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Villapiano F, Silvestri T, Lo Gatto C, Aleo D, Campani V, Graziano SF, Giancola C, D'Aria F, De Rosa G, Biondi M, Mayol L. Thermosensitive In Situ Gelling Poloxamers/Hyaluronic Acid Gels for Hydrocortisone Ocular Delivery. Gels 2024; 10:193. [PMID: 38534611 DOI: 10.3390/gels10030193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 03/06/2024] [Accepted: 03/09/2024] [Indexed: 03/28/2024] Open
Abstract
This study endeavored to overcome the physiological barriers hindering optimal bioavailability in ophthalmic therapeutics by devising drug delivery platforms that allow therapeutically effective drug concentrations in ocular tissues for prolonged times. Thermosensitive drug delivery platforms were formulated by blending poloxamers (F68 and F127) with low-molecular-weight hyaluronic acid (HA) in various concentrations and loaded with hydrocortisone (HC). Among the formulations examined, only three were deemed suitable based on their desirable gelling properties at a temperature close to the eye's surface conditions while also ensuring minimal gelation time for swift ocular application. Rheological analyses unveiled the ability of the formulations to develop gels at suitable temperatures, elucidating the gel-like characteristics around the physiological temperature essential for sustained drug release. The differential scanning calorimetry findings elucidated intricate hydrogel-water interactions, indicating that HA affects the water-polymer interactions within the gel by increasing the platform hydrophilicity. Also, in vitro drug release studies demonstrated significant hydrocortisone release within 8 h, governed by an anomalous transport mechanism, prompting further investigation for optimized release kinetics. The produced platforms offer promising prospects for efficacious ocular drug delivery, addressing pivotal challenges in ocular therapeutics and heralding future advancements in the domain.
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Affiliation(s)
- Fabrizio Villapiano
- Department of Pharmacy, University of Naples Federico II, D. Montesano St. 49, 80131 Naples, Italy
| | - Teresa Silvestri
- Department of Pharmacy, University of Naples Federico II, D. Montesano St. 49, 80131 Naples, Italy
| | - Camilla Lo Gatto
- Department of Pharmacy, University of Naples Federico II, D. Montesano St. 49, 80131 Naples, Italy
| | - Danilo Aleo
- Medivis Srl, Carnazza St. 34/C, 95030 Tremestieri Etneo, Catania, Italy
| | - Virginia Campani
- Department of Pharmacy, University of Naples Federico II, D. Montesano St. 49, 80131 Naples, Italy
| | - Sossio Fabio Graziano
- Department of Pharmacy, University of Naples Federico II, D. Montesano St. 49, 80131 Naples, Italy
| | - Concetta Giancola
- Department of Pharmacy, University of Naples Federico II, D. Montesano St. 49, 80131 Naples, Italy
| | - Federica D'Aria
- Department of Pharmacy, University of Naples Federico II, D. Montesano St. 49, 80131 Naples, Italy
| | - Giuseppe De Rosa
- Department of Pharmacy, University of Naples Federico II, D. Montesano St. 49, 80131 Naples, Italy
| | - Marco Biondi
- Department of Pharmacy, University of Naples Federico II, D. Montesano St. 49, 80131 Naples, Italy
- Interdisciplinary Research Centre on Biomaterials (CRIB), Piazzale Tecchio 80, 80125 Naples, Italy
| | - Laura Mayol
- Interdisciplinary Research Centre on Biomaterials (CRIB), Piazzale Tecchio 80, 80125 Naples, Italy
- Department of Advanced Biomedical Sciences, University of Naples Federico II, S. Pansini St. 5, 80131 Naples, Italy
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Ahmed T, Islam MN, Monalisa R, Ehsan F, Huang SW. Polysaccharides polymers for glaucoma treatment-a review. Eur J Ophthalmol 2024; 34:338-356. [PMID: 37231538 DOI: 10.1177/11206721231178057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
One of the major challenges in preventing glaucoma progression is patient compliance with medication regimens. Since conventional ophthalmic dosage forms have numerous limitations, researchers have been intensively working on developing polymers-based delivery systems for glaucoma drugs. Specifically, research and development efforts have increased using polysaccharide polymers such as sodium alginate, cellulose, β-cyclodextrin, hyaluronic acid, chitosan, pectin, gellan gum, galactomannans for sustained release to the eye to overcome treatment challenges, showing promise in improving drug release and delivery, patient experience, and treatment compliance. In the recent past, multiple research groups have successfully designed sustained drug delivery systems, promoting the efficacy as well as the feasibility of glaucoma drugs with single/combinations of polysaccharides to eliminate the drawbacks associated with the glaucoma treatment. Naturally available polysaccharides, when used as drug vehicles can increase the retention time of eye drops on the ocular surface, leading to improved drug absorption and bioavailability. Additionally, some polysaccharides can form gels or matrices that can release drugs slowly over time, providing sustained drug delivery and reducing the need for frequent dosing. Thus, this review aims to provide an overview of the pre-clinical and clinical studies of polysaccharide polymers applied for glaucoma treatment along with their therapeutic outcomes.
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Affiliation(s)
- Tanvir Ahmed
- Food Engineering & Tea Technology, Shahjalal University of Science & Technology, Sylhet 3114, Bangladesh
| | - Md Nazmul Islam
- Deaprtment of Microbiology, Noakhali Science and Technology University, Noakhali 3814, Bangladesh
| | - Rina Monalisa
- Deaprtment of Microbiology, Noakhali Science and Technology University, Noakhali 3814, Bangladesh
| | - Feroz Ehsan
- Department of Medicine, Aziz Fatimah Hospital, Faisalabad 38000, Pakistan
| | - Shu-Wei Huang
- Department of Orthopedics, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan
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3
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Bhujel B, Oh SH, Kim CM, Yoon YJ, Chung HS, Ye EA, Lee H, Kim JY. Current Advances in Regenerative Strategies for Dry Eye Diseases: A Comprehensive Review. Bioengineering (Basel) 2023; 11:39. [PMID: 38247916 PMCID: PMC10813666 DOI: 10.3390/bioengineering11010039] [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: 11/20/2023] [Revised: 12/17/2023] [Accepted: 12/26/2023] [Indexed: 01/23/2024] Open
Abstract
Dry eye disease (DED) is an emerging health issue affecting millions of individuals annually. Ocular surface disorders, such as DED, are characterized by inflammation triggered by various factors. This condition can lead to tear deficiencies, resulting in the desiccation of the ocular surface, corneal ulceration/perforation, increased susceptibility to infections, and a higher risk of severe visual impairment and blindness. Currently, the clinical management of DED primarily relies on supportive and palliative measures, including the frequent and lifelong use of different lubricating agents. While some advancements like punctal plugs, non-steroidal anti-inflammatory drugs, and salivary gland autografts have been attempted, they have shown limited effectiveness. Recently, there have been promising developments in the treatment of DED, including biomaterials such as nano-systems, hydrogels, and contact lenses for drug delivery, cell-based therapies, biological approaches, and tissue-based regenerative therapy. This article specifically explores the different strategies reported so far for treating DED. The aim is to discuss their potential as long-term cures for DED while also considering the factors that limit their feasibility and effectiveness. These advancements offer hope for more effective and sustainable treatment options in the future.
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Affiliation(s)
| | | | | | | | | | | | | | - Jae-Yong Kim
- Department of Ophthalmology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea; (B.B.); (S.-H.O.); (C.-M.K.); (Y.-J.Y.); (H.-S.C.); (E.-A.Y.); (H.L.)
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4
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Casey-Power S, Vardar C, Ryan R, Behl G, McLoughlin P, Byrne ME, Fitzhenry L. NAD+-associated-hyaluronic acid and poly(L-lysine) polyelectrolyte complexes: An evaluation of their potential for ocular drug delivery. Eur J Pharm Biopharm 2023; 192:62-78. [PMID: 37797681 DOI: 10.1016/j.ejpb.2023.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/20/2023] [Accepted: 10/02/2023] [Indexed: 10/07/2023]
Abstract
This study details the formation and characterisation of a novel nicotinamide adenine dinucleotide (NAD+)-associated polymeric nanoparticle system. The development of a polyelectrolyte complex (PEC) composed of two natural polyelectrolytes, hyaluronic acid and poly(L-lysine), and an evaluation of its suitability for NAD+ ocular delivery, primarily based on its physicochemical properties and in vitro release profile under physiological ocular flow rates, were of key focus. Following optimisation of formulation method conditions such as complexation pH, mode of addition, and charge ratio, the PEC was successfully formulated under mild formulation conditions via polyelectrolyte complexation. With a size of 235.1 ± 19.0 nm, a PDI value of 0.214 ± 0.140, and a zeta potential value of - 38.0 ± 1.1 mV, the chosen PEC, loaded with 430 µg of NAD+ per mg of PEC, exhibited non-Fickian, sustained release at physiological flowrates of 10.9 ± 0.2 mg of NAD+ over 14 h. PECs containing up to 200 µM of NAD+ did not induce any significant cytotoxic effects on an immortalised human corneal epithelial cell line. Using fluorescent labeling, the NAD+-associated PECs demonstrated retention within the corneal epithelium layer of a porcine model up to 6 h post incubation under physiological conditions. A study of the physicochemical behaviour of the PECs, in terms of size, zeta potential and NAD+ complexation in response to environmental stimuli,highlighted the dynamic nature of the PEC matrix and its dependence on both pH and ionic condition. Considering the successful formation of reproducible NAD+-associated PECs with suitable characteristics for ocular drug delivery via an inexpensive formulation method, they provide a promising platform for NAD+ ocular delivery with a strong potential to improve ocular health.
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Affiliation(s)
- Saoirse Casey-Power
- Ocular Therapeutics Research Group, Pharmaceutical and Molecular Biotechnology Research Centre, Waterford Campus, South East Technological University, Waterford X91 K0EK, Ireland.
| | - Camila Vardar
- Department of Biomedical Engineering, Rowan-Virtua School of Translational Biomedical Engineering & Sciences, Rowan University, 201 Mullica Hill Road, Glassboro, NJ 08028, USA.
| | - Richie Ryan
- Ocular Therapeutics Research Group, Pharmaceutical and Molecular Biotechnology Research Centre, Waterford Campus, South East Technological University, Waterford X91 K0EK, Ireland.
| | - Gautam Behl
- EirGen Pharma, UNIT 64/64A, Westside Business Park, Old Kilmeaden Road, Co. Waterford X91 YV67, Ireland.
| | - Peter McLoughlin
- Ocular Therapeutics Research Group, Pharmaceutical and Molecular Biotechnology Research Centre, Waterford Campus, South East Technological University, Waterford X91 K0EK, Ireland.
| | - Mark E Byrne
- Department of Biomedical Engineering, Rowan-Virtua School of Translational Biomedical Engineering & Sciences, Rowan University, 201 Mullica Hill Road, Glassboro, NJ 08028, USA; Department of Chemical Engineering, Rowan University, 201 Mullica Hill Road, Glassboro, NJ 08028, USA.
| | - Laurence Fitzhenry
- Ocular Therapeutics Research Group, Pharmaceutical and Molecular Biotechnology Research Centre, Waterford Campus, South East Technological University, Waterford X91 K0EK, Ireland.
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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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Hosseini MS, Mohseni M, Naseripour M, Mirzaei M, Bagherzadeh K, Alemezadeh SA, Mehravi B. Synthesis and evaluation of modified lens using plasma treatment containing timolol-maleate loaded lauric acid-decorated chitosan-alginate nanoparticles for glaucoma. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2023; 34:1793-1812. [PMID: 36872905 DOI: 10.1080/09205063.2023.2187204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 03/07/2023]
Abstract
Reducing intraocular pressure (IOP) with eye drops is one of the most common ways to control glaucoma. Low bioavailability and high frequency of administration in eye drops are major challenges in ocular pharmacotherapy. Contact lenses have attracted the attention of scientists in recent decades as an alternative method. In this study, with the aim of long-term drug delivery and better patient compatibility, contact lenses with surface modification and nanoparticles were used. In this study, timolol-maleate was loaded into polymeric nanoparticles made of chitosan conjugate with lauric acid and sodium alginate. Then silicon matrix was mixed with a curing agent (10:1), and the suspension of nanoparticles was added to the precursor and cured. Finally, for surface modification, the lenses were irradiated with oxygen plasma at different exposure times (30, 60, and 150 s) and soaked in different BSA concentrations (1, 3, and 5% w/v). The results showed nanoparticles with a size of 50 nm and a spherical shape were synthesized. The best surface modification of the lenses was for 5 (% w/v) albumin concentration and 150 s exposure time, which had the highest increase in hydrophilicity. Drug release from nanoparticles continued for 3 days and this amount increased to 6 days after dispersion in the modified lens matrix. The drug model and kinetic study show the Higuchi model completely supported the release profile. This study represents the novel drug delivery system to control intra-ocular pressure as a candidate platform for glaucoma treatment. Improved compatibility and drug release from the designed contact lenses would prepare new insight into the mentioned disease treatment.
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Affiliation(s)
- Maryam Sadat Hosseini
- Medical Nanotechnology Department, Advanced Technologies Faculty, Iran University of Medical Sciences, Tehran, Iran
| | - Mojdeh Mohseni
- Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Masood Naseripour
- Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Mirzaei
- Iran Ministry of Health and Medical Education, Deputy Ministry for Education, Tehran, Iran
| | - Kowsar Bagherzadeh
- Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran
- Eye Research Center, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | | | - Bita Mehravi
- Medical Nanotechnology Department, Advanced Technologies Faculty, Iran University of Medical Sciences, Tehran, Iran
- Finetech in Medicine Research Center, Iran University of Medical, Tehran, Iran
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7
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Arango D, Cifuentes J, Puentes PR, Beltran T, Bittar A, Ocasión C, Muñoz-Camargo C, Bloch NI, Reyes LH, Cruz JC. Tailoring Magnetite-Nanoparticle-Based Nanocarriers for Gene Delivery: Exploiting CRISPRa Potential in Reducing Conditions. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13111782. [PMID: 37299685 DOI: 10.3390/nano13111782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 05/22/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023]
Abstract
Gene delivery has emerged as a promising alternative to conventional treatment approaches, allowing for the manipulation of gene expression through gene insertion, deletion, or alteration. However, the susceptibility of gene delivery components to degradation and challenges associated with cell penetration necessitate the use of delivery vehicles for effective functional gene delivery. Nanostructured vehicles, such as iron oxide nanoparticles (IONs) including magnetite nanoparticles (MNPs), have demonstrated significant potential for gene delivery applications due to their chemical versatility, biocompatibility, and strong magnetization. In this study, we developed an ION-based delivery vehicle capable of releasing linearized nucleic acids (tDNA) under reducing conditions in various cell cultures. As a proof of concept, we immobilized a CRISPR activation (CRISPRa) sequence to overexpress the pink1 gene on MNPs functionalized with polyethylene glycol (PEG), 3-[(2-aminoethyl)dithio]propionic acid (AEDP), and a translocating protein (OmpA). The nucleic sequence (tDNA) was modified to include a terminal thiol group and was conjugated to AEDP's terminal thiol via a disulfide exchange reaction. Leveraging the natural sensitivity of the disulfide bridge, the cargo was released under reducing conditions. Physicochemical characterizations, including thermogravimetric analysis (TGA) and Fourier-transform infrared (FTIR) spectroscopy, confirmed the correct synthesis and functionalization of the MNP-based delivery carriers. The developed nanocarriers exhibited remarkable biocompatibility, as demonstrated by the hemocompatibility, platelet aggregation, and cytocompatibility assays using primary human astrocytes, rodent astrocytes, and human fibroblast cells. Furthermore, the nanocarriers enabled efficient cargo penetration, uptake, and endosomal escape, with minimal nucleofection. A preliminary functionality test using RT-qPCR revealed that the vehicle facilitated the timely release of CRISPRa vectors, resulting in a remarkable 130-fold overexpression of pink1. We demonstrate the potential of the developed ION-based nanocarrier as a versatile and promising gene delivery vehicle with potential applications in gene therapy. The developed nanocarrier is capable of delivering any nucleic sequence (up to 8.2 kb) once it is thiolated using the methodology explained in this study. To our knowledge, this represents the first MNP-based nanocarrier capable of delivering nucleic sequences under specific reducing conditions while preserving functionality.
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Affiliation(s)
- David Arango
- Department of Biomedical Engineering, Universidad de Los Andes, Bogotá 111711, Colombia
| | - Javier Cifuentes
- Department of Biomedical Engineering, Universidad de Los Andes, Bogotá 111711, Colombia
| | - Paola Ruiz Puentes
- Department of Biomedical Engineering, Universidad de Los Andes, Bogotá 111711, Colombia
| | - Tatiana Beltran
- Department of Biomedical Engineering, Universidad de Los Andes, Bogotá 111711, Colombia
| | - Amaury Bittar
- Department of Biomedical Engineering, Universidad de Los Andes, Bogotá 111711, Colombia
| | - Camila Ocasión
- Department of Chemical and Food Engineering, Universidad de Los Andes, Bogotá 111711, Colombia
| | | | - Natasha I Bloch
- Department of Biomedical Engineering, Universidad de Los Andes, Bogotá 111711, Colombia
| | - Luis H Reyes
- Department of Chemical and Food Engineering, Universidad de Los Andes, Bogotá 111711, Colombia
| | - Juan C Cruz
- Department of Biomedical Engineering, Universidad de Los Andes, Bogotá 111711, Colombia
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Li L, Jia F, Wang Y, Liu J, Tian Y, Sun X, Lei Y, Ji J. Trans-corneal drug delivery strategies in the treatment of ocular diseases. Adv Drug Deliv Rev 2023; 198:114868. [PMID: 37182700 DOI: 10.1016/j.addr.2023.114868] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 04/20/2023] [Accepted: 05/07/2023] [Indexed: 05/16/2023]
Abstract
The cornea is a remarkable tissue that possesses specialized structures designed to safeguard the eye against foreign objects. However, its unique properties also make it challenging to deliver drugs in a non-invasive manner. This review highlights recent advancements in achieving highly efficient drug transport across the cornea, focusing on nanomaterials. We have classified these strategies into three main categories based on their mechanisms and have analyzed their success and limitations in a systematic manner. The purpose of this review is to examine potential general principles that could improve drug penetration through the cornea and other natural barriers in the eye. We hope it will inspire the development of more effective drug delivery systems that can better treat ocular diseases.
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Affiliation(s)
- Liping Li
- Shanghai Key Laboratory of Visual Impairment and Restoration, Key Laboratory of Myopia of Ministry of Health, Eye and ENT Hospital of Fudan University, Shanghai 200031, PR China
| | - Fan Jia
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027 Zhejiang Province, PR China
| | - Youxiang Wang
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027 Zhejiang Province, PR China
| | - Jiamin Liu
- Shanghai Key Laboratory of Visual Impairment and Restoration, Key Laboratory of Myopia of Ministry of Health, Eye and ENT Hospital of Fudan University, Shanghai 200031, PR China
| | - Yi Tian
- Shanghai Key Laboratory of Visual Impairment and Restoration, Key Laboratory of Myopia of Ministry of Health, Eye and ENT Hospital of Fudan University, Shanghai 200031, PR China
| | - Xinghuai Sun
- Shanghai Key Laboratory of Visual Impairment and Restoration, Key Laboratory of Myopia of Ministry of Health, Eye and ENT Hospital of Fudan University, Shanghai 200031, PR China.
| | - Yuan Lei
- Shanghai Key Laboratory of Visual Impairment and Restoration, Key Laboratory of Myopia of Ministry of Health, Eye and ENT Hospital of Fudan University, Shanghai 200031, PR China.
| | - Jian Ji
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027 Zhejiang Province, PR China.
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Wu Y, Tao Q, Xie J, Lu L, Xie X, Zhang Y, Jin Y. Advances in Nanogels for Topical Drug Delivery in Ocular Diseases. Gels 2023; 9:gels9040292. [PMID: 37102904 PMCID: PMC10137933 DOI: 10.3390/gels9040292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 03/23/2023] [Accepted: 03/29/2023] [Indexed: 04/05/2023] Open
Abstract
Nanotechnology has accelerated the development of the pharmaceutical and medical technology fields, and nanogels for ocular applications have proven to be a promising therapeutic strategy. Traditional ocular preparations are restricted by the anatomical and physiological barriers of the eye, resulting in a short retention time and low drug bioavailability, which is a significant challenge for physicians, patients, and pharmacists. Nanogels, however, have the ability to encapsulate drugs within three-dimensional crosslinked polymeric networks and, through specific structural designs and distinct methods of preparation, achieve the controlled and sustained delivery of loaded drugs, increasing patient compliance and therapeutic efficiency. In addition, nanogels have higher drug-loading capacity and biocompatibility than other nanocarriers. In this review, the main focus is on the applications of nanogels for ocular diseases, whose preparations and stimuli-responsive behaviors are briefly described. The current comprehension of topical drug delivery will be improved by focusing on the advances of nanogels in typical ocular diseases, including glaucoma, cataracts, dry eye syndrome, and bacterial keratitis, as well as related drug-loaded contact lenses and natural active substances.
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Affiliation(s)
- Yongkang Wu
- School of Pharmacy, Anhui Medical University, No. 81 Meishan Road, Shushan District, Hefei 230032, China
| | - Qing Tao
- School of Pharmacy, Anhui Medical University, No. 81 Meishan Road, Shushan District, Hefei 230032, China
| | - Jing Xie
- School of Pharmacy, Anhui Medical University, No. 81 Meishan Road, Shushan District, Hefei 230032, China
| | - Lili Lu
- School of Pharmacy, Anhui Medical University, No. 81 Meishan Road, Shushan District, Hefei 230032, China
| | - Xiuli Xie
- School of Pharmacy, Anhui Medical University, No. 81 Meishan Road, Shushan District, Hefei 230032, China
| | - Yang Zhang
- School of Pharmacy, Anhui Medical University, No. 81 Meishan Road, Shushan District, Hefei 230032, China
| | - Yong Jin
- School of Pharmacy, Anhui Medical University, No. 81 Meishan Road, Shushan District, Hefei 230032, China
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10
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Wu KY, Ashkar S, Jain S, Marchand M, Tran SD. Breaking Barriers in Eye Treatment: Polymeric Nano-Based Drug-Delivery System for Anterior Segment Diseases and Glaucoma. Polymers (Basel) 2023; 15:polym15061373. [PMID: 36987154 PMCID: PMC10054733 DOI: 10.3390/polym15061373] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 02/25/2023] [Accepted: 03/06/2023] [Indexed: 03/12/2023] Open
Abstract
The eye has anatomical structures that function as robust static and dynamic barriers, limiting the penetration, residence time, and bioavailability of medications administered topically. The development of polymeric nano-based drug-delivery systems (DDS) could be the solution to these challenges: it can pass through ocular barriers, offering higher bioavailability of administered drugs to targeted tissues that are otherwise inaccessible; it can stay in ocular tissues for longer periods of time, requiring fewer drug administrations; and it can be made up of polymers that are biodegradable and nano-sized, minimizing the undesirable effects of the administered molecules. Therefore, therapeutic innovations in polymeric nano-based DDS have been widely explored for ophthalmic drug-delivery applications. In this review, we will give a comprehensive overview of polymeric nano-based drug-delivery systems (DDS) used in the treatment of ocular diseases. We will then examine the current therapeutic challenges of various ocular diseases and analyze how different types of biopolymers can potentially enhance our therapeutic options. A literature review of the preclinical and clinical studies published between 2017 and 2022 was conducted. Thanks to the advances in polymer science, the ocular DDS has rapidly evolved, showing great promise to help clinicians better manage patients.
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Affiliation(s)
- Kevin Y. Wu
- Department of Surgery, Division of Ophthalmology, University of Sherbrooke, Sherbrooke, QC J1G 2E8, Canada; (K.Y.W.)
| | - Said Ashkar
- Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Shrieda Jain
- Department of Experimental Surgery, McGill University, Montreal, QC H3G 1A4, Canada
| | - Michael Marchand
- Department of Surgery, Division of Ophthalmology, University of Sherbrooke, Sherbrooke, QC J1G 2E8, Canada; (K.Y.W.)
| | - Simon D. Tran
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC H3A 1G1, Canada
- Correspondence:
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Wang C, Pang Y. Nano-based eye drop: Topical and noninvasive therapy for ocular diseases. Adv Drug Deliv Rev 2023; 194:114721. [PMID: 36773886 DOI: 10.1016/j.addr.2023.114721] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/22/2023] [Accepted: 01/25/2023] [Indexed: 02/11/2023]
Abstract
Eye drops are the most accessible therapy for ocular diseases, while inevitably suffering from their lower bioavailability which highly restricts the treatment efficacy. The introduction of nanotechnology has attracted considerable interest as it has advantages over conventional ones such as prolonged ocular surface retention time and enhanced ocular barrier penetrating properties, and achieving higher bioavailability and improved treatment efficacy. This review describes various ocular diseases treated with eye drops as well as the physiological and anatomical ocular barriers faced with through drug administration. It also summarizes the recent advances regarding the utilization of nanotechnology in developing eye drops, and how to optimize the nanocarrier-based ocular drug delivery systems. The prospective future research directions for nano-based eye drops are also discussed here.
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Affiliation(s)
- Chuhan Wang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Yan Pang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China.
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12
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Thacker M, Singh V, Basu S, Singh S. Biomaterials for dry eye disease treatment: Current overview and future perspectives. Exp Eye Res 2023; 226:109339. [PMID: 36470431 DOI: 10.1016/j.exer.2022.109339] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 11/04/2022] [Accepted: 11/27/2022] [Indexed: 12/09/2022]
Abstract
Dry eye disease (DED) is an emerging health problem affecting millions of individuals every year. The current treatments for DED include lubricating eye drops and anti-inflammatory agents. These agents have to be used frequently and contain preservatives, which can damage the ocular surface. A substantially long-acting treatment with better bioavailability on the ocular surface might reduce the frequency of drug use and its side effects. This review summarizes the current state of different biomaterials-nanosystems, hydrogels, and contact lenses used as drug delivery systems in DED. The explored drugs in biomaterial formulation are cyclosporin, ocular lubricants, and topical steroids. Most of the data is from animal models where increased drug delivery and desired therapeutic effects could be obtained; however, trials involving human participants are yet to happen. There is no published study comparing the different types of biomaterials for DED use. Long-term studies evaluating their ocular toxicity and biocompatibility would enhance their transition to human use. Overall they look promising for DED treatment, but they are still in the stage of technological advancement and clinical studies.
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Affiliation(s)
- Minal Thacker
- Brien Holden Center for Eye Research (BHERC), L V Prasad Eye Institute, Hyderabad, 500034, Telangana, India; Centre for Ocular Regeneration, L V Prasad Eye Institute, Hyderabad, 500034, Telangana, India
| | - Vivek Singh
- Brien Holden Center for Eye Research (BHERC), L V Prasad Eye Institute, Hyderabad, 500034, Telangana, India; Centre for Ocular Regeneration, L V Prasad Eye Institute, Hyderabad, 500034, Telangana, India
| | - Sayan Basu
- Brien Holden Center for Eye Research (BHERC), L V Prasad Eye Institute, Hyderabad, 500034, Telangana, India; The Cornea Institute, L V Prasad Eye Institute, Hyderabad, 500034, Telangana, India
| | - Swati Singh
- Centre for Ocular Regeneration, L V Prasad Eye Institute, Hyderabad, 500034, Telangana, India; Ophthalmic Plastic Surgery Services, L V Prasad Eye Institute, Hyderabad, 500034, Telangana, India.
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13
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Belamkar A, Harris A, Zukerman R, Siesky B, Oddone F, Verticchio Vercellin A, Ciulla TA. Sustained release glaucoma therapies: Novel modalities for overcoming key treatment barriers associated with topical medications. Ann Med 2022; 54:343-358. [PMID: 35076329 PMCID: PMC8794062 DOI: 10.1080/07853890.2021.1955146] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Glaucoma is a progressive optic neuropathy and a leading cause of irreversible blindness. The disease has conventionally been characterized by an elevated intraocular pressure (IOP); however, recent research has built the consensus that glaucoma is not only dependent on IOP but rather represents a multifactorial optic neuropathy. Although many risk factors have been identified ranging from demographics to co-morbidities to ocular structural predispositions, IOP is currently the only modifiable risk factor, most often treated by topical IOP-lowering medications. However, topical hypotensive regimens are prone to non-adherence and are largely inefficient, leading to disease progression in spite of treatment. As a result, several companies are developing sustained release (SR) drug delivery systems as alternatives to topical delivery to potentially overcome these barriers. Currently, Bimatoprost SR (DurystaTM) from Allergan plc is the only FDA-approved SR therapy for POAG. Other SR therapies under investigation include: bimatoprost ocular ring (Allergan) (ClinicalTrials.gov identifier: NCT01915940), iDose® (Glaukos Corporation) (NCT03519386), ENV515 (Envisia Therapeutics) (NCT02371746), OTX-TP (Ocular Therapeutix) (NCT02914509), OTX-TIC (Ocular Therapeutix) (NCT04060144), and latanoprost free acid SR (PolyActiva) (NCT04060758). Additionally, a wide variety of technologies for SR therapeutics are under investigation including ocular surface drug delivery systems such as contact lenses and nanotechnology. While challenges remain for SR drug delivery technology in POAG management, this technology may shift treatment paradigms and dramatically improve outcomes.
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Affiliation(s)
- Aditya Belamkar
- Indiana University School of Medicine, Indianapolis, IN, USA
| | - Alon Harris
- Department of Opthalmology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ryan Zukerman
- Department of Opthalmology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Department of Opthalmology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Brent Siesky
- Department of Opthalmology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | | | - Thomas A Ciulla
- Indiana University School of Medicine, Indianapolis, IN, USA.,Vitreoretinal Medicine and Surgery, Midwest Eye Institute, Indianapolis, IN, USA
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Akulo KA, Adali T, Moyo MTG, Bodamyali T. Intravitreal Injectable Hydrogels for Sustained Drug Delivery in Glaucoma Treatment and Therapy. Polymers (Basel) 2022; 14:polym14122359. [PMID: 35745935 PMCID: PMC9230531 DOI: 10.3390/polym14122359] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 05/30/2022] [Accepted: 06/02/2022] [Indexed: 12/11/2022] Open
Abstract
Glaucoma is extensively treated with topical eye drops containing drugs. However, the retention time of the loaded drugs and the in vivo bioavailability of the drugs are highly influenced before reaching the targeted area sufficiently, due to physiological and anatomical barriers of the eye, such as rapid nasolacrimal drainage. Poor intraocular penetration and frequent administration may also cause ocular cytotoxicity. A novel approach to overcome these drawbacks is the use of injectable hydrogels administered intravitreously for sustained drug delivery to the target site. These injectable hydrogels are used as nanocarriers to intimately interact with specific diseased ocular tissues to increase the therapeutic efficacy and drug bioavailability of the anti-glaucomic drugs. The human eye is very delicate, and is sensitive to contact with any foreign body material. However, natural biopolymers are non-reactive, biocompatible, biodegradable, and lack immunogenic and inflammatory responses to the host whenever they are incorporated in drug delivery systems. These favorable biomaterial properties have made them widely applicable in biomedical applications, with minimal adversity. This review highlights the importance of using natural biopolymer-based intravitreal hydrogel drug delivery systems for glaucoma treatment over conventional methods.
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Affiliation(s)
- Kassahun Alula Akulo
- Department of Biomedical Engineering, Faculty of Engineering, Near East University, Mersin 10, Lefkoşa 99138, Turkey; (K.A.A.); (M.T.G.M.)
- Tissue Engineering and Biomaterials Research Center, Near East University, Mersin 10, Lefkoşa 99138, Turkey
| | - Terin Adali
- Department of Biomedical Engineering, Faculty of Engineering, Near East University, Mersin 10, Lefkoşa 99138, Turkey; (K.A.A.); (M.T.G.M.)
- Tissue Engineering and Biomaterials Research Center, Near East University, Mersin 10, Lefkoşa 99138, Turkey
- Nanotechnology Research Center, Sabanci University SUNUM, Istanbul 34956, Turkey
- Correspondence:
| | - Mthabisi Talent George Moyo
- Department of Biomedical Engineering, Faculty of Engineering, Near East University, Mersin 10, Lefkoşa 99138, Turkey; (K.A.A.); (M.T.G.M.)
- Tissue Engineering and Biomaterials Research Center, Near East University, Mersin 10, Lefkoşa 99138, Turkey
| | - Tulin Bodamyali
- Department of Pathology, Faculty of Medicine, Girne American University, Mersin 10, Girne 99428, Turkey;
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15
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Recent progress in colloidal nanocarriers loaded in situ gel in ocular therapeutics. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Manna S, Jana S. Marine Polysaccharides in Tailor- Made Drug Delivery. Curr Pharm Des 2022; 28:1046-1066. [DOI: 10.2174/1381612828666220328122539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 02/11/2022] [Indexed: 01/09/2023]
Abstract
Abstract:
Marine sources have attracted much interest as an emerging source of biomaterials in drug delivery applications. Amongst all other marine biopolymers, polysaccharides have been the mostly investigated class of biomaterials. The low cytotoxic behavior, in combination with the newly explored health benefits of marine polysaccharides has made it one of the prime research areas in the pharmaceutical and biomedical fields. In this review, we focused on all available marine polysaccharides, including their classification based on biological sources. The applications of several marine polysaccharides in recent years for tissue-specific novel drug delivery including gastrointestinal, brain tissue, transdermal, ocular, liver, and lung have also been discussed here. The abundant availability in nature, cost-effective extraction, and purification process along with a favorable biodegradable profile will encourage researchers to continue investigating marine polysaccharides for exploring newer applications in targeting specific delivery of therapeutics.
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Affiliation(s)
- Sreejan Manna
- Department of Pharmaceutical Technology, Brainware University, Barasat, Kolkata, West Bengal -700125, India
| | - Sougata Jana
- Department of Pharmaceutics, Gupta College of Technological Sciences, Ashram More, G.T. Road, Asansol-713301, West Bengal, India
- Department of Health and Family Welfare, Directorate of Health Services, Kolkata, India
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17
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Cáceres-Vélez PR, Hui F, Hercus J, Bui B, Jusuf PR. Restoring the oxidative balance in age-related diseases - An approach in glaucoma. Ageing Res Rev 2022; 75:101572. [PMID: 35065274 DOI: 10.1016/j.arr.2022.101572] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 12/10/2021] [Accepted: 01/18/2022] [Indexed: 02/07/2023]
Abstract
As human life expectancy increases, age-related health issues including neurodegenerative diseases continue to rise. Regardless of genetic or environmental factors, many neurodegenerative conditions share common pathological mechanisms, such as oxidative stress, a hallmark of many age-related health burdens. In this review, we describe oxidative damage and mitochondrial dysfunction in glaucoma, an age-related neurodegenerative eye disease affecting 80 million people worldwide. We consider therapeutic approaches used to counteract oxidative stress in glaucoma, including untapped treatment options such as novel plant-derived antioxidant compounds that can reduce oxidative stress and prevent neuronal loss. We summarize the current pre-clinical models and clinical work exploring the therapeutic potential of a range of candidate plant-derived antioxidant compounds. Finally, we explore advances in drug delivery systems, particular those employing nanotechnology-based carriers which hold significant promise as a carrier for antioxidants to treat age-related disease, thus reviewing the key current state of all of the aspects required towards translation.
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18
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Affiliation(s)
- Aydan Gülsu
- Molecular Biology and Genetics Department Muğla Sitki Kocman University Muğla 48000 Turkey
| | - Büşra Kıllı
- Molecular Biology and Genetics Department Muğla Sitki Kocman University Muğla 48000 Turkey
| | - Mehlika Alper
- Molecular Biology and Genetics Department Muğla Sitki Kocman University Muğla 48000 Turkey
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19
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20
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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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21
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Zoratto N, Forcina L, Matassa R, Mosca L, Familiari G, Musarò A, Mattei M, Coviello T, Di Meo C, Matricardi P. Hyaluronan-Cholesterol Nanogels for the Enhancement of the Ocular Delivery of Therapeutics. Pharmaceutics 2021; 13:pharmaceutics13111781. [PMID: 34834195 PMCID: PMC8619261 DOI: 10.3390/pharmaceutics13111781] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 10/17/2021] [Accepted: 10/22/2021] [Indexed: 12/31/2022] Open
Abstract
The anatomy and physiology of the eye strongly limit the bioavailability of locally administered drugs. The entrapment of therapeutics into nanocarriers represents an effective strategy for the topical treatment of several ocular disorders, as they may protect the embedded molecules, enabling drug residence on the ocular surface and/or its penetration into different ocular compartments. The present work shows the activity of hyaluronan-cholesterol nanogels (NHs) as ocular permeation enhancers. Thanks to their bioadhesive properties, NHs firmly interact with the superficial corneal epithelium, without penetrating the stroma, thus modifying the transcorneal penetration of loaded therapeutics. Ex vivo transcorneal permeation experiments show that the permeation of hydrophilic drugs (i.e., tobramycin and diclofenac sodium salt), loaded in NHs, is significantly enhanced when compared to the free drug solutions. On the other side, the permeation of hydrophobic drugs (i.e., dexamethasone and piroxicam) is strongly dependent on the water solubility of the entrapped molecules. The obtained results suggest that NHs formulations can improve the ocular bioavailability of the instilled drugs by increasing their preocular retention time (hydrophobic drugs) or facilitating their permeation (hydrophilic drugs), thus opening the route for the application of HA-based NHs in the treatment of both anterior and posterior eye segment diseases.
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Affiliation(s)
- Nicole Zoratto
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, 00185 Roma, Italy; (N.Z.); (T.C.); (C.D.M.)
| | - Laura Forcina
- DAHFMO-Unit of Histology and Medical Embryology, Sapienza University of Rome, Via A. Scarpa, 14, 00161 Rome, Italy; (L.F.); (A.M.)
| | - Roberto Matassa
- Department of Anatomical, Histological, Forensic and Orthopaedic Sciences, Section of Human Anatomy, Sapienza University of Rome, Via A. Borelli 50, 00161 Rome, Italy; (R.M.); (G.F.)
| | - Luciana Mosca
- Department of Biochemical Sciences “A. Rossi Fanelli”, Sapienza University of Rome, 00185 Roma, Italy;
| | - Giuseppe Familiari
- Department of Anatomical, Histological, Forensic and Orthopaedic Sciences, Section of Human Anatomy, Sapienza University of Rome, Via A. Borelli 50, 00161 Rome, Italy; (R.M.); (G.F.)
| | - Antonio Musarò
- DAHFMO-Unit of Histology and Medical Embryology, Sapienza University of Rome, Via A. Scarpa, 14, 00161 Rome, Italy; (L.F.); (A.M.)
| | - Maurizio Mattei
- Interdepartmental Center for Comparative Medicine, Alternative Techniques and Aquaculture (CIMETA), University of Rome “Tor Vergata”, Via Montpellier 1, 00133 Rome, Italy;
- Department of Biology, University of Rome “Tor Vergata”, Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Tommasina Coviello
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, 00185 Roma, Italy; (N.Z.); (T.C.); (C.D.M.)
| | - Chiara Di Meo
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, 00185 Roma, Italy; (N.Z.); (T.C.); (C.D.M.)
| | - Pietro Matricardi
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, 00185 Roma, Italy; (N.Z.); (T.C.); (C.D.M.)
- Correspondence:
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22
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Wang F, Song Y, Huang J, Wu B, Wang Y, Pang Y, Zhang W, Zhu Z, Ma F, Wang X, Zhang X. Lollipop-Inspired Multilayered Drug Delivery Hydrogel for Dual Effective, Long-Term, and NIR-Defined Glaucoma Treatment. Macromol Biosci 2021; 21:e2100202. [PMID: 34405963 DOI: 10.1002/mabi.202100202] [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] [Received: 05/12/2021] [Revised: 08/08/2021] [Indexed: 12/27/2022]
Abstract
Glaucoma is an ophthalmic disease that is characterized by elevated intraocular pressure (IOP). Eye drops are the preferred choice to reduce IOP for the treatment of glaucoma. However, the bioavailability of eye drops is low (<5%). Their long-term frequent administration cannot ensure patient compliance, which is the main reason for treatment failure. Inspired by lollipop, herein, a multilayered sodium alginate-chitosan (SA-CS) hydrogel ball (HB) decorated by zinc oxide-modified biochar (ZnO-BC) is developed as a new drug delivery system. The multilayer structure encapsulate timolol maleate (TM) and levofloxacin inside the different layers to realize the sustained release of drugs, which can control ocular hypertension and prevent infection effectively. The results show that the release of TM can be sustained in vitro for longer than 2 weeks. Moreover, IOP is also effectively reduced in vivo. Meanwhile, the photothermal conversion activity of ZnO-BC can regulate drug release on demand after stimulation by near-infrared irradiation. More importantly, the designed HB also shows good biocompatibility and antibacterial properties in vitro and in vivo. In summary, ZnO-BC-SA-CS HB can effectively reduce IOP and is expected to replace the classical tedious eye drop strategy, having potential utilization value in the treatment of glaucoma.
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Affiliation(s)
- Feifei Wang
- Jiangxi Provincial Key Laboratory for Ophthalmology, Jiangxi Research Institute of Ophthalmology and Visual Science, Affiliated Eye Hospital of Nanchang University, Nanchang, 330006, P. R. China
| | - Yuning Song
- Jiangxi Provincial Key Laboratory for Ophthalmology, Jiangxi Research Institute of Ophthalmology and Visual Science, Affiliated Eye Hospital of Nanchang University, Nanchang, 330006, P. R. China
| | - Jinlong Huang
- College of Medicine, Nanchang University, Nanchang, 330088, P. R. China
| | - Bingxuan Wu
- College of Medicine, Nanchang University, Nanchang, 330088, P. R. China
| | - Yanan Wang
- Jiangxi Provincial Key Laboratory for Ophthalmology, Jiangxi Research Institute of Ophthalmology and Visual Science, Affiliated Eye Hospital of Nanchang University, Nanchang, 330006, P. R. China
| | - Yulian Pang
- Jiangxi Provincial Key Laboratory for Ophthalmology, Jiangxi Research Institute of Ophthalmology and Visual Science, Affiliated Eye Hospital of Nanchang University, Nanchang, 330006, P. R. China
| | - Wei Zhang
- College of Chemistry, Nanchang University, Nanchang, 330088, P. R. China
| | - Zhenling Zhu
- College of Chemistry, Nanchang University, Nanchang, 330088, P. R. China
| | - Fangli Ma
- Jiangxi Provincial Key Laboratory for Ophthalmology, Jiangxi Research Institute of Ophthalmology and Visual Science, Affiliated Eye Hospital of Nanchang University, Nanchang, 330006, P. R. China
| | - Xiaolei Wang
- College of Chemistry, Nanchang University, Nanchang, 330088, P. R. China.,Institute of Translational Medicine, Nanchang University, Nanchang, 330088, P. R. China
| | - Xu Zhang
- Jiangxi Provincial Key Laboratory for Ophthalmology, Jiangxi Research Institute of Ophthalmology and Visual Science, Affiliated Eye Hospital of Nanchang University, Nanchang, 330006, P. R. China
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23
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Mohseni M, Ramazani Saadatabadi A. Highly conductive self-electrical stimuli core-shell conduit based on PVDF-chitosan–gelatin filled with in-situ gellan gum as a possible candidate for nerve regeneration: a rheological, electrical, and structural study. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-02012-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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24
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Dave RS, Goostrey TC, Ziolkowska M, Czerny-Holownia S, Hoare T, Sheardown H. Ocular drug delivery to the anterior segment using nanocarriers: A mucoadhesive/mucopenetrative perspective. J Control Release 2021; 336:71-88. [PMID: 34119558 DOI: 10.1016/j.jconrel.2021.06.011] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 12/16/2022]
Abstract
There is a growing demand for effective treatments for ocular conditions that improve patient compliance and reduce side-effects. While methods such as implants and injections have proven effective, topical administration remains the method of choice for the delivery of therapeutics to the anterior segment of the eye. However, topical administration suffers from multiple drawbacks including low bioavailability of the target therapeutic, systemic toxicity, and the requirement for high therapeutic doses due to the effective clearance mechanisms that exist in the eye. Nanoparticles that have tunable mucoadhesion and/or mucopenetration offer outstanding potential to overcome the anatomical and physiological barriers present to improve ocular bioavailability, reduce toxicity, and increase ocular retention, among other benefits. The current review highlights recent advances in the field of developing nanocarriers with tunable mucoadhesion and mucopenetration for drug delivery to the eye.
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Affiliation(s)
- Ridhdhi S Dave
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L8, Canada
| | - Taylor C Goostrey
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L8, Canada
| | - Maya Ziolkowska
- Department of Integrated Biomedical Engineering & Health Sciences, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L8, Canada
| | - Sofia Czerny-Holownia
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L8, Canada
| | - Todd Hoare
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L8, Canada
| | - Heather Sheardown
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L8, Canada.
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25
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Mohseni M, Delavar F, Rezaei H. The piezoelectric gel-fiber-particle substrate containing short PVDF-chitosan-gelatin nanofibers and mesoporous silica nanoparticles with enhanced antibacterial activity as a potential of wound dressing applications. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2021. [DOI: 10.1080/10601325.2021.1927754] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Mojdeh Mohseni
- Radiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Farhan Delavar
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Hessam Rezaei
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Zhai Z, Cheng Y, Hong J. Nanomedicines for the treatment of glaucoma: Current status and future perspectives. Acta Biomater 2021; 125:41-56. [PMID: 33601065 DOI: 10.1016/j.actbio.2021.02.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 02/01/2021] [Accepted: 02/10/2021] [Indexed: 12/18/2022]
Abstract
Glaucoma is the global leading cause of irreversible blindness. It is a chronic progressive disorder and, therefore, often requires long-term management with drugs on patients' discretion. However, there is a shortage of antiglaucoma drugs in the current market due to their low bioavailability. This is because there are multiple biological barriers of the human eyes, thereby leading to increased demands for frequent dosage regimen per day of these drugs, which could result in concomitant side effects and eventually reduced patient compliance. Recently, nanomedicines have become optimized alternatives to conventional ophthalmic formulations due to advantages of improved barrier permeability, sustained drug release, tissue targeting, and lowered systemic absorption of instilled medications. These merits provide the active ingredients in these nanomedicines an effective manner to reach the ideal concentrations at sites of damaged nerves, offering a promising platform for neuroprotective treatment of these conditions. In this study, nanomedicines and nanomedicine-based novel strategies for pharmacotherapy of glaucoma were reviewed, including liposomes, niosomes, nanoparticles, and dendrimers. This article intends to offer a comprehensive review of frontier progresses as well as hotspots and issues that appeared in the field of nanomedicines, which may enable a practical flourish in the future. STATEMENT OF SIGNIFICANCE: Recent novel pharmaceutical strategies toward glaucoma, a chronic blinding ocular disease that currently requires frequent daily dosage regimen, based on nanomedicines and nanomaterials have been comprehensively reviewed in this manuscript. The collection of field hotspots and issues in the late years should offer a quick grasp of the general concept and up-to-date threads upon the refinement of existing treatment patterns for glaucoma. Meanwhile, the Conclusion and Future Perspective section given at the end of the text brings out the possible shortages and opinions in terms of ideal research direction, which hopefully could facilitate a future practical flourish in the area.
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Affiliation(s)
- Zimeng Zhai
- Department of Ophthalmology and Visual Science, Eye, and ENT Hospital, Shanghai Medical College, Fudan University, 83 Fenyang Road, Shanghai, China
| | - Yiyun Cheng
- Shanghai Key Laboratory of Regulatory Biology, East China Normal University, Shanghai 200241, China.
| | - Jiaxu Hong
- Department of Ophthalmology and Visual Science, Eye, and ENT Hospital, Shanghai Medical College, Fudan University, 83 Fenyang Road, Shanghai, China; Department of Ophthalmology, The Affiliated Hospital of Guizhou Medical University, Guiyang, China; Shanghai Key Laboratory of Visual Impairment and Restoration, Science and Technology Commission of Shanghai Municipality, Shanghai, China; Key Laboratory of Myopia, Ministry of Health, Shanghai, China.
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Mohseni M, Ramazani S.A. A, H-Shirazi F, Hassanzadeh Nemati N. Gellan gel comprising short PVDF based-nanofibers: The effect of piezoelectric nanofiber on the mechanical and electrical behavior. MATERIALS TODAY COMMUNICATIONS 2021; 26:101785. [DOI: 10.1016/j.mtcomm.2020.101785] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
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28
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Design and synthesis of potential nano-carrier for delivery of diphencyprone to hair follicle. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2021. [DOI: 10.1007/s40005-020-00501-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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29
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Mohseni M, Shojaei S, Mehravi B, Mohammadi E. Natural polymeric nanoparticles as a non-invasive probe for mesenchymal stem cell labelling. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2021; 48:770-776. [PMID: 32297529 DOI: 10.1080/21691401.2020.1748641] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Non-invasive tracking of stem cells after transplant is necessary for cell therapy and tissue engineering field. Herein, we introduce natural and biodegradable nanoparticle to develop a highly efficient nanoprobe with the ability to penetrate the stem cell for tracking. Based on the use of (Gd3+) to label stem cells for magnetic resonance imaging (MRI) we synthesized nanoparticle-containing Gd3+. Gd3+ could be used as t1-weighted MRI contrast agents. In this study, chitosan-alginate nanoparticles were synthesized as a clinical Dotarem® carrier for decreased t1-weighted. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), dynamic light scattering (DLS), and Fourier-transform infrared spectroscopy (FTIR) were utilized for nanoprobe characterization and ICP analysis was performed for Gd3+ concentration measurement. The results illustrate that nanoprobes with spherical shape and with a size of 80 nm without any aggregation were obtained. Relaxivity results suggest that r1 in the phantom was 12.8 mM-1s-1 per Gd3+ ion, which is 3.5 times larger than that for Dotarem® (r1 ∼3.6 mM-1s-1 per Gd3+ ion) and this result for synthesized nanoprobe in stem cells 3.56 mM-1s-1 per Gd3+ ion with 2.16 times larger than that for Dotarem® was reported and also enhanced signal in in-vivo imaging was observed. Chitosan-alginate nanoparticles as a novel biocompatible probe for stem cell tracking can be utilized in tissue engineering approach.
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Affiliation(s)
- Mojdeh Mohseni
- Faculty of advanced technologies in Medicine, Department of Medical nanotechnology, Iran University of Medical Sciences, Tehran, Iran.,Radiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Sima Shojaei
- Faculty of advanced technologies in Medicine, Department of Medical nanotechnology, Iran University of Medical Sciences, Tehran, Iran
| | - Bita Mehravi
- Faculty of advanced technologies in Medicine, Department of Medical nanotechnology, Iran University of Medical Sciences, Tehran, Iran.,Radiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran.,Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Elham Mohammadi
- Radiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran
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Odrobińska J, Skonieczna M, Neugebauer D. PEG Graft Polymer Carriers of Antioxidants: In Vitro Evaluation for Transdermal Delivery. Pharmaceutics 2020; 12:E1178. [PMID: 33287225 PMCID: PMC7761655 DOI: 10.3390/pharmaceutics12121178] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 11/27/2020] [Accepted: 12/01/2020] [Indexed: 01/17/2023] Open
Abstract
The in vitro biochemical evaluation of the applicability of polymers carrying active substances (micelles and conjugates) was carried out. Previously designed amphiphilic graft copolymers with retinol or 4-n-butylresorcinol functionalized polymethacrylate backbone and poly(ethylene glycol) (PEG) side chains that included Janus-type heterografted copolymers containing both PEG and poly(ε-caprolactone) (PCL) side chains were applied as micellar carriers. The polymer self-assemblies were convenient to encapsulate arbutin (ARB) as the selected active substances. Moreover, the conjugates of PEG graft copolymers with ferulic acid (FA) or lipoic acid (LA) were also investigated. The permeability of released active substances through a membrane mimicking skin was evaluated by conducting transdermal tests in Franz diffusion cells. The biological response to new carriers with active substances was tested across cell lines, including normal human dermal fibroblasts (NHDF), human epidermal keratinocyte (HaCaT), as well as cancer melanoma (Me45) and metastatic human melanoma (451-Lu), for comparison. These polymer systems were safe and non-cytotoxic at the tested concentrations for healthy skin cell lines according to the MTT test. Cytometric evaluation of cell cycles as well as cell death defined by Annexin-V apoptosis assays and senescence tests showed no significant changes under action of the delivery systems, as compared to the control cells. In vitro tests confirmed the biochemical potential of these antioxidant carriers as beneficial components in cosmetic products, especially applied in the form of masks and eye pads.
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Affiliation(s)
- Justyna Odrobińska
- Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, 44-100 Gliwice, Poland;
| | - Magdalena Skonieczna
- Department of Systems Biology and Engineering, Silesian University of Technology, Akademicka 16, 44-100 Gliwice, Poland
- Biotechnology Centre, Silesian University of Technology, Krzywoustego 8, 44-100 Gliwice, Poland
| | - Dorota Neugebauer
- Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, 44-100 Gliwice, Poland;
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31
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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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Bin-Jumah M, Gilani SJ, Jahangir MA, Zafar A, Alshehri S, Yasir M, Kala C, Taleuzzaman M, Imam SS. Clarithromycin-Loaded Ocular Chitosan Nanoparticle: Formulation, Optimization, Characterization, Ocular Irritation, and Antimicrobial Activity. Int J Nanomedicine 2020; 15:7861-7875. [PMID: 33116505 PMCID: PMC7568680 DOI: 10.2147/ijn.s269004] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 09/08/2020] [Indexed: 12/11/2022] Open
Abstract
Purpose The topically administered drugs through conventional delivery systems have low bioavailability. Henceforth, the present study was designed to prepare and optimize clarithromycin (CTM)-loaded chitosan nanoparticles (CHNPs) to demonstrate the efficacy against microorganisms. Methods Clarithromycin-loaded chitosan nanoparticles (CTM-CHNPs) were prepared by ionotropic gelation method. The formulation was optimized by box-Behnken design using the formulation variables like CH (A), STPP concentration (B), and stirring speed (C). Their effects were evaluated on the independent variables like particle size (Y1) and entrapment efficiency (Y2). Further, CTM-CHNPs were evaluated for physicochemical parameters, in-vitro drug release, ex-vivo permeation, bioadhesive study, corneal hydration, histopathology, HET-CAM, and antibacterial study. Results The optimized formulation (CTM-CHNPopt) showed the low particle size (152±5 nm), which is desirable for ocular delivery. It also showed high encapsulation (70.05%), zeta potential (+35.2 mV), and was found in a spherical shape. The drug release study revealed a sustained drug release profile (82.98±3.5% in 12 hours) with Korsmeyer peppas kinetic (R2=0.996) release model. It showed a 2.7-fold higher corneal permeation than CTM-solution. CHNPs did not exhibit any sign of damage to excised goat cornea, which is confirmed by hydration, histopathology, and HET-CAM test. It exhibited significant (P<0.05) higher antibacterial susceptibility than CTM-solution. Conclusion The finding of the study concluded that CTM-CHNPs can be used for effective management of bacterial conjunctivitis by increasing the precorneal residence time.
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Affiliation(s)
- May Bin-Jumah
- Biology Department, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Sadaf Jamal Gilani
- Department of Basic Health Sciences, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Mohammed Asadullah Jahangir
- Department of Pharmaceutics, Nibha Institute of Pharmaceutical Sciences, Rajgir, Nalanda 803116, Bihar, India
| | - Ameeduzzafar Zafar
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka, Aljouf, Saudi Arabia
| | - Sultan Alshehri
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.,College of Pharmacy, Almaarefa University, Riyadh, Saudi Arabia
| | - Mohd Yasir
- Department of Pharmacy, College of Health Science, Arsi University, Asella, Ethiopia
| | - Chandra Kala
- Faculty of Pharmacy, Maulana Azad University, Jodhpur 342802, Rajasthan, India
| | - Mohamad Taleuzzaman
- Faculty of Pharmacy, Maulana Azad University, Jodhpur 342802, Rajasthan, India
| | - Syed Sarim Imam
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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Kesavan K, Mohan P, Gautam N, Sheffield VC. Topical Ocular Delivery of Nanocarriers: A Feasible Choice for Glaucoma Management. Curr Pharm Des 2020; 26:5518-5532. [PMID: 32938345 DOI: 10.2174/1381612826666200916145609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 07/17/2020] [Indexed: 11/22/2022]
Abstract
Topical ocular delivery is an acceptable and familiar approach for the treatment of common ocular diseases. Novel strategies for the treatment of inherited eye diseases include new pharmacologic agents, gene therapy and genome editing, which lead to the expansion of new management options for eye disorders. The topical ocular delivery of nanocarriers is a technique, which has the potential to facilitate novel treatments. Nanocarrier- based strategies have proven effective for site-targeted delivery. This review summarizes recent development in the area of topical delivery of different nanocarriers (Polymer, Vesicular and dispersed systems) for the management of glaucoma, a group of ocular disorders characterized by progressive and accelerated degeneration of the axons of retinal ganglion cells, which make up the optic nerve. Unique cellular targets for glaucoma treatment, primarily the trabecular meshwork of the anterior segment of the eye, make glaucoma facilitated by the use of nanocarriers an ideal disorder for novel molecular therapies.
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Affiliation(s)
- Karthikeyan Kesavan
- Department of Pharmaceutics, SLT Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur, C.G. 495009, India
| | - Parasuraman Mohan
- Department of Pharmaceutics, SLT Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur, C.G. 495009, India
| | - Nivedita Gautam
- Department of Pharmaceutics, SLT Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur, C.G. 495009, India
| | - Val C Sheffield
- Department of Pediatrics, Division of Medical Genetics and Genomics, Carver College of Medicine, University of Iowa, IA, 52242, United States
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Abdollahiyan P, Baradaran B, de la Guardia M, Oroojalian F, Mokhtarzadeh A. Cutting-edge progress and challenges in stimuli responsive hydrogel microenvironment for success in tissue engineering today. J Control Release 2020; 328:514-531. [PMID: 32956710 DOI: 10.1016/j.jconrel.2020.09.030] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 09/12/2020] [Accepted: 09/14/2020] [Indexed: 12/15/2022]
Abstract
The field of tissue engineering has numerous potential for modified therapeutic results and has been inspired by enhancements in bioengineering at the recent decades. The techniques of regenerating tissues and assembling functional paradigms that are responsible for repairing, maintaining, and revitalizing lost organs and tissues have affected the entire spectrum of health care studies. Strategies to combine bioactive molecules, biocompatible materials and cells are important for progressing the renewal of damaged tissues. Hydrogels have been utilized as one of the most popular cell substrate/carrier in tissue engineering since previous decades, respect to their potential to retain a 3D structure, to protect the embedded cells, and to mimic the native ECM. The hydrophilic nature of hydrogels can provide an ideal milieu for cell viability and structure, which simulate the native tissues. Hydrogel systems have been applied as a favorable matrix for growth factor delivery and cell immobilization. This study reviews a brief explanation of the structure, characters, applications, fabrication methods, and future outlooks of stimuli responsive hydrogels in tissue engineering and, in particular, 3D bioprinting.
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Affiliation(s)
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Miguel de la Guardia
- Department of Analytical Chemistry, University of Valencia, Dr. Moliner 50, Burjassot, Valencia 46100, Spain
| | - Fatemeh Oroojalian
- Department of Advanced Sciences and Technologies in Medicine, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran.
| | - Ahad Mokhtarzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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35
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Muhtadi WK, Novitasari L, Danarti R, Martien R. Development of polymeric nanoparticle gel prepared with the combination of ionic pre-gelation and polyelectrolyte complexation as a novel drug delivery of timolol maleate. Drug Dev Ind Pharm 2020; 46:1844-1852. [PMID: 32901561 DOI: 10.1080/03639045.2020.1821053] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
OBJECTIVE The purpose of this study was to overcome the undesired systemic absorption of skin topical administration of timolol maleate (TM) by developing the TM nanoparticle gel. METHODS TM-loaded nanoparticle (TMNP) was prepared by ionic pre-gelation of pectin (PCN) and calcium ions (CI) followed with polyelectrolyte complex using chitosan (CHI). TMNP was characterized by measuring the particle size, polydispersity index, zeta potential, encapsulation efficiency (EE), and the interaction between formula constituents. TM-loaded nanoparticle gel (TMNG) was prepared by using hydroxypropyl methylcellulose (HPMC) and was characterized by measuring the spreadability, pH, viscosity, and drug content. The drug release kinetics were analyzed using DDSolver add-in program. RESULTS TMNP possessed particle size of 175.2 ± 19.7 nm, polydispersity index of 0.528 ± 0.113, zeta potential of -10.86 ± 0.87 mV, and EE of 27.45 ± 2.34%. The electrostatic interactions between PCN, CI, and CHI that formed the nanoparticles were confirmed by the result of vibrational spectroscopy analysis. TMNG possessed spreadability of 60.80 ± 1.38 cm2, pH of 5.154 ± 0.004, viscosity of 269.07 ± 5.83 cP, and drug content of 107.38 ± 1.77%. TM showed a sustained release manner within 24 h by following Korsmeyer-Peppas kinetical model with non-Fickian release mechanism. CONCLUSION The prepared nanoparticle gel can be an effective controlled release system of TM that administered topically on the skin surface.
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Affiliation(s)
- Wildan Khairi Muhtadi
- Department of Pharmaceutics, Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta, Indonesia.,Sekolah Tinggi Ilmu Farmasi (STIFAR) Riau, JalanKamboja, Tampan, Pekanbaru, Indonesia
| | - Laras Novitasari
- Department of Pharmaceutics, Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Retno Danarti
- Department of Dermatology and Venereology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Farmako Sekip Utara, Yogyakarta, Indonesia
| | - Ronny Martien
- Department of Pharmaceutics, Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta, Indonesia
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Cuggino JC, Tártara LI, Gugliotta LM, Palma SD, Alvarez Igarzabal CI. Mucoadhesive and responsive nanogels as carriers for sustainable delivery of timolol for glaucoma therapy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 118:111383. [PMID: 33254990 DOI: 10.1016/j.msec.2020.111383] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 07/17/2020] [Accepted: 08/11/2020] [Indexed: 02/06/2023]
Abstract
Topical administration to the eye for the treatment of glaucoma is a convenient route because it increases the patient comfort. Timolol can efficiently diminish the intraocular pressure (IOP) of the eye; however the topical application as a solution of timolol maleate (TM) has poor therapeutic index and presents severe side effects. The encapsulation of timolol in nanomaterials has appeared as a technology to increase its residence time in the eye thus achieving a sustained release and consequently diminishing the doses of this drug and their number. The preparation of nanogels (NGs) based on N-isopropylacrylamide (NIPA) and acrylic acid (AAc), easily synthesized by precipitation/dispersion free radical polymerization, is reported in this paper. Such NGs presented excellent dispersability in eye simulated fluid and ideal size for topical application. NGs can load efficiently timolol through ionic interaction, and the in vitro release showed that NGs deliver timolol in a sustained manner. In vivo sustained efficacy of the NGs-timolol nanoformulations was demonstrated in rabbit's glaucoma model, in which the IOP could be diminished and maintained constant for 48 h with only one application. Overall, the synthesized NGs in combination with timolol have potential as drug delivery system for glaucoma therapy.
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Affiliation(s)
- Julio C Cuggino
- Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), CONICET-UNL, Güemes 3450, 3000 Santa Fe, Argentina
| | - Luis I Tártara
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET and Departamento de Farmacia, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, X5000HUA Córdoba, Argentina
| | - Luis M Gugliotta
- Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), CONICET-UNL, Güemes 3450, 3000 Santa Fe, Argentina
| | - Santiago D Palma
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET and Departamento de Farmacia, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, X5000HUA Córdoba, Argentina.
| | - Cecilia I Alvarez Igarzabal
- Instituto de Investigación y Desarrollo en Ingeniería de Procesos y Química Aplicada (IPQA), CONICET and Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende, Ciudad Universitaria, X5000HUA Córdoba, Argentina.
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37
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Flake-like glass nanoparticles reinforced natural polymeric scaffold as a promising substrate for bone regeneration. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02230-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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38
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Ahmad SI, Ahmad R, Khan MS, Kant R, Shahid S, Gautam L, Hasan GM, Hassan MI. Chitin and its derivatives: Structural properties and biomedical applications. Int J Biol Macromol 2020; 164:526-539. [PMID: 32682975 DOI: 10.1016/j.ijbiomac.2020.07.098] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/19/2020] [Accepted: 07/09/2020] [Indexed: 12/17/2022]
Abstract
Chitin, a polysaccharide that occurs abundantly in nature after cellulose, has attracted the interest of the scientific community due to its plenty of availability and low cost. Mostly, it is derived from the exoskeleton of insects and marine crustaceans. Often, it is insoluble in common solvents that limit its applications but its deacetylated product, named chitosan is found to be soluble in protonated aqueous medium and used widely in various biomedical fields. Indeed, the existence of the primary amino group on the backbone of chitosan provides it an important feature to modify it chemically into other derivatives easily. In the present review, we present the structural properties of chitin, and its derivatives and highlighted their biomedical implications including, tissue engineering, drug delivery, diagnosis, molecular imaging, antimicrobial activity, and wound healing. We further discussed the limitations and prospects of this versatile natural polysaccharide.
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Affiliation(s)
- Syed Ishraque Ahmad
- Department of Chemistry, Zakir Husain Delhi College (University of Delhi), New Delhi 110002, India.
| | - Razi Ahmad
- Regional Center for Advanced Technologies and Materials, Faculty of Science, Palacky University, Slechtitelu 27, 78371 Olomouc, Czech Republic
| | - Mohd Shoeb Khan
- Interdisciplinary Nanotechnology Centre, Aligarh Muslim University, Aligarh 202002, India
| | - Ravi Kant
- Department of Chemistry, Zakir Husain Delhi College (University of Delhi), New Delhi 110002, India
| | - Shumaila Shahid
- Division of Plant Pathology, ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
| | - Leela Gautam
- Department of Chemistry, Zakir Husain Delhi College (University of Delhi), New Delhi 110002, India
| | - Ghulam Mustafa Hasan
- Department of Biochemistry, College of Medicine, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Md Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (Central University), New Delhi 110025, India.
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Zamboulis A, Nanaki S, Michailidou G, Koumentakou I, Lazaridou M, Ainali NM, Xanthopoulou E, Bikiaris DN. Chitosan and its Derivatives for Ocular Delivery Formulations: Recent Advances and Developments. Polymers (Basel) 2020; 12:E1519. [PMID: 32650536 PMCID: PMC7407599 DOI: 10.3390/polym12071519] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 07/03/2020] [Accepted: 07/03/2020] [Indexed: 02/06/2023] Open
Abstract
Chitosan (CS) is a hemi-synthetic cationic linear polysaccharide produced by the deacetylation of chitin. CS is non-toxic, highly biocompatible, and biodegradable, and it has a low immunogenicity. Additionally, CS has inherent antibacterial properties and a mucoadhesive character and can disrupt epithelial tight junctions, thus acting as a permeability enhancer. As such, CS and its derivatives are well-suited for the challenging field of ocular drug delivery. In the present review article, we will discuss the properties of CS that contribute to its successful application in ocular delivery before reviewing the latest advances in the use of CS for the development of novel ophthalmic delivery systems. Colloidal nanocarriers (nanoparticles, micelles, liposomes) will be presented, followed by CS gels and lenses and ocular inserts. Finally, instances of CS coatings, aiming at conferring mucoadhesiveness to other matrixes, will be presented.
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Affiliation(s)
- Alexandra Zamboulis
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (S.N.); (G.M.); (I.K.); (M.L.); (N.M.A.); (E.X.)
| | | | | | | | | | | | | | - Dimitrios N. Bikiaris
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (S.N.); (G.M.); (I.K.); (M.L.); (N.M.A.); (E.X.)
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Esteban-Pérez S, Andrés-Guerrero V, López-Cano JJ, Molina-Martínez I, Herrero-Vanrell R, Bravo-Osuna I. Gelatin Nanoparticles-HPMC Hybrid System for Effective Ocular Topical Administration of Antihypertensive Agents. Pharmaceutics 2020; 12:E306. [PMID: 32231033 PMCID: PMC7238113 DOI: 10.3390/pharmaceutics12040306] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 03/22/2020] [Accepted: 03/24/2020] [Indexed: 02/06/2023] Open
Abstract
The increment in ocular drug bioavailability after topical administration is one of the main challenges in pharmaceutical technology. For several years, different strategies based on nanotechnology, hydrogels or implants have been evaluated. Nowadays, the tolerance of ophthalmic preparations has become a critical issue and it is essential to the use of well tolerated excipients. In the present work, we have explored the potential of gelatin nanoparticles (GNPs) loaded with timolol maleate (TM), a beta-adrenergic blocker widely used in the clinic for glaucoma treatment and a hybrid system of TM-GNPs included in a hydroxypropyl methylcellulose (HPMC) viscous solution. The TM- loaded nanoparticles (mean particle size of 193 ± 20 nm and drug loading of 0.291 ± 0.019 mg TM/mg GNPs) were well tolerated both in vitro (human corneal cells) and in vivo. The in vivo efficacy studies performed in normotensive rabbits demonstrated that these gelatin nanoparticles were able to achieve the same hypotensive effect as a marketed formulation (0.5% TM) containing a 5-fold lower concentration of the drug. When comparing commercial and TM-GNPs formulations with the same TM dose, nanoparticles generated an increased efficacy with a significant (p < 0.05) reduction of intraocular pressure (IOP) (from 21% to 30%) and an augmentation of 1.7-fold in the area under the curve (AUC)(0-12h). On the other hand, the combination of timolol-loaded nanoparticles (TM 0.1%) and the viscous polymer HPMC 0.3%, statistically improved the IOP reduction up to 30% (4.65 mmHg) accompanied by a faster time of maximum effect (tmax = 1 h). Furthermore, the hypotensive effect was extended for four additional hours, reaching a pharmacological activity that lasted 12 h after a single instillation of this combination, and leading to an AUC(0-12h) 2.5-fold higher than the one observed for the marketed formulation. According to the data presented in this work, the use of hybrid systems that combine well tolerated gelatin nanoparticles and a viscous agent could be a promising alternative in the management of high intraocular pressure in glaucoma.
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Affiliation(s)
- Sergio Esteban-Pérez
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (S.E.-P.); (V.A.-G.); (J.J.L.-C.); (I.M.-M.); (R.H.-V.)
- Sanitary Research Institute of the San Carlos Clinical Hospital (IdISSC) San Carlos Clinical Hospital, Calle Profesor Martín Lagos, s/n, 28040 Madrid, Spain
- Ocular Pathology National Net (OFTARED) of the Institute of Health Carlos III, Calle Profesor Martín Lagos, s/n, 28040 Madrid, Spain
| | - Vanessa Andrés-Guerrero
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (S.E.-P.); (V.A.-G.); (J.J.L.-C.); (I.M.-M.); (R.H.-V.)
- Sanitary Research Institute of the San Carlos Clinical Hospital (IdISSC) San Carlos Clinical Hospital, Calle Profesor Martín Lagos, s/n, 28040 Madrid, Spain
- Ocular Pathology National Net (OFTARED) of the Institute of Health Carlos III, Calle Profesor Martín Lagos, s/n, 28040 Madrid, Spain
| | - José Javier López-Cano
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (S.E.-P.); (V.A.-G.); (J.J.L.-C.); (I.M.-M.); (R.H.-V.)
- Sanitary Research Institute of the San Carlos Clinical Hospital (IdISSC) San Carlos Clinical Hospital, Calle Profesor Martín Lagos, s/n, 28040 Madrid, Spain
- Ocular Pathology National Net (OFTARED) of the Institute of Health Carlos III, Calle Profesor Martín Lagos, s/n, 28040 Madrid, Spain
| | - Irene Molina-Martínez
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (S.E.-P.); (V.A.-G.); (J.J.L.-C.); (I.M.-M.); (R.H.-V.)
- Sanitary Research Institute of the San Carlos Clinical Hospital (IdISSC) San Carlos Clinical Hospital, Calle Profesor Martín Lagos, s/n, 28040 Madrid, Spain
- Ocular Pathology National Net (OFTARED) of the Institute of Health Carlos III, Calle Profesor Martín Lagos, s/n, 28040 Madrid, Spain
| | - Rocio Herrero-Vanrell
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (S.E.-P.); (V.A.-G.); (J.J.L.-C.); (I.M.-M.); (R.H.-V.)
- Sanitary Research Institute of the San Carlos Clinical Hospital (IdISSC) San Carlos Clinical Hospital, Calle Profesor Martín Lagos, s/n, 28040 Madrid, Spain
- Ocular Pathology National Net (OFTARED) of the Institute of Health Carlos III, Calle Profesor Martín Lagos, s/n, 28040 Madrid, Spain
| | - Irene Bravo-Osuna
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, UCM 920415, Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (S.E.-P.); (V.A.-G.); (J.J.L.-C.); (I.M.-M.); (R.H.-V.)
- Sanitary Research Institute of the San Carlos Clinical Hospital (IdISSC) San Carlos Clinical Hospital, Calle Profesor Martín Lagos, s/n, 28040 Madrid, Spain
- Ocular Pathology National Net (OFTARED) of the Institute of Health Carlos III, Calle Profesor Martín Lagos, s/n, 28040 Madrid, Spain
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Nanoscale poly(acrylic acid)-based hydrogels prepared via a green single-step approach for application as low-viscosity biomimetic fluid tears. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 110:110726. [PMID: 32204037 DOI: 10.1016/j.msec.2020.110726] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/16/2019] [Accepted: 02/03/2020] [Indexed: 12/19/2022]
Abstract
The present work reports a nanotechnology strategy to prepare a low-viscosity poly(acrylic acid) (PAAc)-based tear substitute with enhanced efficacy and compliance. Specifically, nanogels composed of PAAc and polyvinylpyrrolidone (PVP) were prepared by adapting an ionizing radiation method. For this purpose, different aqueous systems: PVP/PAAc nanoparticulate complexes, PVP/acrylic acid (AAc), N-vinylpyrrolidone (N-VP)/PAAc, and N-VP/AAc were exposed to gamma rays. The dynamic light scattering technique showed that stable nanogels are only produced in a relatively high yield from the PVP/AAc system. Nanogel formation was driven by the hydrogen-bonding complexation between PVP and PAAc (formed in situ) as well as the radiation-induced cross-linking. Transparency, viscosity and mucoadhesiveness of emerged nanogels were optimized by controlling the feed composition and irradiation dose. Furthermore, neutralized nanogels were topically applied in a dry eye model and compared with a PAAc-based commercial tear substitute, namely Vidisic® Gel. The results of Schirmer's test and tear break-up time demonstrated that nanogels prepared from AAc-rich feed solutions at 20 kGy enhanced markedly the dry eye conditions. The histopathological analysis also ensured the competence of PAAc-rich nanogels to completely return the corneal epithelium to its normal state.
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Abstract
Glaucoma is the second leading cause of blindness worldwide. Even though significant advances have been made in its management, currently available antiglaucoma therapies suffer from considerable drawbacks. Typically, the success and efficacy of glaucoma medications are undermined by their limited bioavailability to target tissues and the inadequate adherence demonstrated by patients with glaucoma. The latter is due to a gradual decrease in tolerability of lifelong topical therapies and the significant burden to patients of prescribed stepwise antiglaucoma regimens with frequent dosing which impact quality of life. On the other hand, glaucoma surgery is restricted by the inability of antifibrotic agents to efficiently control the wound healing process without causing severe collateral damage and long-term complications. Evolution of the treatment paradigm for patients with glaucoma will ideally include prevention of retinal ganglion cell degeneration by the successful delivery of neurotrophic factors, anti-inflammatory drugs, and gene therapies. Nanotechnology-based treatments may surpass the limitations of currently available glaucoma therapies through optimized targeted drug delivery, increased bioavailability, and controlled release. This review addresses the recent advances in glaucoma treatment strategies employing nanotechnology, including medical and surgical management, neuroregeneration, and neuroprotection.
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Grimaudo MA, Amato G, Carbone C, Diaz-Rodriguez P, Musumeci T, Concheiro A, Alvarez-Lorenzo C, Puglisi G. Micelle-nanogel platform for ferulic acid ocular delivery. Int J Pharm 2019; 576:118986. [PMID: 31870956 DOI: 10.1016/j.ijpharm.2019.118986] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/04/2019] [Accepted: 12/19/2019] [Indexed: 12/26/2022]
Abstract
Corneal wound healing after a trauma or a chemical injury has been shown to correlate with antioxidant levels at the ocular surface. However, ocular bioavailability of efficient antioxidants (e.g. ferulic acid) after topical administration is limited by their poor solubility, low stability and short residence time. The aim of this work was to formulate ferulic acid in a nanocomposite platform composed of nanogels and micelles for efficient delivery to cornea. Solubility enhancement factor of ferulic acid was found to be equal to 1.9 ± 0.3 and 3.4 ± 0.3 for 50 and 100 mg/ml Pluronic® F68 micellar solutions. Hyaluronan was added to blank and ferulic acid loaded micelles, and then cross-linked with ε-polylysine. Hyaluronan nanogels showed dimensions of ~300 nm with positive zeta potential values. The formulations were characterized in terms of rheological behavior, biocompatibility, wound healing properties, ferulic acid release pattern and penetration into excised bovine corneas. In comparison to Pluronic® micelles that released ferulic acid rapidly, micelle-nanogel composites sustained the release up to 2 days. Furthermore, the micelle-nanogel formulation favored in vitro wound closure promoting fibroblasts growth and ex vivo accumulation of ferulic acid into both healthy and damaged corneas (>100 µg/cm2).
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Affiliation(s)
- Maria Aurora Grimaudo
- Laboratory of Drug Delivery Technology, Department of Drug Sciences, University of Catania, Catania, Italy; Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Giovanni Amato
- Laboratory of Drug Delivery Technology, Department of Drug Sciences, University of Catania, Catania, Italy.
| | - Claudia Carbone
- Laboratory of Drug Delivery Technology, Department of Drug Sciences, University of Catania, Catania, Italy
| | - Patricia Diaz-Rodriguez
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Teresa Musumeci
- Laboratory of Drug Delivery Technology, Department of Drug Sciences, University of Catania, Catania, Italy
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Giovanni Puglisi
- Laboratory of Drug Delivery Technology, Department of Drug Sciences, University of Catania, Catania, Italy
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Mittal N, Kaur G. Leucaena leucocephala (Lam.) galactomannan nanoparticles: Optimization and characterization for ocular delivery in glaucoma treatment. Int J Biol Macromol 2019; 139:1252-1262. [DOI: 10.1016/j.ijbiomac.2019.08.107] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 07/31/2019] [Accepted: 08/12/2019] [Indexed: 02/07/2023]
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Pontillo ARN, Detsi A. Nanoparticles for ocular drug delivery: modified and non-modified chitosan as a promising biocompatible carrier. Nanomedicine (Lond) 2019; 14:1889-1909. [PMID: 31274373 DOI: 10.2217/nnm-2019-0040] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The eye is a very important, yet sensitive organ, presenting complex anatomy. To overcome its protective mechanisms, with the aim of improving drug delivery, drug encapsulation in nanocarriers is considered in this review. Chitosan is found to be an excellent drug carrier and its application in ophthalmology is being extensively researched. This mucoadhesive biopolymer can protect the encapsulated molecule, optimize its mode of action and minimize any existent risk. Moreover, chitosan and its derivatives may provide advantageous properties to the system such as thermoresponsivity and pH dependency. Finally, dual systems of chitosan with other carriers, such as poly (lactic-co-glycolic acid) and alginate, are also mentioned in this review, as they may offer additional benefits such as higher permeation due to different interaction of each carrier with the corneal layers.
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Affiliation(s)
- Antonella Rozaria Nefeli Pontillo
- Laboratory of Organic Chemistry, School of Chemical Engineering, National Technical University of Athens, Iroon Politechniou 9, 15780 Athens, Greece
| | - Anastasia Detsi
- Laboratory of Organic Chemistry, School of Chemical Engineering, National Technical University of Athens, Iroon Politechniou 9, 15780 Athens, Greece
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Investigations on Polymeric Nanoparticles for Ocular Delivery. ADVANCES IN POLYMER TECHNOLOGY 2019. [DOI: 10.1155/2019/1316249] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In the present investigation, an attempt was made to formulate timolol maleate (TML) loaded polymeric nanoparticles of flax seed gum (FX) and chitosan (CH) for ocular delivery using ionic gelation method. The process of nanoparticle preparation was optimized using 2-factor, 3-level central composite experimental design. The optimal concentration of FX and CH that yielded nanoparticles with minimum particle size (267.06 ± 8.65 nm) and maximum encapsulation efficiency (74.96 ± 4.78%) was found to be 0.10% w/v and 0.08% w/v, respectively. The formulated nanoparticles revealed considerable bioadhesive strength and exhibited sustained release of drug in in vitro diffusion studies. The ex vivo transcorneal penetration study revealed higher corneal penetration of TML compared to marketed eye drops. The confocal scanning laser microscopy (CSLM) studies also confirmed the ability of nanoparticles to penetrate into deeper layers of cornea. The histopathological studies revealed corneal biocompatibility of nanoparticles. The nanoparticles were found to reduce the intra ocular pressure (IOP) in rabbits for prolonged period when compared to conventional eye drops. The results of the present study suggested a promising role of polymeric nanoparticles for ocular drug delivery in treatment of glaucoma.
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Xu Y, Zhang C, Zhu X, Wang X, Wang H, Hu G, Fu Q, He Z. Chloramphenicol/sulfobutyl ether-β-cyclodextrin complexes in an ophthalmic delivery system: prolonged residence time and enhanced bioavailability in the conjunctival sac. Expert Opin Drug Deliv 2019; 16:657-666. [DOI: 10.1080/17425247.2019.1609447] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yuhua Xu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Chi Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Xiaolei Zhu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Xinxu Wang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Haoyu Wang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Guowei Hu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Qiang Fu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Zhonggui He
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
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Abnoos M, Mohseni M, Mousavi SAJ, Ashtari K, Ilka R, Mehravi B. Chitosan-alginate nano-carrier for transdermal delivery of pirfenidone in idiopathic pulmonary fibrosis. Int J Biol Macromol 2018; 118:1319-1325. [PMID: 29715556 DOI: 10.1016/j.ijbiomac.2018.04.147] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 04/15/2018] [Accepted: 04/27/2018] [Indexed: 01/10/2023]
Abstract
Pirfenidone (PFD) is one of the pyridine family components with anti-inflammatory, antifibrotic effects and US FDA approved for the treatment of idiopathic pulmonary fibrosis (IPF). Presently, PFD is administered orally and this has setbacks. Hence, it is important to eliminate the pharmacotherapeutic limitations of PFD. This research was carried out to study the possibility of transdermal delivery of PFD using chitosan-sodium alginate nanogel carriers. In order to synthesize chitosan-sodium alginate nanoparticles loaded with PFD, the pre-gelation method was used. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), dynamic light scattering (DLS), and Fourier-transform infrared spectroscopy (FTIR) analyses were used for the characterization. Drug encapsulation and release manner were studied using UV spectroscopy. Ex vivo permeation examinations were performed using Franz diffusion cell and fluorescence microscopy. The results showed that nanoparticles having spherical morphology and size in the range of 80 nm were obtained. In vitro drug release profile represents sustained release during 24 h, while 50% and 94% are the loading capacity and efficiency, respectively. Also, the skin penetration of PFD loaded in nanoparticles was significantly increased as compared to PFD solution. The obtained results showed that synthesized nanoparticles can be considered as promising carriers for PFD delivery.
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Affiliation(s)
- Marzieh Abnoos
- Department of Medical Nanotechnology, Faculty of Advanced Technology in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mojdeh Mohseni
- Radiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | | | - Khadijeh Ashtari
- Department of Medical Nanotechnology, Faculty of Advanced Technology in Medicine, Iran University of Medical Sciences, Tehran, Iran; Radiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran; Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Roya Ilka
- Department of Medical Nanotechnology, Faculty of Advanced Technology in Medicine, Iran University of Medical Sciences, Tehran, Iran; Radiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Bita Mehravi
- Department of Medical Nanotechnology, Faculty of Advanced Technology in Medicine, Iran University of Medical Sciences, Tehran, Iran; Radiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran; Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran.
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Nguyen H, Eng S, Ngo T, Dass CR. Delivery of therapeutics for deep-seated ocular conditions - status quo. ACTA ACUST UNITED AC 2018; 70:994-1001. [PMID: 29675844 DOI: 10.1111/jphp.12924] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 03/24/2018] [Indexed: 12/17/2022]
Abstract
OBJECTIVES There is a need for research into designing effective pharmaceutical systems for delivering therapeutic drugs to the posterior of the eye for glaucoma-related pathology, macular degeneration, diabetic retinopathy, macular oedema, retinitis and choroiditis. Conventionally, eye drops have been extensively utilised for topical drug delivery to the anterior segment of the eye, but are less effective for delivery of therapeutics to the back of the eye due to significant barriers hampering drug penetration into the target intraocular tissue. This review explores some of the current and novel delivery systems employed to deliver therapeutics to the back of the eye such as those using liposomes, ocular implants, in situ gels, and nanoparticles, and how they can overcome some of these limitations. KEY FINDINGS Issues such as blinking, precorneal fluid drainage, tear dilution and turnover, conjunctiva and nasal drug absorption, the corneal epithelium, vitreous drug clearance, and the blood-ocular barriers are reviewed and discussed. SUMMARY Further studies are needed to address their shortcomings such as drug compatibility and stability, economic viability and patient compliance.
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Affiliation(s)
- Hubert Nguyen
- School of Pharmacy and Biomedical Science, Curtin University, Bentley, WA, Australia
| | - Shawn Eng
- School of Pharmacy and Biomedical Science, Curtin University, Bentley, WA, Australia
| | - Thanh Ngo
- School of Pharmacy and Biomedical Science, Curtin University, Bentley, WA, Australia
| | - Crispin R Dass
- School of Pharmacy and Biomedical Science, Curtin University, Bentley, WA, Australia.,Curtin Health Innovation Research Institute, Bentley, WA, Australia
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