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Balaji PG, Bhimrao LS, Yadav AK. Revolutionizing Stroke Care: Nanotechnology-Based Brain Delivery as a Novel Paradigm for Treatment and Diagnosis. Mol Neurobiol 2024:10.1007/s12035-024-04215-3. [PMID: 38829514 DOI: 10.1007/s12035-024-04215-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 05/03/2024] [Indexed: 06/05/2024]
Abstract
Stroke, a severe medical condition arising from abnormalities in the coagulation-fibrinolysis cycle and metabolic processes, results in brain cell impairment and injury due to blood flow obstruction within the brain. Prompt and efficient therapeutic approaches are imperative to control and preserve brain functions. Conventional stroke medications, including fibrinolytic agents, play a crucial role in facilitating reperfusion to the ischemic brain. However, their clinical efficacy is hampered by short plasma half-lives, limited brain tissue distribution attributed to the blood-brain barrier (BBB), and lack of targeted drug delivery to the ischemic region. To address these challenges, diverse nanomedicine strategies, such as vesicular systems, polymeric nanoparticles, dendrimers, exosomes, inorganic nanoparticles, and biomimetic nanoparticles, have emerged. These platforms enhance drug pharmacokinetics by facilitating targeted drug accumulation at the ischemic site. By leveraging nanocarriers, engineered drug delivery systems hold the potential to overcome challenges associated with conventional stroke medications. This comprehensive review explores the pathophysiological mechanism underlying stroke and BBB disruption in stroke. Additionally, this review investigates the utilization of nanocarriers for current therapeutic and diagnostic interventions in stroke management. By addressing these aspects, the review aims to provide insight into potential strategies for improving stroke treatment and diagnosis through a nanomedicine approach.
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Affiliation(s)
- Paul Gajanan Balaji
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Raebareli (An Institute of National Importance under Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, GOI), A Transit Campus at Bijnor-Sisendi Road, Near CRPF Base Camp, Sarojini Nagar, Lucknow, 226002, Uttar Pradesh, India
| | - Londhe Sachin Bhimrao
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Raebareli (An Institute of National Importance under Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, GOI), A Transit Campus at Bijnor-Sisendi Road, Near CRPF Base Camp, Sarojini Nagar, Lucknow, 226002, Uttar Pradesh, India
| | - Awesh K Yadav
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Raebareli (An Institute of National Importance under Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, GOI), A Transit Campus at Bijnor-Sisendi Road, Near CRPF Base Camp, Sarojini Nagar, Lucknow, 226002, Uttar Pradesh, India.
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Zhang Z, Yu C, Wu Y, Wang Z, Xu H, Yan Y, Zhan Z, Yin S. Semiconducting polymer dots for multifunctional integrated nanomedicine carriers. Mater Today Bio 2024; 26:101028. [PMID: 38590985 PMCID: PMC11000120 DOI: 10.1016/j.mtbio.2024.101028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/09/2024] [Accepted: 03/13/2024] [Indexed: 04/10/2024] Open
Abstract
The expansion applications of semiconducting polymer dots (Pdots) among optical nanomaterial field have long posed a challenge for researchers, promoting their intelligent application in multifunctional nano-imaging systems and integrated nanomedicine carriers for diagnosis and treatment. Despite notable progress, several inadequacies still persist in the field of Pdots, including the development of simplified near-infrared (NIR) optical nanoprobes, elucidation of their inherent biological behavior, and integration of information processing and nanotechnology into biomedical applications. This review aims to comprehensively elucidate the current status of Pdots as a classical nanophotonic material by discussing its advantages and limitations in terms of biocompatibility, adaptability to microenvironments in vivo, etc. Multifunctional integration and surface chemistry play crucial roles in realizing the intelligent application of Pdots. Information visualization based on their optical and physicochemical properties is pivotal for achieving detection, sensing, and labeling probes. Therefore, we have refined the underlying mechanisms and constructed multiple comprehensive original mechanism summaries to establish a benchmark. Additionally, we have explored the cross-linking interactions between Pdots and nanomedicine, potential yet complete biological metabolic pathways, future research directions, and innovative solutions for integrating diagnosis and treatment strategies. This review presents the possible expectations and valuable insights for advancing Pdots, specifically from chemical, medical, and photophysical practitioners' standpoints.
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Affiliation(s)
- Ze Zhang
- Department of Hepatobiliary and Pancreatic Surgery II, General Surgery Center, The First Hospital of Jilin University, Changchun, Jilin 130012, PR China
| | - Chenhao Yu
- State Key Laboratory of Integrated Optoelectronic, College of Electronic Science and Engineering, Jilin University, No.2699 Qianjin Street, Changchun, Jilin 130012, PR China
| | - Yuyang Wu
- State Key Laboratory of Integrated Optoelectronic, College of Electronic Science and Engineering, Jilin University, No.2699 Qianjin Street, Changchun, Jilin 130012, PR China
| | - Zhe Wang
- State Key Laboratory of Integrated Optoelectronic, College of Electronic Science and Engineering, Jilin University, No.2699 Qianjin Street, Changchun, Jilin 130012, PR China
| | - Haotian Xu
- Department of Hepatobiliary and Pancreatic Surgery, The Third Bethune Hospital of Jilin University, Changchun, Jilin 130000, PR China
| | - Yining Yan
- Department of Radiology, The Third Bethune Hospital of Jilin University, Changchun, Jilin 130000, PR China
| | - Zhixin Zhan
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130012, PR China
| | - Shengyan Yin
- State Key Laboratory of Integrated Optoelectronic, College of Electronic Science and Engineering, Jilin University, No.2699 Qianjin Street, Changchun, Jilin 130012, PR China
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Huang X, Li L, Chen Z, Yu H, You X, Kong N, Tao W, Zhou X, Huang J. Nanomedicine for the Detection and Treatment of Ocular Bacterial Infections. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2302431. [PMID: 37231939 DOI: 10.1002/adma.202302431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/15/2023] [Indexed: 05/27/2023]
Abstract
Ocular bacterial infection is a prevalent cause of blindness worldwide, with substantial consequences for normal human life. Traditional treatments for ocular bacterial infections areless effective, necessitating the development of novel techniques to enable accurate diagnosis, precise drug delivery, and effective treatment alternatives. With the rapid advancement of nanoscience and biomedicine, increasing emphasis has been placed on multifunctional nanosystems to overcome the challenges posed by ocular bacterial infections. Given the advantages of nanotechnology in the biomedical industry, it can be utilized to diagnose ocular bacterial infections, administer medications, and treat them. In this review, the recent advancements in nanosystems for the detection and treatment of ocular bacterial infections are discussed; this includes the latest application scenarios of nanomaterials for ocular bacterial infections, in addition to the impact of their essential characteristics on bioavailability, tissue permeability, and inflammatory microenvironment. Through an in-depth investigation into the effect of sophisticated ocular barriers, antibacterial drug formulations, and ocular metabolism on drug delivery systems, this review highlights the challenges faced by ophthalmic medicine and encourages basic research and future clinical transformation based on ophthalmic antibacterial nanomedicine.
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Affiliation(s)
- Xiaomin Huang
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University; Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, 200030, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, 200030, China
- Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Luoyuan Li
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University; Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, 200030, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, 200030, China
- The Eighth Affiliated Hospital Sun Yat-sen University, Shenzhen, Guangdong, 518033, P. R. China
| | - Zhongxing Chen
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University; Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, 200030, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, 200030, China
| | - Haoyu Yu
- The Eighth Affiliated Hospital Sun Yat-sen University, Shenzhen, Guangdong, 518033, P. R. China
| | - Xinru You
- Center for Nanomedicine and Department of Anesthesiology Brigham and Women's Hospital Harvard Medical School, Boston, MA, 02115, USA
| | - Na Kong
- Center for Nanomedicine and Department of Anesthesiology Brigham and Women's Hospital Harvard Medical School, Boston, MA, 02115, USA
| | - Wei Tao
- Center for Nanomedicine and Department of Anesthesiology Brigham and Women's Hospital Harvard Medical School, Boston, MA, 02115, USA
| | - Xingtao Zhou
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University; Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, 200030, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, 200030, China
| | - Jinhai Huang
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University; Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, 200030, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, 200030, China
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Promising Role of Silk-Based Biomaterials for Ocular-Based Drug Delivery and Tissue Engineering. Polymers (Basel) 2022; 14:polym14245475. [PMID: 36559842 PMCID: PMC9788421 DOI: 10.3390/polym14245475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 11/14/2022] [Accepted: 12/08/2022] [Indexed: 12/16/2022] Open
Abstract
Silk is a wonderful biopolymer that has a long history of medical applications. Surgical cords and medically authorised human analogues made of silk have a long history of use in management. We describe the use of silk in the treatment of eye diseases in this review by looking at the usage of silk fibroin for eye-related drug delivery applications and medication transfer to the eyes. During this ancient art endeavour, a reduced engineering project that employed silk as a platform for medicine delivery or a cell-filled matrix helped reignite interest. With considerable attention, this study explores the present usage of silk in ocular-based drug delivery. This paper also examines emerging developments with the use of silk as a biopolymer for the treatment of eye ailments. As treatment options for glaucoma, diabetic retinopathy, retinitis pigmentosa, and other retinal diseases and degenerations are developed, the trans-scleral route of drug delivery holds great promise for the selective, sustained-release delivery of these novel therapeutic compounds. We should expect a swarm of silk-inspired materials to enter clinical testing and use on the surface as the secrets of silk are unveiled. This article finishes with a discussion on potential silk power, which adds to better ideas and enhanced ocular medicine delivery.
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Elkomy MH, Ali AA, Eid HM. Chitosan on the surface of nanoparticles for enhanced drug delivery: A comprehensive review. J Control Release 2022; 351:923-940. [DOI: 10.1016/j.jconrel.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 09/29/2022] [Accepted: 10/01/2022] [Indexed: 11/26/2022]
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De Jesús Valle MJ, Zarzuelo Castañeda A, Maderuelo C, Cencerrado Treviño A, Loureiro J, Coutinho P, Sánchez Navarro A. Development of a Mucoadhesive Vehicle Based on Lyophilized Liposomes for Drug Delivery through the Sublingual Mucosa. Pharmaceutics 2022; 14:pharmaceutics14071497. [PMID: 35890395 PMCID: PMC9317145 DOI: 10.3390/pharmaceutics14071497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/12/2022] [Accepted: 07/15/2022] [Indexed: 12/02/2022] Open
Abstract
A pharmaceutical vehicle based on lyophilized liposomes is proposed for the buccal administration of drugs aimed at systemic delivery through the sublingual mucosa. Liposomes made of egg phosphatidylcholine and cholesterol (7/3 molar ratio) were prepared and lyophilized in the presence of different additive mixtures with mucoadhesive and taste-masking properties. Palatability was assayed on healthy volunteers. The lyophilization cycle was optimized, and the lyophilized product was compressed to obtain round and capsule-shaped tables that were evaluated in healthy volunteers. Tablets were also assayed regarding weight and thickness uniformities, swelling index and liposome release. The results proved that lyophilized liposomes in unidirectional round tablets have palatability, small size, comfortability and buccal retention adequate for sublingual administration. In contact with water fluids, the tablets swelled, and rehydrated liposomes were released at a slower rate than permeation efficiency determined using a biomimetic membrane. Permeability efficiency values of 0.72 ± 0.34 µg/cm2/min and 4.18 ± 0.95 µg/cm2/min were obtained for the liposomes with and without additives, respectively. Altogether, the results point to the vehicle proposed as a liposomal formulation suitable for systemic drug delivery through the sublingual mucosa.
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Affiliation(s)
- María José De Jesús Valle
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Salamanca, 37007 Salamanca, Spain; (M.J.D.J.V.); (A.Z.C.); (C.M.); (A.C.T.)
- Institute of Biopharmaceutical Sciences, University of Salamanca, 37007 Salamanca, Spain
| | - Aranzazu Zarzuelo Castañeda
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Salamanca, 37007 Salamanca, Spain; (M.J.D.J.V.); (A.Z.C.); (C.M.); (A.C.T.)
- Institute of Biopharmaceutical Sciences, University of Salamanca, 37007 Salamanca, Spain
| | - Cristina Maderuelo
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Salamanca, 37007 Salamanca, Spain; (M.J.D.J.V.); (A.Z.C.); (C.M.); (A.C.T.)
- Institute of Biopharmaceutical Sciences, University of Salamanca, 37007 Salamanca, Spain
| | - Alejandro Cencerrado Treviño
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Salamanca, 37007 Salamanca, Spain; (M.J.D.J.V.); (A.Z.C.); (C.M.); (A.C.T.)
| | - Jorge Loureiro
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal; (J.L.); (P.C.)
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, 6200-506 Covilha, Portugal
| | - Paula Coutinho
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal; (J.L.); (P.C.)
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, 6200-506 Covilha, Portugal
| | - Amparo Sánchez Navarro
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Salamanca, 37007 Salamanca, Spain; (M.J.D.J.V.); (A.Z.C.); (C.M.); (A.C.T.)
- Institute of Biopharmaceutical Sciences, University of Salamanca, 37007 Salamanca, Spain
- Correspondence: ; Tel.: +34-677-584152
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Arroyo-García CM, Quinteros D, Palma SD, Jiménez de los Santos CJ, Moyano JR, Rabasco AM, González-Rodríguez ML. Synergistic Effect of Acetazolamide-(2-hydroxy)propyl β-Cyclodextrin in Timolol Liposomes for Decreasing and Prolonging Intraocular Pressure Levels. Pharmaceutics 2021; 13:2010. [PMID: 34959292 PMCID: PMC8709067 DOI: 10.3390/pharmaceutics13122010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 11/16/2021] [Accepted: 11/20/2021] [Indexed: 11/16/2022] Open
Abstract
The purpose of this study was to design, for the first time, a co-loaded liposomal formulation (CLL) for treatment of glaucoma including timolol maleate (TM) in the lipid bilayer and acetazolamide (Acz)-(2-hydroxy)propyl β-cyclodextrin (HPβCD) complexes (AczHP) solubilized in the aqueous core of liposomes. Formulations with TM (TM-L) and AczHP (AczHP-L), separately, were also prepared and characterized. A preliminary study comprising the Acz/HPβCD complexes and their interaction with cholesterol (a component of the lipid bilayer) was realized. Then, a screening study on formulation factors affecting the quality of the product was carried out following the design of the experiment methodology. In addition, in vitro release and permeation studies and in vivo lowering intraocular pressure (IOP) studies were performed. The results of the inclusion complexation behavior, characterization, and binding ability of Acz with HPβCD showed that HPβCD could enhance the water solubility of Acz despite the weak binding ability of the complex. Ch disturbed the stability and solubility parameters of Acz due to the fact of its competence by CD; thus, Chems (steroid derivative) was selected for further liposome formulation studies. The optimization of the lipid bilayer composition (DDAB, 0.0173 mmol and no double loading) and the extrusion as methods to reduce vesicle size were crucial for improving the physico-chemical properties and encapsulation efficiency of both drugs. In vitro release and permeation studies demonstrated that the CLL formulation showed improvement in in vitro drug release and permeation compared to the liposomal formulations with a single drug (TM-L and AczHP-L) and the standard solutions (TM-S and AczHP-S). CLL showed high efficacy in reducing and prolonging IOP, suggesting that the synergistic effect of TM and Acz on aqueous humor retention and the presence of this cyclodextrin and liposomes as permeation enhancers are responsible for the success of this strategy of co-loading for glaucoma therapy.
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Affiliation(s)
- Carmen M. Arroyo-García
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidad de Sevilla, C/Prof. García González, 2, 41012 Sevilla, Spain; (C.M.A.-G.); (C.J.J.d.l.S.); (J.R.M.); (A.M.R.)
| | - Daniela Quinteros
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET, Universidad Nacional de Córdoba, Ciudad Universitaria, Córdoba 5000, Argentina; (D.Q.); (S.D.P.)
- Departamento de Farmacia, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, Córdoba 5000, Argentina
| | - Santiago D. Palma
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET, Universidad Nacional de Córdoba, Ciudad Universitaria, Córdoba 5000, Argentina; (D.Q.); (S.D.P.)
- Departamento de Farmacia, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, Córdoba 5000, Argentina
| | - Cesáreo J. Jiménez de los Santos
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidad de Sevilla, C/Prof. García González, 2, 41012 Sevilla, Spain; (C.M.A.-G.); (C.J.J.d.l.S.); (J.R.M.); (A.M.R.)
| | - José R. Moyano
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidad de Sevilla, C/Prof. García González, 2, 41012 Sevilla, Spain; (C.M.A.-G.); (C.J.J.d.l.S.); (J.R.M.); (A.M.R.)
| | - Antonio M. Rabasco
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidad de Sevilla, C/Prof. García González, 2, 41012 Sevilla, Spain; (C.M.A.-G.); (C.J.J.d.l.S.); (J.R.M.); (A.M.R.)
| | - María Luisa González-Rodríguez
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidad de Sevilla, C/Prof. García González, 2, 41012 Sevilla, Spain; (C.M.A.-G.); (C.J.J.d.l.S.); (J.R.M.); (A.M.R.)
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Mofidfar M, Abdi B, Ahadian S, Mostafavi E, Desai TA, Abbasi F, Sun Y, Manche EE, Ta CN, Flowers CW. Drug delivery to the anterior segment of the eye: A review of current and future treatment strategies. Int J Pharm 2021; 607:120924. [PMID: 34324989 PMCID: PMC8579814 DOI: 10.1016/j.ijpharm.2021.120924] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/02/2021] [Accepted: 07/05/2021] [Indexed: 01/03/2023]
Abstract
Research in the development of ophthalmic drug formulations and innovative technologies over the past few decades has been directed at improving the penetration of medications delivered to the eye. Currently, approximately 90% of all ophthalmic drug formulations (e.g. liposomes, micelles) are applied as eye drops. The major challenge of topical eye drops is low bioavailability, need for frequent instillation due to the short half-life, poor drug solubility, and potential side effects. Recent research has been focused on improving topical drug delivery devices by increasing ocular residence time, overcoming physiological and anatomical barriers, and developing medical devices and drug formulations to increase the duration of action of the active drugs. Researchers have developed innovative technologies and formulations ranging from sub-micron to macroscopic size such as prodrugs, enhancers, mucus-penetrating particles (MPPs), therapeutic contact lenses, and collagen corneal shields. Another approach towards the development of effective topical drug delivery is embedding therapeutic formulations in microdevices designed for sustained release of the active drugs. The goal is to optimize the delivery of ophthalmic medications by achieving high drug concentration with prolonged duration of action that is convenient for patients to administer.
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Affiliation(s)
| | - Behnam Abdi
- Institute of Polymeric Materials (IPM), Sahand University of Technology, New Town of Sahand, Tabriz, Iran; Faculty of Polymer Engineering, Sahand University of Technology, New Town of Sahand, Tabriz, Iran
| | - Samad Ahadian
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, USA
| | - Ebrahim Mostafavi
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA; Stanford Cardiovascular Institute, Stanford University, CA, USA
| | - Tejal A Desai
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA, USA
| | - Farhang Abbasi
- Institute of Polymeric Materials (IPM), Sahand University of Technology, New Town of Sahand, Tabriz, Iran; Faculty of Polymer Engineering, Sahand University of Technology, New Town of Sahand, Tabriz, Iran
| | - Yang Sun
- Byers Eye Institute, Stanford University School of Medicine, Palo Alto, CA, USA.
| | - Edward E Manche
- Byers Eye Institute, Stanford University School of Medicine, Palo Alto, CA, USA.
| | - Christopher N Ta
- Byers Eye Institute, Stanford University School of Medicine, Palo Alto, CA, USA.
| | - Charles W Flowers
- USC Roski Eye Institute, University of Southern California, Los Angeles, CA, USA.
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Balance of Drug Residence and Diffusion in Lacrimal Fluid Determine Ocular Bioavailability in In Situ Gels Incorporating Tranilast Nanoparticles. Pharmaceutics 2021; 13:pharmaceutics13091425. [PMID: 34575501 PMCID: PMC8466670 DOI: 10.3390/pharmaceutics13091425] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/03/2021] [Accepted: 09/07/2021] [Indexed: 11/16/2022] Open
Abstract
We previously designed ophthalmic formulations (nTRA) containing tranilast nanoparticles (Tra-NPs) with high uptake into ocular tissues. In this study, we used in situ gel (ISG) bases comprising combinations of pluronic F127 (F127) and methylcellulose (MC/F127), pluronic F68 (F68/F127), and Carbopol (Car/F127), and we developed in situ gels incorporating Tra-NPs (Tra-NP-incorporated ISNGs) such as nTRA-F127, nTRA-MC/F127, nTRA-F68/F127, and nTRA-Car/F127. Moreover, we demonstrated the therapeutic effect on conjunctival inflammation using lipopolysaccharide-induced rats. Each Tra-NP-incorporated ISNG was prepared by the bead mill method, the particle size was 40–190 nm, and the tranilast release and diffusion from formulation were nTRA > nTRA-F127 > nTRA-F68/F127 > nTRA-Car/F127 > nTRA-MC/F127. In the Tra-NP-incorporated ISNGs, the tranilast residence time in the lacrimal fluid, cornea, and conjunctiva was prolonged, although the Cmax was attenuated in comparison with nTRA. On the other hand, no significant difference in conjunctival inflammation between non- and nTRA-F127-instilled rats was found; however, the nTRA-F68/F127, nTRA-Car/F127, and nTRA-MC/F127 (combination-ISG) attenuated the vessel leakage, nitric oxide, and tumor necrosis factor-α expression. In particular, nTRA-F68/F127 was significant in preventing the conjunctival inflammation. In conclusion, we found that the combination-ISG base prolonged the residence time of Tra-NPs; however, Tra-NP release from the formulation was attenuated, and the Tmax was delayed longer than that in nTRA. The balance of drug residence and diffusion in lacrimal fluid may be important in providing high ocular bioavailability in formulations containing solid nanoparticles.
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Musa A, Elmaidomy AH, Sayed AM, Alzarea SI, Al-Sanea MM, Mostafa EM, Hendawy OM, Abdelgawad MA, Youssif KA, Refaat H, Alaaeldin E, Abdelmohsen UR. Cytotoxic Potential, Metabolic Profiling, and Liposomes of Coscinoderma sp. Crude Extract Supported by in silico Analysis. Int J Nanomedicine 2021; 16:3861-3874. [PMID: 34113103 PMCID: PMC8187037 DOI: 10.2147/ijn.s310720] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 05/06/2021] [Indexed: 11/23/2022] Open
Abstract
Introduction Sponge-Coscinoderma sp. (Family: Spongiidae) is a coastal sponge that possesses a broad variety of natural-products. However, the exact chemical constituents and cytotoxic activity of the extract are still undefinable. Methodology In the present study, the metabolomic profiling of Coscinoderma sp. dereplicated 20 compounds, utilizing liquid chromatography coupled with high-resolution mass spectrometry (LC-HRESIMS). Coscinoderma-derived crude extract, before and after encapsulation within nanosized liposomes, was in vitro screened against hepatic, breast, and colorectal carcinoma human cell lines (HepG2, MCF-7, and Caco-2, respectively). Results The identified metabolites were fit to diverse chemical classes, covering diterpenes, an indole alkaloid, sesterterpenoid, sterol, and methylherbipoline salt. Comprehensive in silico experiments predicted several compounds in the sponge-derived extract (eg, compounds 1-15) to have an anticancer potential via targeting multiple targets. The crude extract showed moderate antiproliferative activities towards studied cell lines with IC50 values range from 10.7 to 12.4 µg/mL. The formulated extract-containing liposomes (size 141±12.3nm, PDI 0.222, zeta potential 20.8 ± 2.3), significantly enhanced the in vitro anticancer activity of the entrapped extract (IC50 values ranged from 1.7 to 4.1 µg/mL). Discussion Encapsulation of both the hydrophilic and the lipophilic components of the extract within the lipid-based nanovesicles enhanced the cellular uptake and accessibility of the entrapped cargo. This study introduces liposomal nano-vesicles as a promising approach to improve the therapeutic potential of sponge-derived extracts.
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Affiliation(s)
- Arafa Musa
- Department of Pharmacognosy, College of Pharmacy, Jouf University, Sakaka, 72341, Saudi Arabia.,Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Cairo, 11371, Egypt
| | - Abeer H Elmaidomy
- Department of Pharmacognosy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Ahmed M Sayed
- Department of Pharmacognosy, Faculty of Pharmacy, Nahda University, Beni-Suef, 62513, Egypt
| | - Sami I Alzarea
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka, Aljouf, 72341, Saudi Arabia
| | - Mohammad M Al-Sanea
- Pharmaceutical Chemistry Department, College of Pharmacy, Jouf University, Sakaka, Aljouf, 72341, Saudi Arabia
| | - Ehab M Mostafa
- Department of Pharmacognosy, College of Pharmacy, Jouf University, Sakaka, 72341, Saudi Arabia.,Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Cairo, 11371, Egypt
| | - Omina Magdy Hendawy
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka, Aljouf, 72341, Saudi Arabia.,Department of Clinical Pharmacology, Faculty of Medicine, Beni-Suef University, Beni-Suef, 62513, Egypt
| | - Mohamed A Abdelgawad
- Pharmaceutical Chemistry Department, College of Pharmacy, Jouf University, Sakaka, Aljouf, 72341, Saudi Arabia
| | - Khayrya A Youssif
- Department of Pharmacognosy, Faculty of Pharmacy, Modern University for Technology and Information, Cairo, Egypt
| | - Hesham Refaat
- Department of Pharmaceutics, Faculty of Pharmacy, Deraya University, 7 Universities Zone, New Minia, 61111, Egypt
| | - Eman Alaaeldin
- Department of Pharmaceutics, Faculty of Pharmacy, Minia University, Minia, 61519, Egypt.,Department of Clinical Pharmacy, Faculty of Pharmacy, Deraya University, 7 Universities Zone, New Minia, 61111, Egypt
| | - Usama Ramadan Abdelmohsen
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia, 61519, Egypt.,Department of Pharmacognosy, Faculty of Pharmacy, Deraya University, 7 Universities Zone, New Minia, 61111, Egypt
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11
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Salas-Ambrosio PJ, Bernad-Bernad MJ, Linares-Alba MA, García-Santisteban R, Tonix-Aburto LA, Ornelas-Lobato GJ, Gracia-Mora I, Rivera-Huerta M, Sánchez-Bartez F, Rico-Morales H, García-Sánchez GA. Toxicity Evaluation of a Novel Rapamycin Liposomal Formulation After Subconjunctival and Intravitreal Injection. J Ocul Pharmacol Ther 2021; 37:261-276. [PMID: 33691483 DOI: 10.1089/jop.2020.0108] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Purpose: Safety and toxicity evaluation of a novel, liposome-encapsulated rapamycin formulation, intended for autoimmune ocular disorders. Methods: The formulation was assessed by micronucleus polychromatic erythrocyte production, irritability by Hen's Egg Test-Chorioallantoic Membrane (HET CAM), sterility, and pyrogenicity testing. Subconjunctival (SCJ) and intravitreal (IVT) administration of the formulation were performed to evaluate subacute and acute toxicity, respectively. Differences between groups in biochemical and hematological parameters were evaluated by analysis of variance and t-tests. Numeric score was assigned to histopathological classification. Electroretinography (ERG) testing was also performed. Data were analyzed by a 1 way no parametric Kruskal-Wallis and the Mann-Whitney tests. Significance was considered when P < 0.05. Results: No significant toxicity directly related to the preparation was detected. Micronucleus count, mucous irritation score, and pyrogenicity results were negative. Pathology demonstrated no damage related to the formulation after SCJ injection. After IVT injection, only lens injury associated with technique was observed. Retinal function was also conserved in ERG. Conclusions: The preparation evaluated offers a good toxicity and safety profile when injected in a SCJ or IVT manner in an animal model. A clinical trial conducted in humans is highly warranted, as it could reveal an alternative immunosuppressive treatment for ophthalmological immune-mediated pathologies.
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Affiliation(s)
| | | | | | | | | | | | - Isabel Gracia-Mora
- Facultad de Química, Universidad Nacional Autónoma de México, Coyoacán, Mexico City
| | | | | | - Héctor Rico-Morales
- Facultad de Química, Universidad Nacional Autónoma de México, Coyoacán, Mexico City
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12
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Grassiri B, Zambito Y, Bernkop-Schnürch A. Strategies to prolong the residence time of drug delivery systems on ocular surface. Adv Colloid Interface Sci 2021; 288:102342. [PMID: 33444845 DOI: 10.1016/j.cis.2020.102342] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 12/09/2020] [Accepted: 12/09/2020] [Indexed: 12/12/2022]
Abstract
Ocular diseases may be treated via different routes of administration, such as topical, intracameral, intravitreal, oral and parenteral. Among them the topical route is most accepted by patients, although it provides in many cases the lowest bioavailability. Indeed, when a topical formulation reaches the precorneal area, i.e., the drug absorption and/or action site, it is rapidly eliminated due to eye protection mechanisms such as blinking, basal and reflex tearing, and naso-lacrimal draining. To avoid this and to reduce the frequency of dosing, various strategies have been developed to prolong drug residence time after topical administration. These strategies include the use of viscosity increasing and mucoadhesive excipients as well as combinations thereof. From the drug delivery system point of view, liquid and semisolid formulations are preferred over solid formulations such as ocular inserts and contact lenses. Furthermore, liquid and semisolid formulations can contain nano- and microcarrier systems that contribute to a prolonged residence time. Within this review an overview about the different types of excipients and formulations as well as their performance in valid animal models and clinical trials is provided.
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Affiliation(s)
- Brunella Grassiri
- Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy
| | - Ylenia Zambito
- Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy; Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy; Interdepartmental Research Center "Nutraceuticals and Food for Health", University of Pisa, Pisa 56100, Italy
| | - Andreas Bernkop-Schnürch
- Institute of Pharmacy/Dep. of Pharmaceutical Technology, Center for Chemistry and Biomedicine, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria.
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13
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Basu A, Domb AJ. Ion Exchange Nanoparticles for Ophthalmic Drug Delivery. Bioconjug Chem 2020; 31:2726-2736. [PMID: 33137253 DOI: 10.1021/acs.bioconjchem.0c00521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report here on ion-exchange polymeric nanoparticles from a linear copolymer of maleic anhydride methyl vinyl ether esterified with 30% octadecanol. The side chains for the polymer structure were optimized through metadynamics simulations, which revealed the use of octadecanol esters generates ideal free energy surfaces for drug encapsulation and release. Nanoparticles were synthesized using a solvent evaporation-precipitation method by mixing the polymer solution in acetone into water; upon acetone evaporation, a nanodispersion with an average particle size of ∼150 nm was obtained. Gentamicin sulfate, possessing five amino groups, was spontaneously entrapped in the nanocarrier by ionic interactions. Encapsulation efficiency increases significantly with the increase in pH and ionic strength. In vivo results demonstrate high gentamicin (GM) content in the enteric chamber (AUC 8207 ± 1334 (μg min)/mL) compared to 3% GM solution (AUC 2024 ± 438 (μg min)/mL). The formulation was also able to significantly extend the release of gentamicin when applied to rabbit cornea. These anionic nanoparticles can be used for extended-release of other cationic drugs.
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Affiliation(s)
- Arijit Basu
- School of Pharmacy, Institute of Drug Research-Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
| | - Abraham J Domb
- School of Pharmacy, Institute of Drug Research-Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
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14
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El Hoffy NM, Abdel Azim EA, Hathout RM, Fouly MA, Elkheshen SA. Glaucoma: Management and Future Perspectives for Nanotechnology-Based Treatment Modalities. Eur J Pharm Sci 2020; 158:105648. [PMID: 33227347 DOI: 10.1016/j.ejps.2020.105648] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/12/2020] [Accepted: 11/13/2020] [Indexed: 12/11/2022]
Abstract
Glaucoma, being asymptomatic for relatively late stage, is recognized as a worldwide cause of irreversible vision loss. The eye is an impervious organ that exhibits natural anatomical and physiological barriers which renders the design of an efficient ocular delivery system a formidable task and challenge scientists to find alternative formulation approaches. In the field of glaucoma treatment, smart delivery systems for targeting have aroused interest in the topical ocular delivery field owing to its potentiality to oppress many treatment challenges associated with many of glaucoma types. The current momentum of nano-pharmaceuticals, in the development of advanced drug delivery systems, hold promises for much improved therapies for glaucoma to reduce its impact on vision loss. In this review, a brief about glaucoma; its etiology, predisposing factors and different treatment modalities has been reviewed. The diverse ocular drug delivery systems currently available or under investigations have been presented. Additionally, future foreseeing of new drug delivery systems that may represent potential means for more efficient glaucoma management are overviewed. Finally, a gab-analysis for the required investigation to pave the road for commercialization of ocular novel-delivery systems based on the nano-technology are discussed.
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Affiliation(s)
- Nada M El Hoffy
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences and Pharmaceutical Industries, Future University in Egypt
| | - Engy A Abdel Azim
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences and Pharmaceutical Industries, Future University in Egypt
| | - Rania M Hathout
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | | | - Seham A Elkheshen
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
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15
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Besifloxacin liposomes with positively charged additives for an improved topical ocular delivery. Sci Rep 2020; 10:19285. [PMID: 33159142 PMCID: PMC7648625 DOI: 10.1038/s41598-020-76381-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 10/22/2020] [Indexed: 02/08/2023] Open
Abstract
Topical ophthalmic antibiotics show low efficacy due to the well-known physiological defense mechanisms of the eye, which prevents the penetration of exogenous substances. Here, we aimed to incorporate besifloxacin into liposomes containing amines as positively charged additives and to evaluate the influence of this charge on drug delivery in two situations: (i) iontophoretic and (ii) passive treatments. Hypothesis are (i) charge might enhance the electromigration component upon current application improving penetration efficiency for a burst drug delivery, and (ii) positive charge might prolong formulation residence time, hence drug penetration. Liposomes elaborated with phosphatidylcholine (LP PC) or phosphatidylcholine and spermine (LP PC: SPM) were stable under storage at 6 ºC for 30 days, showed mucoadhesive characteristics, and were non-irritant, according to HET-CAM tests. Electron paramagnetic resonance spectroscopy measurements showed that neither the drug nor spermine incorporations produced evident alterations in the fluidity of the liposome's membranes, which retained their structural stability even under iontophoretic conditions. Mean diameter and zeta potential were 177.2 ± 2.7 nm and − 5.7 ± 0.3 mV, respectively, for LP PC; and 175.4 ± 1.9 nm and + 19.5 ± 1.0 mV, respectively, for LP PC:SPM. The minimal inhibitory concentration (MIC) and the minimal bactericide concentration (MBC) of the liposomes for P. aeruginosa showed values lower than the commercial formulation (Besivance). Nevertheless, both formulations presented a similar increase in permeability upon the electric current application. Hence, liposome charge incorporation did not prove to be additionally advantageous for iontophoretic therapy. Passive drug penetration was evaluated through a novel in vitro ocular model that simulates the lacrimal flow and challenges the formulation resistance in the passive delivery situation. As expected, LP PC: SPM showed higher permeation than the control (Besivance). In conclusion, besifloxacin incorporation into positively charged liposomes improved passive topical delivery and can be a good strategy to improve topical ophthalmic treatments.
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16
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Nasr M, Teiama M, Ismail A, Ebada A, Saber S. In vitro and in vivo evaluation of cubosomal nanoparticles as an ocular delivery system for fluconazole in treatment of keratomycosis. Drug Deliv Transl Res 2020; 10:1841-1852. [DOI: 10.1007/s13346-020-00830-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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17
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Lanier OL, Christopher KG, Macoon RM, Yu Y, Sekar P, Chauhan A. Commercialization challenges for drug eluting contact lenses. Expert Opin Drug Deliv 2020; 17:1133-1149. [DOI: 10.1080/17425247.2020.1787983] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Olivia L. Lanier
- Chemical and Biological Engineering, Colorado School of Mines, Golden, CO, USA
| | | | - Russell M. Macoon
- Department of Chemical Engineering, University of Florida, Gainesville, FL, USA
| | - Yifan Yu
- Department of Chemical Engineering, University of Florida, Gainesville, FL, USA
| | - Poorvajan Sekar
- Department of Chemical Engineering, University of Florida, Gainesville, FL, USA
| | - Anuj Chauhan
- Chemical and Biological Engineering, Colorado School of Mines, Golden, CO, USA
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18
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Suri R, Neupane YR, Mehra N, Jain GK, Kohli K. Sirolimus loaded polyol modified liposomes for the treatment of Posterior Segment Eye Diseases. Med Hypotheses 2020; 136:109518. [DOI: 10.1016/j.mehy.2019.109518] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 12/04/2019] [Indexed: 02/07/2023]
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19
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Zhang X, Cao X, Qi P. Therapeutic contact lenses for ophthalmic drug delivery: major challenges. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:549-560. [PMID: 31902299 DOI: 10.1080/09205063.2020.1712175] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Xiuju Zhang
- Department of General Practice, Linyi People’s Hospital, Linyi, Shandong, China
| | - Xiuzhen Cao
- Department of Anus and Intestine Surgery, Taian Central Hospital, Taian, Shandong, China
| | - Ping Qi
- Department of General Practice, Linyi People’s Hospital, Linyi, Shandong, China
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20
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Modified Spraying Technique and Response Surface Methodology for the Preparation and Optimization of Propolis Liposomes of Enhanced Anti-Proliferative Activity against Human Melanoma Cell Line A375. Pharmaceutics 2019; 11:pharmaceutics11110558. [PMID: 31661945 PMCID: PMC6921042 DOI: 10.3390/pharmaceutics11110558] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 10/17/2019] [Accepted: 10/20/2019] [Indexed: 11/30/2022] Open
Abstract
Propolis is a honeybee product that contains a mixture of natural substances with a broad spectrum of biological activities. However, the clinical application of propolis is limited due to the presence of a myriad of constituents with different physicochemical properties, low bioavailability and lack of appropriate formulations. In this study, a modified injection technique (spraying technique) has been developed for the encapsulation of the Egyptian propolis within liposomal formulation. The effects of three variables (lipid molar concentration, drug loading and cholesterol percentage) on the particle size and poly dispersity index (PDI) were studied using response surface methodology and the Box–Behnken design. Response surface diagrams were used to develop an optimized liposomal formulation of the Egyptian propolis. A comparative study between the optimized liposomal formulation prepared either by the typical ethanol injection method (TEIM) or the spraying method in terms of particle size, PDI and the in-vitro anti-proliferative effect against human melanoma cell line A375 was carried out. The spraying method resulted in the formation of smaller propolis-loaded liposomes compared to TEIM (particle sizes of 90 ± 6.2 nm, and 170 ± 14.7 nm, respectively). Furthermore, the IC50 values against A375 cells were found to be 3.04 ± 0.14, 4.5 ± 0.09, and 18.06 ± 0.75 for spray-prepared propolis liposomes (PP-Lip), TEIM PP-Lip, and propolis extract (PE), respectively. The encapsulation of PE into liposomes is expected to improve its cellular uptake by endocytosis. Moreover, smaller and more uniform liposomes obtained by spraying can be expected to achieve higher cellular uptake, as the ratio of liposomes or liposomal aggregates that fall above the capacity of cell membrane to “wrap” them will be minimized.
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21
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Gómez-Ballesteros M, López-Cano JJ, Bravo-Osuna I, Herrero-Vanrell R, Molina-Martínez IT. Osmoprotectants in Hybrid Liposome/HPMC Systems as Potential Glaucoma Treatment. Polymers (Basel) 2019; 11:polym11060929. [PMID: 31141875 PMCID: PMC6631938 DOI: 10.3390/polym11060929] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 05/21/2019] [Accepted: 05/21/2019] [Indexed: 01/11/2023] Open
Abstract
The combination of acetazolamide-loaded nano-liposomes and Hydroxypropyl methylcellulose (HPMC) with similar components to the preocular tear film in an osmoprotectant media (trehalose and erythritol) is proposed as a novel strategy to increase the ocular bioavailability of poorly soluble drugs. Ophthalmic formulations based on acetazolamide-loaded liposomes, dispersed in the osmoprotectant solution (ACZ-LP) or in combination with HPMC (ACZ-LP-P) were characterized and in vivo evaluated. The pH and tonicity of both formulations resulted in physiological ranges. The inclusion of HPMC produced an increment in viscosity (from 0.9 to 4.7 mPa·s. 64.9 ± 2.6% of acetazolamide initially included in the formulation was retained in vesicles. In both formulations, a similar onset time (1 h) and effective time periods were observed (7 h) after a single instillation (25 μL) in normotensive rabbits' eyes. The AUC0-8h of the ACZ-LP-P was 1.5-fold higher than of ACZ-LP (p < 0.001) and the maximum hypotensive effect resulted in 1.4-fold higher (p < 0.001). In addition, the formulation of ACZ in the hybrid liposome/HPMC system produced a 30.25-folds total increment in ocular bioavailability, compared with the drug solution. Excellent tolerance in rabbits' eyes was confirmed during the study.
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Affiliation(s)
- Miguel Gómez-Ballesteros
- Complutense University, Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Plaza Ramón y Cajal s/n, Madrid 28040, Spain.
| | - José Javier López-Cano
- Complutense University, Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Plaza Ramón y Cajal s/n, Madrid 28040, Spain.
| | - Irene Bravo-Osuna
- Complutense University, Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Plaza Ramón y Cajal s/n, Madrid 28040, Spain.
- Ocular Pathology National Net (OFTARED) of the Institute of Health Carlos III, Health Research Institute of the San Carlos Clinical Hospital (IdISSC), Madrid 28040, Spain.
| | - Rocío Herrero-Vanrell
- Complutense University, Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Plaza Ramón y Cajal s/n, Madrid 28040, Spain.
- Ocular Pathology National Net (OFTARED) of the Institute of Health Carlos III, Health Research Institute of the San Carlos Clinical Hospital (IdISSC), Madrid 28040, Spain.
| | - Irene Teresa Molina-Martínez
- Complutense University, Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Plaza Ramón y Cajal s/n, Madrid 28040, Spain.
- Ocular Pathology National Net (OFTARED) of the Institute of Health Carlos III, Health Research Institute of the San Carlos Clinical Hospital (IdISSC), Madrid 28040, Spain.
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22
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Mu H, Wang Y, Chu Y, Jiang Y, Hua H, Chu L, Wang K, Wang A, Liu W, Li Y, Fu F, Sun K. Multivesicular liposomes for sustained release of bevacizumab in treating laser-induced choroidal neovascularization. Drug Deliv 2018; 25:1372-1383. [PMID: 29869520 PMCID: PMC6058521 DOI: 10.1080/10717544.2018.1474967] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Bevacizumab is an anti-vascular endothelial growth factor drug that can be used to treat choroidal neovascularization (CNV). Bevacizumab-loaded multivesicular liposomes (Bev-MVLs) have been designed and developed to increase the intravitreal retention time of bevacizumab and reduce the number of injection times. In this study, Bev-MVLs with high encapsulation efficiency were prepared by double emulsification technique, and antibody activity was determined. The results revealed that 10% of human serum albumin (HSA) could preserve the activity of bevacizumab. In vitro release of Bev-MVLs appeared to be in a more sustained manner, the underlying mechanisms of Bev-MVLs indicated that bevacizumab was released from MVLs through diffusion and erosion. Results of sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) demonstrated that bevacizumab could retain its structural integrity after being released from MVLs in vitro. In vivo imaging was used to evaluate the retention time of antibody in rat eyes, while pharmacokinetic analysis was performed on rabbit eyes. These results indicated that Bev-MVLs exhibited sustained release effects as compared to bevacizumab solution (Bev-S). Bev-MVLs could effectively inhibit the thickness of CNV lesion as compared to Bev-S at 28 days after treatment. Furthermore, these data suggest that Bev-MVLs are biologically feasible to increase the retention time of bevacizumab in vitreous humor. This novel Bev-MVLs may therefore serve as a promising sustained release drug delivery system for the treatment of CNV.
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Affiliation(s)
- Hongjie Mu
- a School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education , Yantai University , Yantai , Shandong Province , People's Republic of China
| | - Yiyun Wang
- a School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education , Yantai University , Yantai , Shandong Province , People's Republic of China
| | - Yongchao Chu
- a School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education , Yantai University , Yantai , Shandong Province , People's Republic of China
| | - Ying Jiang
- a School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education , Yantai University , Yantai , Shandong Province , People's Republic of China
| | - Hongchen Hua
- a School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education , Yantai University , Yantai , Shandong Province , People's Republic of China
| | - Liuxiang Chu
- a School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education , Yantai University , Yantai , Shandong Province , People's Republic of China
| | - Kaili Wang
- a School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education , Yantai University , Yantai , Shandong Province , People's Republic of China
| | - Aiping Wang
- a School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education , Yantai University , Yantai , Shandong Province , People's Republic of China
| | - Wanhui Liu
- a School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education , Yantai University , Yantai , Shandong Province , People's Republic of China.,b State Key Laboratory of Long-Acting and Targeting Drug Delivery System , Shandong Luye Pharmaceutical Co., Ltd. , Yantai , Shandong Province , People's Republic of China
| | - Youxin Li
- a School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education , Yantai University , Yantai , Shandong Province , People's Republic of China.,b State Key Laboratory of Long-Acting and Targeting Drug Delivery System , Shandong Luye Pharmaceutical Co., Ltd. , Yantai , Shandong Province , People's Republic of China
| | - Fenghua Fu
- a School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education , Yantai University , Yantai , Shandong Province , People's Republic of China.,b State Key Laboratory of Long-Acting and Targeting Drug Delivery System , Shandong Luye Pharmaceutical Co., Ltd. , Yantai , Shandong Province , People's Republic of China
| | - Kaoxiang Sun
- a School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education , Yantai University , Yantai , Shandong Province , People's Republic of China
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23
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Supercritical assisted process for the efficient production of liposomes containing antibiotics for ocular delivery. J CO2 UTIL 2018. [DOI: 10.1016/j.jcou.2018.04.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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24
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Dubald M, Bourgeois S, Andrieu V, Fessi H. Ophthalmic Drug Delivery Systems for Antibiotherapy-A Review. Pharmaceutics 2018; 10:E10. [PMID: 29342879 PMCID: PMC5874823 DOI: 10.3390/pharmaceutics10010010] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 01/04/2018] [Accepted: 01/09/2018] [Indexed: 11/16/2022] Open
Abstract
The last fifty years, ophthalmic drug delivery research has made much progress, challenging scientists about the advantages and limitations of this drug delivery approach. Topical eye drops are the most commonly used formulation in ocular drug delivery. Despite the good tolerance for patients, this topical administration is only focus on the anterior ocular diseases and had a high precorneal loss of drugs due to the tears production and ocular barriers. Antibiotics are popularly used in solution or in ointment for the ophthalmic route. However, their local bioavailability needs to be improved in order to decrease the frequency of administrations and the side effects and to increase their therapeutic efficiency. For this purpose, sustained release forms for ophthalmic delivery of antibiotics were developed. This review briefly describes the ocular administration with the ocular barriers and the currently topical forms. It focuses on experimental results to bypass the limitations of ocular antibiotic delivery with new ocular technology as colloidal and in situ gelling systems or with the improvement of existing forms as implants and contact lenses. Nanotechnology is presently a promising drug delivery way to provide protection of antibiotics and improve pathway through ocular barriers and deliver drugs to specific target sites.
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Affiliation(s)
- Marion Dubald
- Univ Lyon, Université Claude Bernard Lyon 1, Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Automatique et de GEnie des Procédés (LAGEP) Unité Mixte de Recherche UMR 5007, 43 boulevard du 11 novembre 1918, F-69100, Villeurbanne, France.
- Horus Pharma, Cap Var, 148 avenue Georges Guynemer, F-06700 Saint Laurent du Var, France.
| | - Sandrine Bourgeois
- Univ Lyon, Université Claude Bernard Lyon 1, Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Automatique et de GEnie des Procédés (LAGEP) Unité Mixte de Recherche UMR 5007, 43 boulevard du 11 novembre 1918, F-69100, Villeurbanne, France.
- Univ Lyon, Université Claude Bernard Lyon 1, Institut des Sciences Pharmaceutiques et Biologiques (ISPB) - Faculté de Pharmacie de Lyon, 8 avenue Rockefeller, F-69008, Lyon, France.
| | - Véronique Andrieu
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Émergentes (URMITE), Unité Mixte de Recherche 6236 Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université, Faculté de Médecine et de Pharmacie, F-13005 Marseille, France.
| | - Hatem Fessi
- Univ Lyon, Université Claude Bernard Lyon 1, Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Automatique et de GEnie des Procédés (LAGEP) Unité Mixte de Recherche UMR 5007, 43 boulevard du 11 novembre 1918, F-69100, Villeurbanne, France.
- Univ Lyon, Université Claude Bernard Lyon 1, Institut des Sciences Pharmaceutiques et Biologiques (ISPB) - Faculté de Pharmacie de Lyon, 8 avenue Rockefeller, F-69008, Lyon, France.
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Abstract
The complexity of the structure and nature of the eye emanates a challenge for drug delivery to formulation scientists. Lower bioavailability concern of conventional ocular formulation provokes the interest of researchers in the development of novel drug delivery system. Nanotechnology-based formulations have been extensively investigated and found propitious in improving bioavailability of drugs by overcoming ocular barriers prevailing in the eye. The advent of nanocrystals helped in combating the problem of poorly soluble drugs specifically for oral and parenteral drug delivery and led to development of various marketed products. Nanocrystal-based formulations explored for ocular drug delivery have been found successful in achieving increase in retention time, bioavailability, and permeability of drugs across the corneal and conjunctival epithelium. In this review, we have highlighted the ocular physiology and barriers in drug delivery. A comparative analysis of various nanotechnology-based ocular formulations is done with their pros and cons. Consideration is also given to various methods of preparation of nanocrystals with their patented technology. This article highlights the success achieved in conquering various challenges of ocular delivery by the use of nanocrystals while emphasizing on its advantages and application for ocular formulation. The perspectives of nanocrystals as an emerging flipside to explore the frontiers of ocular drug delivery are discussed.
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Affiliation(s)
- Om Prakash Sharma
- Department of Pharmaceutics and Pharmaceutical Technology, Institute of Pharmacy, Nirma University, S. G. Highway, Ahmedabad, Gujarat, 382 481, India
| | - Viral Patel
- Department of Pharmaceutics and Pharmaceutical Technology, Institute of Pharmacy, Nirma University, S. G. Highway, Ahmedabad, Gujarat, 382 481, India
| | - Tejal Mehta
- Department of Pharmaceutics and Pharmaceutical Technology, Institute of Pharmacy, Nirma University, S. G. Highway, Ahmedabad, Gujarat, 382 481, India.
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Barse RK, Tagalpallewar AA, Kokare CR, Sharma JP, Sharma PK. Formulation and ex vivo-in vivo evaluation of pH-triggered brimonidine tartrate in situ gel for the glaucoma treatment using application of 3 2 factorial design. Drug Dev Ind Pharm 2017; 44:800-807. [PMID: 29228819 DOI: 10.1080/03639045.2017.1414229] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
CONTEXT Short residence time, poor bioavailability and poor permeability are the major problems for conventional eye drops treatment. OBJECTIVE The aim of this article is to develop, optimize and ex vivo-in vivo investigation of brimonidine tartrate in situ gel as compared to marketed eye drops for the treatment of glaucoma. MATERIALS AND METHODS The effect of independent variables, namely concentrations of polymers, on various dependent variables like viscosity at physiological pH and in vitro drug release were studied by using 32 factorial design. Further the optimized formulation was characterized for ex vivo and in vivo study. RESULTS AND DISCUSSION Experimental data demonstrated that optimized in situ gel formulation (F8) showed in vitro-ex vivo sustained release profile with polymer composites carbopol 974P and HPMC K4M. After 5 h of ex vivo transcorneal permeation study, the amount recovered from the corneal surface on the donor chamber 12.40% (124 ug) and the amount collected from the receptor chamber 76.8% (760 ug) of the initial dose 1 mg. The total amount recovered from the permeation experiment was 89.2%. Bioadhesive carbopol 974P and viscosity HPMC K4M composites optimized formulation (F 8) produce greater influence on the duration of drug action and improved intraocular pressure reduction activity as compared to marketed eye drop solution in in vivo study. CONCLUSION The developed in situ gelling system as a promising ophthalmic formulation to prolong the drug lowering effect on the intraocular pressure.
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Affiliation(s)
- Rohan K Barse
- a School of Pharmaceutical Sciences , Jaipur National University , Jaipur , India.,b Department of Pharmaceutics , STES's Sinhgad Institute of Pharmacy (Affiliated to Savitribai Phule Pune University) , Pune , India
| | - Amol A Tagalpallewar
- b Department of Pharmaceutics , STES's Sinhgad Institute of Pharmacy (Affiliated to Savitribai Phule Pune University) , Pune , India
| | - Chandrakant R Kokare
- b Department of Pharmaceutics , STES's Sinhgad Institute of Pharmacy (Affiliated to Savitribai Phule Pune University) , Pune , India
| | - Jaya P Sharma
- a School of Pharmaceutical Sciences , Jaipur National University , Jaipur , India
| | - Pankaj K Sharma
- a School of Pharmaceutical Sciences , Jaipur National University , Jaipur , India
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Delivery of Riboflavin-5'-Monophosphate Into the Cornea: Can Liposomes Provide Any Enhancement Effects? J Pharm Sci 2017; 106:3041-3049. [PMID: 28551428 DOI: 10.1016/j.xphs.2017.05.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 04/24/2017] [Accepted: 05/08/2017] [Indexed: 11/20/2022]
Abstract
Keratoconus is a progressive condition caused by the thinning of the cornea, which eventually deforms the front surface of the eye into a cone shape leading to ghosting, multiple images, glare, and several other vision problems. Currently, keratoconus is treated with UV-induced riboflavin (Rb)-mediated collagen cross-linking, which requires a physical removal of the corneal epithelium under topical anesthesia. This study reports the penetration of Rb and its more water-soluble form, riboflavin-5'-monophosphate (RbP), into the bovine cornea ex vivo. Using ex vivo bovine corneal tissues and 0.8 mg/mL drug solutions in phosphate buffer, it was established that RbP penetration into the cornea within 3 h of diffusion experiment was greater (17.3 ± 0.8 μg) compared with Rb (10.4 ± 4.2 μg). In the cornea, RbP was found to convert to Rb, which is mediated with enzymes present in this tissue. Several formulations including the conventional and propylene glycol-containing liposomes with encapsulated RbP have been developed, and their effect on the drug penetration into the bovine cornea was evaluated. Encapsulation of RbP into the liposomes did not provide any statistically significant improvement in the penetration of RbP into the cornea.
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Faber K, Zorzi GK, Brazil NT, Rott MB, Teixeira HF. siRNA-loaded liposomes: Inhibition of encystment of Acanthamoeba
and toxicity on the eye surface. Chem Biol Drug Des 2017; 90:406-416. [DOI: 10.1111/cbdd.12958] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 12/23/2016] [Accepted: 01/03/2017] [Indexed: 01/20/2023]
Affiliation(s)
- Kathrin Faber
- Graduate Program in Pharmaceutical Sciences; School of Pharmacy; Federal University of Rio Grande do Sul; Porto Alegre Brazil
- Institute of Pharmacology and Toxicology; Universitätsmedizin Berlin; Berlin Germany
| | - Giovanni K. Zorzi
- Graduate Program in Pharmaceutical Sciences; School of Pharmacy; Federal University of Rio Grande do Sul; Porto Alegre Brazil
| | - Nathalya T. Brazil
- Graduate Program in Pharmaceutical Sciences; School of Pharmacy; Federal University of Rio Grande do Sul; Porto Alegre Brazil
| | - Marilise B. Rott
- Graduate Program of Agricultural and Environmental Microbiology; Institute of Basic Health Sciences; Porto Alegre Brazil
| | - Helder F. Teixeira
- Graduate Program in Pharmaceutical Sciences; School of Pharmacy; Federal University of Rio Grande do Sul; Porto Alegre Brazil
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Bioadhesive chitosan-loaded liposomes: A more efficient and higher permeable ocular delivery platform for timolol maleate. Int J Biol Macromol 2016; 94:355-363. [PMID: 27760378 DOI: 10.1016/j.ijbiomac.2016.10.035] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 09/30/2016] [Accepted: 10/14/2016] [Indexed: 01/02/2023]
Abstract
The aim of this study was to develop and characterize a novel colloidal system, namely, timolol maleate chitosan coated liposomes (TM-CHL) to enhance the ocular permeation, precorneal residence time and bioavailability. The resulting TM-CHL was the most promising formulation with a mean particle size of 150.7nm and an EE% of 75.83±1.61%. In vitro release of the TM-CHL showed an extended drug release profile. The TM-CHL exhibited significant mucin adhesion and compared with commercial eye drops, TM-CHL produced a 3.18-fold increase in the apparent permeability coefficient (Papp), resulting in a significant enhancement of corneal permeation. In addition, the gamma scintigraphic study and the pharmacokinetic study showed that TM-CHL could be retained at the corneal surface for longer time compared with eye drops. The ocular irritation study indicated that the developed liposomes produced no significant irritant effects. Furthermore, pharmacodynamics results showed that the maximum intraocular pressure(IOP) produced by TM-CHL was (19.67±1.14) mmHg compared with the (23.80±1.49) mmHg for TM eye drops, revealing that TM-CHL was more effective in reducing the IOP. These results demonstrate that CHL is a potentially useful carrier for ocular drug delivery, which could improve the efficacy of TM.
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Bunker A, Magarkar A, Viitala T. Rational design of liposomal drug delivery systems, a review: Combined experimental and computational studies of lipid membranes, liposomes and their PEGylation. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2016; 1858:2334-2352. [DOI: 10.1016/j.bbamem.2016.02.025] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 02/09/2016] [Accepted: 02/10/2016] [Indexed: 01/22/2023]
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Almeida H, Lobão P, Frigerio C, Fonseca J, Silva R, Quaresma P, Lobo JMS, Amaral MH. Development of mucoadhesive and thermosensitive eyedrops to improve the ophthalmic bioavailability of ibuprofen. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2016.04.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Zeng W, Li Q, Wan T, Liu C, Pan W, Wu Z, Zhang G, Pan J, Qin M, Lin Y, Wu C, Xu Y. Hyaluronic acid-coated niosomes facilitate tacrolimus ocular delivery: Mucoadhesion, precorneal retention, aqueous humor pharmacokinetics, and transcorneal permeability. Colloids Surf B Biointerfaces 2016; 141:28-35. [PMID: 26820107 DOI: 10.1016/j.colsurfb.2016.01.014] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Revised: 01/06/2016] [Accepted: 01/06/2016] [Indexed: 01/01/2023]
Abstract
Tacrolimus (FK506) was used to prevent corneal allograft rejection in patients who were resistant to steroids and cyclosporine. However, the formulation for FK506 ocular delivery remained a challenge due to the drug's high hydrophobicity, high molecular weight, and eye's physiological and anatomical constraints. The aim of this project is to develop an ocular delivery system for FK506 based on a combined strategy of niosomes and mucoadhesive hyaluronic acid (HA), i.e., FK506HA-coated niosomes, which exploits virtues of both niosomes and HA to synergistically improve ophthalmic bioavailability. The FK506HA-coated niosomes were characterized with particle size, zeta potential, and rheology behavior. Mucoadhesion of FK506HA-coated niosomes to mucin was investigated through surface plasmon resonance in comparison with non-coated niosomes and HA solution. The results showed that niosomes possessed adhesion to mucin, and HA coating enhanced the adhesion. The in vivo precorneal retention was evaluated in rabbit, and the results showed that HA-coated niosomes prolonged the residence of FK506 significantly in comparison with non-coated niosomes or suspension. Aqueous humor pharmacokinetics test showed that area under curve of HA-coated niosomes was 2.3-fold and 1.2-fold as that of suspension and non-coated niosomes, respectively. Moreover, the synergetic corneal permeability enhancement of the hybrid delivery system on FK506 was visualized and confirmed by confocal laser scanning microscope. Overall, the results indicated that the hybrid system facilitated FK506 ocular delivery on mucoadhesion, precorneal retention, aqueous humor pharmacokinetics and transcorneal permeability. Therefore, HA-coated niosomes may be a promising approach for ocular targeting delivery of FK506.
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Affiliation(s)
- Weidong Zeng
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Qi Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Tao Wan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Cui Liu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Wenhui Pan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Zushuai Wu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Guoguang Zhang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Jingtong Pan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Mengyao Qin
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Yuanyuan Lin
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Chuanbin Wu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Yuehong Xu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
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Linares-Alba MA, Gómez-Guajardo MB, Fonzar JF, Brooks DE, García-Sánchez GA, Bernad-Bernad MJ. Preformulation Studies of a Liposomal Formulation Containing Sirolimus for the Treatment of Dry Eye Disease. J Ocul Pharmacol Ther 2016; 32:11-22. [PMID: 26469946 PMCID: PMC4742995 DOI: 10.1089/jop.2015.0032] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 09/15/2015] [Indexed: 12/23/2022] Open
Abstract
PURPOSE The aim of this study was to develop and characterize a liposomal product containing sirolimus to be administered subconjunctivally for the treatment of nonresponsive keratoconjunctivitis sicca (KCS) or dry eye. METHODS Formulations were prepared using an ethanol injection method and an adaptation of the heating method in pursuance of the most suitable methodology for future industrial production. Liposomes were loaded with either a high dose of 1 mg/mL of sirolimus or a less toxic dose of 0.4 mg/mL. The effects of critical process and formulation parameters were investigated. Liposomes were characterized in terms of size, zeta potential, polydispersity, differential scanning calorimetry, morphology, entrapment efficiency, phospholipid content, thermal stability, and sterility. The formulation was evaluated clinically in dogs with spontaneous KCS. RESULTS Sterile liposomal dispersions with sizes ranging from 140 to 211 nm, were successfully obtained. High entrapment efficiency of 93%-98% was achieved. The heating method allowed an easier production of liposomes with high entrapment efficiency, to significantly shorten production time and the elimination of the use of alcohol. The poor stability of the obtained liposomes in aqueous dispersion made the inclusion of a lyophilization step necessary to the manufacturing process. In vivo testing of the liposomal sirolimus formulations in the spontaneous KCS dog model have produced promising results, particularly with a sirolimus dose of 1 mg/mL, indicating the need for further development and study of proposed formulations in the treatment of canine KCS. Clinical improvement in tear production in dogs with spontaneous KCS treated with the 1 mg/mL dose product was observed. CONCLUSIONS The heating method allowed easier production of high entrapment efficiency liposomes to significantly shorten production time and the elimination of the use of alcohol. Tear production was increased in dogs administered with the formulation.
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Affiliation(s)
| | | | - Joice Furtado Fonzar
- Faculty of Veterinary Medicine, Sao Paulo State University, Botucatu, SP, Brazil
| | - Dennis E. Brooks
- College of Veterinary Medicine, University of Florida, Gainesville, Florida
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Almeida H, Lobão P, Frigerio C, Fonseca J, Silva R, Sousa Lobo JM, Amaral MH. Preparation, characterization and biocompatibility studies of thermoresponsive eyedrops based on the combination of nanostructured lipid carriers (NLC) and the polymer Pluronic F-127 for controlled delivery of ibuprofen. Pharm Dev Technol 2015; 22:336-349. [PMID: 28240141 DOI: 10.3109/10837450.2015.1125922] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
CONTEXT Nanostructured lipid carrier (NLC) dispersions present low viscosity and poor mucoadhesive properties, which reduce the pre-corneal residence time and consequently, the bioavailability of ocular drugs. OBJECTIVE The aim of this study was to prepare thermoresponsive eyedrops based on the combination of lipid nanoparticles and a thermoresponsive polymer with mucomimetic properties (Pluronic® F-127). MATERIALS AND METHODS NLCi dispersions were prepared based on the melt-emulsification and ultrasonication technique. Physicochemical and morphological characteristics of the colloidal dispersions were evaluated. The formulation was also investigated for potential cytotoxicity in Y-79 human retinoblastoma cells and the in vitro drug release profile of the ibuprofen was determined. RESULTS NLCi showed a Z-average below 200 nm, a highly positive zeta potential and an efficiency of encapsulation (EE) of ∼90%. The gelification of the NLCi dispersion with 15% (w/w) Pluronic® F-127 did not cause significant changes to the physicochemical properties. The potential NLC-induced cytotoxicity was evaluated by the Alamar Blue reduction assay in Y-79 cells, and no relevant cytotoxicity was observed after exposure to 0-100 µg/mL NLC for up to 72 hours. The optimized formulations showed a sustained release of ibuprofen over several hours. DISCUSSION AND CONCLUSION The strategy proposed in this work can be successfully used to increase the bioavailability and the therapeutic efficacy of conventional eyedrops.
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Affiliation(s)
- Hugo Almeida
- a Laboratory of Pharmaceutical Technology, Department of Drug Sciences , Faculty of Pharmacy, Research Centre for Pharmaceutical Sciences, University of Porto , Porto , Portugal
| | - Paulo Lobão
- a Laboratory of Pharmaceutical Technology, Department of Drug Sciences , Faculty of Pharmacy, Research Centre for Pharmaceutical Sciences, University of Porto , Porto , Portugal
| | - Christian Frigerio
- b Department of Chemistry and Biochemistry , Faculty of Sciences, University of Porto , Porto , Portugal.,c Laboratori Derivati Organici , Milan , Italy , and
| | - Joel Fonseca
- a Laboratory of Pharmaceutical Technology, Department of Drug Sciences , Faculty of Pharmacy, Research Centre for Pharmaceutical Sciences, University of Porto , Porto , Portugal
| | - Renata Silva
- d UCIBIO-REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences , Faculty of Pharmacy, University of Porto , Porto , Portugal
| | - José Manuel Sousa Lobo
- a Laboratory of Pharmaceutical Technology, Department of Drug Sciences , Faculty of Pharmacy, Research Centre for Pharmaceutical Sciences, University of Porto , Porto , Portugal
| | - Maria Helena Amaral
- a Laboratory of Pharmaceutical Technology, Department of Drug Sciences , Faculty of Pharmacy, Research Centre for Pharmaceutical Sciences, University of Porto , Porto , Portugal
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Delplace V, Payne S, Shoichet M. Delivery strategies for treatment of age-related ocular diseases: From a biological understanding to biomaterial solutions. J Control Release 2015; 219:652-668. [PMID: 26435454 DOI: 10.1016/j.jconrel.2015.09.065] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 09/28/2015] [Accepted: 09/29/2015] [Indexed: 12/24/2022]
Abstract
Age-related ocular diseases, such as age-related macular degeneration (AMD), diabetic retinopathy, and glaucoma, result in life-long functional deficits and enormous global health care costs. As the worldwide population ages, vision loss has become a major concern for both economic and human health reasons. Due to recent research into biomaterials and nanotechnology major advances have been gained in the field of ocular delivery. This review provides a summary and discussion of the most recent strategies employed for the delivery of both drugs and cells to the eye to treat a variety of age-related diseases. It emphasizes the current challenges and limitations to ocular delivery and how the use of innovative materials can overcome these issues and ultimately provide treatment for age-related degeneration and regeneration of lost tissues. This review also provides critical considerations and an outlook for future studies in the field of ophthalmic delivery.
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Affiliation(s)
- Vianney Delplace
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada; Institute of Biomaterials and Biomedical Engineering, 164 College Street, Toronto, ON M5S 3G9, Canada
| | - Samantha Payne
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada; Institute of Biomaterials and Biomedical Engineering, 164 College Street, Toronto, ON M5S 3G9, Canada
| | - Molly Shoichet
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada; Institute of Biomaterials and Biomedical Engineering, 164 College Street, Toronto, ON M5S 3G9, Canada.
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Evaluation of gatifloxacin pluronic micelles and development of its formulation for ocular delivery. Drug Deliv Transl Res 2015; 4:334-43. [PMID: 25787066 DOI: 10.1007/s13346-014-0194-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The purpose of the present study was to enhance the solubility of gatifloxacin by developing self-assembling pluronic micelles of gatifloxacin for ocular delivery, to overcome the problem of poor bioavailability and therefore lesser therapeutic response exhibited by conventional ophthalmic solutions of the drug. Gatifloxacin was loaded in micelles by solid dispersion method using Pluronic F127 and evaluated for particle size, drug loading, loading efficiency, in vitro transcorneal permeation study, in vitro drug release, solubility studies, microbiological studies, ex vivo mucoadhesive strength, and ocular safety studies. The drug loading and drug loading efficiency studies revealed that gatifloxacin/Pluronic F127 ratio of 0.25/2.52 g offered good drug loading (9.96 %), high loading efficiency (90 %), and acceptable particle size of 176 nm (polydispersity index 0.345). Hen's egg test chorioallantoic membrane (HET-CAM) assay with 0 score in 8 h and ocular safety test with score of 2 indicate the nonirritant property of the developed pluronic micelles. In vitro transcorneal permeation studies through excised goat cornea indicated increase in ocular availability with no corneal damage. In vitro drug release data of optimized formulation provided sustained release over a period of 8 h. Optimized formulation was found to possess acceptable transcorneal permeation and antimicrobial efficacy when compared to marketed eye drops. The solubility studies of gatifloxacin from these lyophilized pluronic micelles revealed 18.67-fold increase in comparison to gatifloxacin suspension in water. The pluronic micelles could enhance ocular bioavailability of gatifloxacin, prolong its residence time in the eyes, and may lead to reduced instillation frequency, thereby resulting in better patient compliance.
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Dong Y, Dong P, Huang D, Mei L, Xia Y, Wang Z, Pan X, Li G, Wu C. Fabrication and characterization of silk fibroin-coated liposomes for ocular drug delivery. Eur J Pharm Biopharm 2015; 91:82-90. [DOI: 10.1016/j.ejpb.2015.01.018] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 01/20/2015] [Accepted: 01/22/2015] [Indexed: 10/24/2022]
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A Comprehensive Review on Dry Eye Disease: Diagnosis, Medical Management, Recent Developments, and Future Challenges. ACTA ACUST UNITED AC 2015. [DOI: 10.1155/2015/704946] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Dry eye syndrome (DES) or keratoconjunctivitis sicca (KCS) is a common disorder of the tear film caused by decreased tear production or increased evaporation and manifests with a wide variety of signs and symptoms. The present review from interpretation of the literature gives detailed information on the prevalence, definition, causes, diagnostic tests, and medical management of dry eye disease. A number of systems contribute to the physiological integrity of the ocular surface and disruption of system may or may not produce symptoms. Therefore accurate diagnosis of dry eyes with no or minimal disruption of physiological function is necessary. The paper also discusses different colloidal drug delivery systems and current challenges in the development of topical ophthalmic drug delivery systems for treatment of KCS. Due to the wide prevalence and number of factors involved, newer, more sensitive diagnostic techniques and novel therapeutic agents have been developed to provide ocular delivery systems with high therapeutic efficacy. The aim of this review is to provide awareness among the patients, health care professionals, and researchers about diagnosis and treatment of KCS and recent developments and future challenges in management of dry eye disease.
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Yu S, Wang QM, Wang X, Liu D, Zhang W, Ye T, Yang X, Pan W. Liposome incorporated ion sensitive in situ gels for opthalmic delivery of timolol maleate. Int J Pharm 2015; 480:128-36. [PMID: 25615987 DOI: 10.1016/j.ijpharm.2015.01.032] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 12/31/2014] [Accepted: 01/18/2015] [Indexed: 12/30/2022]
Abstract
This study was aimed to design a liposomal based ion-sensitive in situ ophthalmic delivery system of timolol maleate (TM). The TM liposome was produced by the reverse evaporation technique coupled with pH-gradients method (REVPR), and then was incorporated into deacetylated gellan gum gels. The TM liposome was demonstrated to be a round and uniform shape in TEM pictures. Compared with the TM eye drops, the TM liposome produced a 1.93 folds increase in apparent permeability coefficients (Papp), resulting in a significant increase of the corneal penetration. The TM-loaded liposome incorporated ion sensitive in situ gels (TM L-ISG) showed longer retention time on corneal surface compared with the eye drops using gamma scintigraphy technology. Draize testing showed that TM L-ISG was non-irritant for ocular tissues. The biggest efficacy of TM L-ISG occurred 30 min after eye drops administration, and efficacy disappeared after 240min. Then, compared with the eye drops, the optimal TM L-ISG could quickly reduce the intraocular pressure and the effective time was significantly longer (P≤0.05). These results indicate that liposome incorporated ion sensitive in situ gels have a potential ability for the opthalmic delivery.
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Affiliation(s)
- Shihui Yu
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Qi-Ming Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, PR China; Department of Pharmaceutics, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China
| | - Xin Wang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Dandan Liu
- School of Biomedical & Chemical Engineering, Liaoning Institute of Science and Technology, Benxi 117004, PR China
| | - Wenji Zhang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Tiantian Ye
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Xinggang Yang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China.
| | - Weisan Pan
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China.
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Galante R, Paradiso P, Moutinho M, Fernandes A, Mata J, Matos A, Colaço R, Saramago B, Serro A. About the effect of eye blinking on drug release from pHEMA-based hydrogels: anin vitrostudy. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2015; 26:235-51. [DOI: 10.1080/09205063.2014.994948] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Valizadeh H, Ghanbarzadeh S, Zakeri-Milani P. Fusogenic liposomal formulation of sirolimus: improvement of drug anti-proliferative effect on human T-cells. Drug Dev Ind Pharm 2014; 41:1558-65. [DOI: 10.3109/03639045.2014.971032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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The immunological enhancement activity of propolis flavonoids liposome in vitro and in vivo. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2014; 2014:483513. [PMID: 25383082 PMCID: PMC4212534 DOI: 10.1155/2014/483513] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 07/01/2014] [Accepted: 09/23/2014] [Indexed: 12/19/2022]
Abstract
The aim of this study was to investigate and assess the effects of propolis flavonoids liposome imposed on the immune system by comparing it to propolis flavonoids and blank liposome. In vitro, the effects of the above drugs on macrophages were assessed by measuring the phagocytic function and cytokine production. In vivo, the immunological adjuvant activity of propolis flavonoids liposome was compared with those of propolis flavonoids and blank liposome. The results showed that in vitro propolis flavonoids liposome can significantly enhance the phagocytic function of macrophages and the release of IL-1β, IL-6, and IFN-γ. In addition, subcutaneous administration of propolis flavonoids liposome with ovalbumin to mice could effectively activate the cellular and humoral immune response, including inducing higher level concentrations of IgG, IL-4, and IFN-γ in serum and the proliferation rates of splenic lymphocytes. These findings provided valuable information regarding the immune modulatory function of propolis flavonoids liposome and indicated the possibility of use of propolis flavonoids liposome as a potential adjuvant.
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Ghanbarzadeh S, Khorrami A, Mohamed Khosroshahi L, Arami S. Fusogenic pH sensitive liposomal formulation for rapamycin: improvement of antiproliferative effect. PHARMACEUTICAL BIOLOGY 2014; 52:848-854. [PMID: 24920230 DOI: 10.3109/13880209.2013.871640] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
CONTEXT Liposomes are increasingly employed to deliver chemotherapeutic agents, antisense oligonucleotides, and genes to various therapeutic targets. OBJECTIVE The present investigation evaluates the ability of fusogenic pH-sensitive liposomes of rapamycin in increasing its antiproliferative effect on human breast adenocarcinoma (MCF-7) cell line. MATERIALS AND METHODS Cholesterol (Chol) and dipalmitoylphosphatidylcholine (DPPC) (DPPC:Chol, 7:3) were used to prepare conventional rapamycin liposomes by a modified ethanol injection method. Dioleoylphosphatidylethanolamine (DOPE) was used to produce fusogenic and pH-sensitive properties in liposomes simultaneously (DPPC:Chol:DOPE, 7:3:4.2). The prepared liposomes were characterized by their size, zeta potential, encapsulation efficiency percent (EE%), and chemical stability during 6 months. The antiproliferative effects of both types of rapamycin liposomes (10, 25, and 50 nmol/L) with optimized formulations were assessed on MCF-7 cells, as cancerous cells, and human umbilical vein endothelial cells (HUVEC), as healthy cells, employing the diphenyltetrazolium bromide (MTT) assay for 72 h. RESULTS AND DISCUSSION The particle size, zeta potential, and EE% of the liposomes were 165 ± 12.3 and 178 ± 15.4 nm, -39.6 ± 1.3, and -41.2 ± 2.1 mV as well as 76.9 ± 2.6 and 76.9 ± 2.6% in conventional and fusogenic pH-sensitive liposomes, respectively. Physicochemical stability results indicated that both liposome types were relatively stable at 4 °C than 25 °C. In vitro antiproliferative evaluation showed that fusogenic pH-sensitive liposomes had better antiproliferative effects on MCF-7 cells compared to the conventional liposomes. Conversely, fusogenic pH-sensitive liposomes had less cytotoxicity on HUVEC cell line.
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Affiliation(s)
- Saeed Ghanbarzadeh
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences , Tabriz , Iran
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Ameeduzzafar, Ali J, Fazil M, Qumbar M, Khan N, Ali A. Colloidal drug delivery system: amplify the ocular delivery. Drug Deliv 2014; 23:710-26. [DOI: 10.3109/10717544.2014.923065] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
- Ameeduzzafar
- Pharmaceutics PhD Lab, Department of Pharmaceutics, Jamia Hamdard, New Delhi, India
| | - Javed Ali
- Pharmaceutics PhD Lab, Department of Pharmaceutics, Jamia Hamdard, New Delhi, India
| | - Mohd Fazil
- Pharmaceutics PhD Lab, Department of Pharmaceutics, Jamia Hamdard, New Delhi, India
| | - Mohd Qumbar
- Pharmaceutics PhD Lab, Department of Pharmaceutics, Jamia Hamdard, New Delhi, India
| | - Nazia Khan
- Pharmaceutics PhD Lab, Department of Pharmaceutics, Jamia Hamdard, New Delhi, India
| | - Asgar Ali
- Pharmaceutics PhD Lab, Department of Pharmaceutics, Jamia Hamdard, New Delhi, India
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Duman G, Aslan İ, Yekta Özer A, İnanç İ, Taralp A. Liposome, gel and lipogelosome formulations containing sodium hyaluronate. J Liposome Res 2014; 24:259-69. [DOI: 10.3109/08982104.2014.907305] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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In situ gelling systems: a strategy to improve the bioavailability of ophthalmic pharmaceutical formulations. Drug Discov Today 2014; 19:400-12. [DOI: 10.1016/j.drudis.2013.10.001] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 08/26/2013] [Accepted: 10/01/2013] [Indexed: 11/24/2022]
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48
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He W, Guo X, Feng M, Mao N. In vitro and in vivo studies on ocular vitamin A palmitate cationic liposomal in situ gels. Int J Pharm 2013. [DOI: 10.1016/j.ijpharm.2013.10.033] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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49
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Abdelkader H, Alani AWG, Alany RG. Recent advances in non-ionic surfactant vesicles (niosomes): self-assembly, fabrication, characterization, drug delivery applications and limitations. Drug Deliv 2013; 21:87-100. [DOI: 10.3109/10717544.2013.838077] [Citation(s) in RCA: 165] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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50
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Wu W, Li J, Wu L, Wang B, Wang Z, Xu Q, Xin H. Ophthalmic delivery of brinzolamide by liquid crystalline nanoparticles: in vitro and in vivo evaluation. AAPS PharmSciTech 2013; 14:1063-71. [PMID: 23813437 DOI: 10.1208/s12249-013-9997-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Accepted: 06/11/2013] [Indexed: 11/30/2022] Open
Abstract
Brinzolamide (BLZ) is a drug used to treat glaucoma; however, its use is restricted due to some unwanted adverse events. The goal of this study was to develop BLZ-loaded liquid crystalline nanoparticles (BLZ LCNPs) and to figure out the possibility of LCNPs as a new therapeutic system for glaucoma. BLZ LCNPs were produced by a modified emulsification method and their physicochemical aspects were estimated. In vitro release study revealed BLZ LCNPs displayed to some extent prolonged drug release behavior in contrast to that of BLZ commercial product (Azopt®). The ex vivo apparent permeability coefficient of BLZ LCNP systems demonstrated a 3.47-fold increase compared with that of Azopt®. The pharmacodynamics was checked over by calculating the percentage fall in intraocular pressure and the pharmacodynamic test showed that BLZ LCNPs had better therapeutic potential than Azopt®. Furthermore, the in vivo ophthalmic irritation was evaluated by Draize test. In conclusion, BLZ LCNPs would be a promising delivery system used for the treatment of glaucoma, with advantages such as lower doses but maintaining the effectiveness, better ocular bioavailability, and patient compliance compared with Azopt®.
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