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Bokatyi AN, Dubashynskaya NV, Skorik YA. Chemical modification of hyaluronic acid as a strategy for the development of advanced drug delivery systems. Carbohydr Polym 2024; 337:122145. [PMID: 38710553 DOI: 10.1016/j.carbpol.2024.122145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 03/28/2024] [Accepted: 04/08/2024] [Indexed: 05/08/2024]
Abstract
Hyaluronic acid (HA) has emerged as a promising biopolymer for various biomedical applications due to its biocompatibility, biodegradability, and intrinsic ability to interact with cell surface receptors, making it an attractive candidate for drug delivery systems and tissue engineering. Chemical modification of HA has opened up versatile possibilities to tailor its properties, enabling the development of advanced drug delivery systems and biomaterials with enhanced functionalities and targeted applications. This review analyzes the strategies and applications of chemically modified HA in the field of drug delivery and biomaterial development. The first part of the review focuses on the different methods and functional groups used for the chemical modification of HA, highlighting the impact of these modifications on its physicochemical properties, degradation behavior and interactions with drugs. The second part of the review evaluates the use of chemically modified HA in the development of advanced biomedical materials including nano- and microparticles, hydrogels and mucoadhesive materials with tailored drug release profiles, site-specific targeting and stimuli-responsive behavior. Thus, the review consolidates the current advances and future perspectives in the field of chemical modification of HA, underscoring its immense potential to drive the development of advanced drug delivery systems and biomaterials with diverse biomedical applications.
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Affiliation(s)
- Anton N Bokatyi
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoi VO 31, St. Petersburg 199004, Russian Federation
| | - Natallia V Dubashynskaya
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoi VO 31, St. Petersburg 199004, Russian Federation
| | - Yury A Skorik
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoi VO 31, St. Petersburg 199004, Russian Federation.
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Marto-Costa C, Toffoletto N, Salema-Oom M, Antunes AMM, Pinto CA, Saraiva JA, Silva-Herdade AS, Alvarez-Lorenzo C, Serro AP. Improved triamcinolone acetonide-eluting contact lenses based on cyclodextrins and high hydrostatic pressure assisted complexation. Carbohydr Polym 2024; 331:121880. [PMID: 38388063 DOI: 10.1016/j.carbpol.2024.121880] [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: 10/12/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/24/2024]
Abstract
Contact lenses (CLs) constitute an advantageous platform for the topical release of corticosteroids due to their prolonged contact with the eye. However, the lipophilic nature of corticosteroids hampers CLs' ability to release therapeutic amounts. Two approaches to improve loading and release of triamcinolone acetonide (TA) from poly(2-hydroxyethyl methacrylate)-based hydrogels were investigated: adding 2-hydroxypropyl-β-cyclodextrin (HP-β-CD) to the monomers solution before polymerization (HEMA/i-CD) and an hydrogels' post-treatment with HP-β-CD (HEMA/p-CD). The effect of HP-β-CD and sterilization by high hydrostatic pressure (HHP) on the hydrogel properties (water content, oxygen and ion permeability, roughness, transmittance, and stiffness) was evaluated. The HEMA/i-CD hydrogels had stronger affinity for TA, sustaining its release for one day. HHP sterilization promoted the formation of cyclodextrin-TA complexes within the hydrogels, improving their drug-loading capacity »60 %. Cytotoxicity and irritability tests confirmed the safety of the therapeutic CLs. TA released from the hydrogels permeated through ocular tissues ex vivo and showed anti-inflammatory activity. Finally, a previously validated mathematical model was used to estimate the ability of the TA-loaded CLs to deliver therapeutic drug concentrations to the posterior part of the eye. Overall, HP-β-CD-containing CLs are promising candidates for the topical ocular application of TA as an alternative delivery system to intraocular injections.
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Affiliation(s)
- Carolina Marto-Costa
- Centro de Química Estrutural (CQE) - Institute of Molecular Sciences and Chemical Engineering Department, Instituto Superior Técnico - University of Lisbon, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; Egas Moniz Center for Interdisciplinary Research (CiiEM), Egas Moniz School of Health & Science, Campus Universitário, Quinta da Granja, 2829-511 Monte da Caparica, Almada, Portugal.
| | - Nadia Toffoletto
- Centro de Química Estrutural (CQE) - Institute of Molecular Sciences and Chemical Engineering Department, Instituto Superior Técnico - University of Lisbon, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; Egas Moniz Center for Interdisciplinary Research (CiiEM), Egas Moniz School of Health & Science, Campus Universitário, Quinta da Granja, 2829-511 Monte da Caparica, Almada, Portugal.
| | - Madalena Salema-Oom
- Egas Moniz Center for Interdisciplinary Research (CiiEM), Egas Moniz School of Health & Science, Campus Universitário, Quinta da Granja, 2829-511 Monte da Caparica, Almada, Portugal.
| | - Alexandra M M Antunes
- Centro de Química Estrutural (CQE) - Institute of Molecular Sciences and Chemical Engineering Department, Instituto Superior Técnico - University of Lisbon, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
| | - Carlos A Pinto
- LAQV-REQUIMTE, Chemical Engineering Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Jorge A Saraiva
- LAQV-REQUIMTE, Chemical Engineering Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Ana S Silva-Herdade
- Instituto de Bioquímica, Instituto de Medicina Molecular, Faculdade de Medicina - University of Lisbon, Av. Prof. Egas Moniz, 1649-028 Lisboa, Portugal.
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+DFarma (GI-1645), Facultad de Farmacia, Instituto de Materiales (iMATUS) and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Ana Paula Serro
- Centro de Química Estrutural (CQE) - Institute of Molecular Sciences and Chemical Engineering Department, Instituto Superior Técnico - University of Lisbon, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; Egas Moniz Center for Interdisciplinary Research (CiiEM), Egas Moniz School of Health & Science, Campus Universitário, Quinta da Granja, 2829-511 Monte da Caparica, Almada, Portugal.
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Paganini V, Chetoni P, Di Gangi M, Monti D, Tampucci S, Burgalassi S. Nanomicellar eye drops: a review of recent advances. Expert Opin Drug Deliv 2024; 21:381-397. [PMID: 38396342 DOI: 10.1080/17425247.2024.2323208] [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: 12/26/2023] [Accepted: 02/21/2024] [Indexed: 02/25/2024]
Abstract
INTRODUCTION Research on nanotechnology in medicine has also involved the ocular field and nanomicelles are among the applications developed. This approach is used to increase both the water solubility of hydrophobic drugs and their penetration/permeation within/through the ocular tissues since nanomicelles are able to encapsulate insoluble drug into their core and their small size allows them to penetrate and/or diffuse through the aqueous pores of ocular tissues. AREAS COVERED The present review reports the most significant and recent literature on the use of nanomicelles, made up of both surfactants and amphiphilic polymers, to overcome limitations imposed by the physiology of the eye in achieving a high bioavailability of drugs intended for the therapeutic areas of greatest commercial interest: dry eye, inflammation, and glaucoma. EXPERT OPINION The results of the numerous studies in this field are encouraging and demonstrate that nanomicelles may be the answer to some of the challenges of ocular therapy. In the future, new molecules self-assembling into micelles will be able to meet the regulatory requirements for marketing authorization for their use in ophthalmic formulations.
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Affiliation(s)
| | - Patrizia Chetoni
- Department of Pharmacy, University of Pisa, Pisa, Italy
- Inter-University Center for the Promotion of the Rs Principles in Teaching & Research (CentroR), Pisa, Italy
| | | | - Daniela Monti
- Department of Pharmacy, University of Pisa, Pisa, Italy
- Inter-University Center for the Promotion of the Rs Principles in Teaching & Research (CentroR), Pisa, Italy
| | - Silvia Tampucci
- Department of Pharmacy, University of Pisa, Pisa, Italy
- Inter-University Center for the Promotion of the Rs Principles in Teaching & Research (CentroR), Pisa, Italy
| | - Susi Burgalassi
- Department of Pharmacy, University of Pisa, Pisa, Italy
- Inter-University Center for the Promotion of the Rs Principles in Teaching & Research (CentroR), Pisa, Italy
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Nirbhavane P, Sharma G, Sharma R, Katare OP. Steroidal nanoformulations for the treatment of uveitis: potential, promises and future perspectives. Int Ophthalmol 2024; 44:58. [PMID: 38342799 DOI: 10.1007/s10792-024-03000-4] [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: 08/10/2023] [Accepted: 10/19/2023] [Indexed: 02/13/2024]
Abstract
BACKGROUND Intraocular inflammation, commonly referred to as uveitis, is a prevalent ocular disease. The categorization of uveitis may be based on the prevailing anatomical site, which includes anterior, intermediate, and posterior uveitis. There exists a significant body of evidence indicating that T cells play a pivotal role in the pathogenesis of autoimmune uveitis. In addition to the presence of T cells, an elevation in levels of inflammatory cytokines and a reduction in regulatory cytokines were also noted. The primary pharmacological interventions for uveitis comprise of corticosteroids, methotrexate, anti-vascular endothelial growth factor (VEGF) agents, anti-tumor necrosis factor-alpha (TNF-α) antibodies, and sirolimus. These medications offer prompt alleviation for inflammation. Nevertheless, prolonged administration of corticosteroids invariably leads to unfavorable adverse reactions. The traditional topical corticosteroids exhibit certain limitations, including inadequate transcorneal permeation and low corneal retention, leading to reduced ocular bioavailability. Consequently, there is a growing inclination towards the creation of innovative steroid drug delivery systems with the aim of reducing the potential for adverse effects, while simultaneously enhancing the drug's corneal permeation and retention. CONCLUSION This review is an attempt to compile all the research work done so far in this field and provides a brief overview of the global efforts to develop innovative nanocarrier-based systems for corticosteroids.
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Affiliation(s)
| | - Gajanand Sharma
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, 160014, India
| | - Rajeev Sharma
- Amity University, Gwalior, Madhya Pradesh, 474005, India
| | - O P Katare
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, 160014, India
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Binkhathlan Z, Ali R, Alomrani AH, Abul Kalam M, Alshamsan A, Lavasanifar A. Role of Polymeric Micelles in Ocular Drug Delivery: An Overview of Decades of Research. Mol Pharm 2023; 20:5359-5382. [PMID: 37769017 DOI: 10.1021/acs.molpharmaceut.3c00598] [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: 09/30/2023]
Abstract
Local drug delivery to the eye through conventional means has faced many challenges due to three essential barriers: (a) the complex structure of the cornea limiting drug absorption, (b) the capacity of ocular absorptive cells in drug metabolism, and (c) the washing effect of eye tears. Polymeric micelles (PMs) have been the focus of much interest for ocular drug delivery due to several advantages they provide for this application, including the capacity for the solubilization of hydrophobic drugs, nonirritability, nanoscopic diameter, and the clarity of their aqueous solution not interfering with vision. The potential to increase the release and residence time of incorporated medication at the site of absorption is also a bonus advantage for these delivery systems. This Review covers research conducted on single or mixed micelles prepared from small amphiphilic molecules, copolymers (diblock, triblock, and graft), and gel systems containing micelles. The purpose of this review is to provide an update on the status of micellar ocular delivery systems for different indications, with a focus on preclinical and clinical drug development. In this context, we are discussing the anatomy of the eye, various ocular barriers, different micellar formulations, and their benefits in ocular drug delivery, as well as the role of PMs in the management of ocular diseases both in preclinical models and in clinic. The encouraging preclinical effectiveness findings from experiments conducted in both laboratory settings and live animals have paved the way for the advancement of micellar systems in clinical trials for ocular administration and the first nanomicallar formulation approved for clinical use by the United States Food and Drug Administration (marketed as Cequa by Sun Pharmaceuticals).
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Affiliation(s)
- Ziyad Binkhathlan
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
- Nanobiotechnology Research Unit, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Raisuddin Ali
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
- Nanobiotechnology Research Unit, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Abdullah H Alomrani
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
- Nanobiotechnology Research Unit, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Mohd Abul Kalam
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
- Nanobiotechnology Research Unit, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Aws Alshamsan
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
- Nanobiotechnology Research Unit, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Afsaneh Lavasanifar
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta T6G 2H7, Canada
- Department of Chemical and Material Engineering, University of Alberta, Edmonton, Alberta T6G 2 V4, Canada
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De Hoon I, Boukherroub R, De Smedt SC, Szunerits S, Sauvage F. In Vitro and Ex Vivo Models for Assessing Drug Permeation across the Cornea. Mol Pharm 2023. [PMID: 37314950 DOI: 10.1021/acs.molpharmaceut.3c00195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Drug permeation across the cornea remains a major challenge due to its unique and complex anatomy and physiology. Static barriers such as the different layers of the cornea, as well as dynamic aspects such as the constant renewal of the tear film and the presence of the mucin layer together with efflux pumps, all present unique challenges for effective ophthalmic drug delivery. To overcome some of the current ophthalmic drug limitations, the identification and testing of novel drug formulations such as liposomes, nanoemulsions, and nanoparticles began to be considered and widely explored. In the early stages of corneal drug development reliable in vitro and ex vivo alternatives, are required, to be in line with the principles of the 3Rs (Replacement, Reduction, and Refinement), with such methods being in addition faster and more ethical alternatives to in vivo studies. The ocular field remains limited to a handful of predictive models for ophthalmic drug permeation. In vitro cell culture models are increasingly used when it comes to transcorneal permeation studies. Ex vivo models using excised animal tissue such as porcine eyes are the model of choice to study corneal permeation and promising advancements have been reported over the years. Interspecies characteristics must be considered in detail when using such models. This review updates the current knowledge about in vitro and ex vivo corneal permeability models and evaluates their advantages and limitations.
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Affiliation(s)
- Inès De Hoon
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520 - IEMN, F-59000 Lille, France
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, 9000 Ghent, Belgium
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520 - IEMN, F-59000 Lille, France
| | - Stefaan C De Smedt
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, 9000 Ghent, Belgium
| | - Sabine Szunerits
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520 - IEMN, F-59000 Lille, France
| | - Félix Sauvage
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, 9000 Ghent, Belgium
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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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Zashikhina N, Gladnev S, Sharoyko V, Korzhikov-Vlakh V, Korzhikova-Vlakh E, Tennikova T. Synthesis and Characterization of Nanoparticle-Based Dexamethasone-Polypeptide Conjugates as Potential Intravitreal Delivery Systems. Int J Mol Sci 2023; 24:ijms24043702. [PMID: 36835114 PMCID: PMC9962198 DOI: 10.3390/ijms24043702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 02/15/2023] Open
Abstract
The use of dexamethasone for eye disease treatment is limited by its low solubility, bioavailability, and rapid elimination when applied topically. The covalent conjugation of dexamethasone with polymeric carriers is a promising strategy to overcome existing drawbacks. In this work, amphiphilic polypeptides capable of self-assembly into nanoparticles were proposed as potential delivery systems for intravitreal delivery. The nanoparticles were prepared and characterized using poly(L-glutamic acid-co-D-phenylalanine) and poly(L-lysine-co-D/L-phenylalanine) as well as poly(L-lysine-co-D/L-phenylalanine) covered with heparin. The critical association concentration for the polypeptides obtained was in the 4.2-9.4 μg/mL range. The hydrodynamic size of the formed nanoparticles was between 90 and 210 nm, and they had an index of polydispersity between 0.08 and 0.27 and an absolute zeta-potential value between 20 and 45 mV. The ability of nanoparticles to migrate in the vitreous humor was examined using intact porcine vitreous. Conjugation of DEX with polypeptides was performed by additional succinylation of DEX and activation of carboxyl groups introduced to react with primary amines in polypeptides. The structures of all intermediate and final compounds were verified by 1H NMR spectroscopy. The amount of conjugated DEX can be varied from 6 to 220 µg/mg of polymer. The hydrodynamic diameter of the nanoparticle-based conjugates was increased to 200-370 nm, depending on the polymer sample and drug loading. The release of DEX from the conjugates due to hydrolysis of the ester bond between DEX and the succinyl moiety was studied both in a buffer medium and a vitreous/buffer mixture (50/50, v/v). As expected, the release in the vitreous medium was faster. However, the release rate could be controlled in the range of 96-192 h by varying the polymer composition. In addition, several mathematical models were used to assess the release profiles and figure out how DEX is released.
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Affiliation(s)
- Natalia Zashikhina
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia
| | - Sergei Gladnev
- Institute of Chemistry, Saint-Petersburg State University, St. Petersburg 198504, Russia
| | - Vladimir Sharoyko
- Institute of Chemistry, Saint-Petersburg State University, St. Petersburg 198504, Russia
- Department of General and Bioorganic Chemistry, Pavlov First Saint-Petersburg State Medical University, L’va Tolstogo str. 6-8, St. Petersburg 197022, Russia
| | - Viktor Korzhikov-Vlakh
- Institute of Chemistry, Saint-Petersburg State University, St. Petersburg 198504, Russia
| | - Evgenia Korzhikova-Vlakh
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia
- Institute of Chemistry, Saint-Petersburg State University, St. Petersburg 198504, Russia
- Correspondence:
| | - Tatiana Tennikova
- Institute of Chemistry, Saint-Petersburg State University, St. Petersburg 198504, Russia
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Chakraborty M, Banerjee D, Mukherjee S, Karati D. Exploring the advancement of polymer-based nano-formulations for ocular drug delivery systems: an explicative review. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04661-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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10
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Afarid M, Mahmoodi S, Baghban R. Recent achievements in nano-based technologies for ocular disease diagnosis and treatment, review and update. J Nanobiotechnology 2022; 20:361. [PMID: 35918688 PMCID: PMC9344723 DOI: 10.1186/s12951-022-01567-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/19/2022] [Indexed: 11/10/2022] Open
Abstract
Ocular drug delivery is one of the most challenging endeavors among the various available drug delivery systems. Despite having suitable drugs for the treatment of ophthalmic disease, we have not yet succeeded in achieving a proper drug delivery approach with the least adverse effects. Nanotechnology offers great opportunities to overwhelm the restrictions of common ocular delivery systems, including low therapeutic effects and adverse effects because of invasive surgery or systemic exposure. The present review is dedicated to highlighting and updating the recent achievements of nano-based technologies for ocular disease diagnosis and treatment. While further effort remains, the progress illustrated here might pave the way to new and very useful ocular nanomedicines.
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Affiliation(s)
- Mehrdad Afarid
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shirin Mahmoodi
- Department of Medical Biotechnology, School of Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Roghayyeh Baghban
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
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Ciprofloxacin-Loaded Zein/Hyaluronic Acid Nanoparticles for Ocular Mucosa Delivery. Pharmaceutics 2022; 14:pharmaceutics14081557. [PMID: 35893813 PMCID: PMC9332751 DOI: 10.3390/pharmaceutics14081557] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/22/2022] [Accepted: 07/24/2022] [Indexed: 01/03/2023] Open
Abstract
Bacterial conjunctivitis is a worldwide problem that, if untreated, can lead to severe complications, such as visual impairment and blindness. Topical administration of ciprofloxacin is one of the most common treatments for this infection; however, topical therapeutic delivery to the eye is quite challenging. To tackle this, nanomedicine presents several advantages compared to conventional ophthalmic dosage forms. Herein, the flash nanoprecipitation technique was applied to produce zein and hyaluronic acid nanoparticles loaded with ciprofloxacin (ZeinCPX_HA NPs). ZeinCPX_HA NPs exhibited a hydrodynamic diameter of <200 nm and polydispersity index of <0.3, suitable for ocular drug delivery. In addition, the freeze-drying of the nanoparticles was achieved by using mannitol as a cryoprotectant, allowing their resuspension in water without modifying the physicochemical properties. Moreover, the biocompatibility of nanoparticles was confirmed by in vitro assays. Furthermore, a high encapsulation efficiency was achieved, and a release profile with an initial burst was followed by a prolonged release of ciprofloxacin up to 24 h. Overall, the obtained results suggest ZeinCPX_HA NPs as an alternative to the common topical dosage forms available on the market to treat conjunctivitis.
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12
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Melatonin-Eluting Contact Lenses Effect on Tear Volume: In Vitro and In Vivo Experiments. Pharmaceutics 2022; 14:pharmaceutics14051019. [PMID: 35631605 PMCID: PMC9147799 DOI: 10.3390/pharmaceutics14051019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/04/2022] [Accepted: 05/08/2022] [Indexed: 12/16/2022] Open
Abstract
(1) Background: The purpose of this study was to synthesize melatonin-eluting contact lenses (CLs) and evaluate both the ocular kinetics of the released melatonin and its effect on tear volume and intraocular pressure. (2) Methods: In vitro, melatonin-eluting CLs were synthesized by using non-functionalized (HEMA) and functionalized (HEMA/APMA) monomers. In vivo, a short-term prospective and randomized study was performed on 15 rabbits divided into two groups: 12 rabbits wearing functionalized CLs and 3 rabbits without CLs as a control. The melatonin levels in tears, aqueous humor, vitreous body and retina, tear volume, and intraocular pressure were measured for 8 h. (3) Results: In vitro, both monomers did not show differences in terms of melatonin loading and release (p ≥ 0.05). In vivo, the melatonin concentration was elevated in tears and aqueous humor after 2 and 4 h of wearing CLs, respectively (p < 0.05). Additionally, the CLs increased tear volume for 2 h (p < 0.05). (4) Conclusions: The melatonin-eluting CLs released their content over the ocular surface for at least 2 h, which was associated with a secretagogue effect on tear volume. However, the increased amount of melatonin found in the aqueous humor had no effect on intraocular pressure.
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13
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Delrish E, Ghassemi F, Jabbarvand M, Lashay A, Atyabi F, Soleimani M, Dinarvand R. Biodistribution of Cy5-labeled Thiolated and Methylated Chitosan-Carboxymethyl Dextran Nanoparticles in an Animal Model of Retinoblastoma. J Ophthalmic Vis Res 2022; 17:58-68. [PMID: 35194497 PMCID: PMC8850845 DOI: 10.18502/jovr.v17i1.10171] [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: 12/21/2020] [Accepted: 08/11/2021] [Indexed: 11/24/2022] Open
Abstract
Purpose The use of more potent medicine for local chemotherapy of retinoblastoma in order to minimize local and systemic adverse effects is essential. The main goal of this investigation was to assess the biodistribution of thiolated and methylated chitosan-carboxymethyl dextran nanoparticles (CMD-TCs-NPs and CMD-TMC-NPs) following intravitreal (IVT) injection into rat eyes with retinoblastoma. Methods An ionic gelation method was used to fabricate Cy5-labelled CMD-TCs-NPs and CMD-TMC-NPs. The NPs were characterized. Cellular internalization of Cy5-labelled NPs was investigated using confocal microscopy and the absorption of labeled NPs was quantified by flow cytometry in human retinoblastoma (Y79) cells. In addition, the Cy5-labeled distribution of nanoparticles in the posterior segment of the eye was histologically imaged by confocal microscopy after IVT injection of NPs into the eyes of rats with retinoblastoma. Results CMD-TCs-NPs and CMD-TMC-NPs showed a mean diameter of 34 ± 3.78 nm and 42 ± 4.23 nm and zeta potential of +11 ± 2.27 mV and +29 ± 4.31mV, respectively. The in vivo study of intraocular biodistribution of Cy5-labeled CMD-TCs-NPs and CMD-TMC-NPs revealed that there is more affinity of CMD-TCs-NPs to the retina and retinoblastoma tumor after IVT administration while methylated chitosan nanoparticles are immobilized in the vitreous and are not able to reach the retina even after 24 hr. Conclusion The ionic gelation technique was efficient in synthesizing a biocompatible polymeric nanosystem for drug delivery into the posterior segment of the eye. The current study demonstrated increased ocular bioavailability of CMD-TCs-NPs relative to CMD-TMC-NPs in retinoblastoma induced rat eyes.
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Affiliation(s)
- Elham Delrish
- Translational Ophthalmology Research Centre, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Fariba Ghassemi
- Translational Ophthalmology Research Centre, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran.,Retina & Vitreous Service, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmoud Jabbarvand
- Translational Ophthalmology Research Centre, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Lashay
- Translational Ophthalmology Research Centre, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Atyabi
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoud Soleimani
- Department of Hematology, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Rassoul Dinarvand
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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14
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Yang J, Ma Y, Luo Q, Liang Z, Lu P, Song F, Zhang Z, Zhou T, Zhang J. Improving the solubility of vorinostat using cyclodextrin inclusion complexes: The physicochemical characteristics, corneal permeability and ocular pharmacokinetics of the drug after topical application. Eur J Pharm Sci 2022; 168:106078. [PMID: 34838620 DOI: 10.1016/j.ejps.2021.106078] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/27/2021] [Accepted: 11/17/2021] [Indexed: 02/08/2023]
Abstract
Vorinostat (suberoylanilide hydroxamic acid, SAHA), an FDA-approved drug for cutaneous T cell lymphoma, has antiangiogenic and anti-inflammatory activity and thus has therapeutic potential for inflammatory corneal neovascularization (CNV). However, its practical administration is limited due to its poor aqueous solubility and permeability. This study aimed to enhance the corneal permeability of SAHA by promoting its inclusion into a complex with hydroxypropyl-β-CD (HPβCD) for topical application. In phase-solubility studies, the solubility of SAHA with HPβCD and sulfobutyl ether-β-CD (SEβCD) was assessed at different temperatures, and complexation efficiencies (K) were calculated. The inclusion complexes (ICs) were prepared and characterized by differential scanning calorimetry (DSC), infrared spectrometry (IR), scanning electron microscopy (SEM), and X-ray diffraction (XRD) after freeze-drying. The phase-solubility study showed that the complexation efficiencies of SAHA were higher in HPβCD solutions (297.35 M-1, 115.28 M-1 and 122.75 M-1) than in SEβCD solutions (169.75 M-1, 91.33 M-1 and 96.49 M-1) at 4 °C, 25 °C and 37 °C. HPβCD was selected for SAHA-IC preparation, and characterization revealed IC formation. SAHA existed in an amorphous state in the ICs. The ex vivo corneal permeability of SAHA was also evaluated and found to be greater when formulated as an HPβCD solution than as a suspension. Irritation assays in rabbit eyes showed that the SAHA-IC solution was not irritating after topical application. The ocular pharmacokinetics of SAHA in New Zealand White rabbits were assessed following topical administration (0.2%), and a 0.2% SAHA suspension was used as the control. Compared to its formulation as a suspension, the formulation of SAHA as an HPβCD solution increased its corneal bioavailability by more than 3-fold and its conjunctival bioavailability by more than 2-fold. Thus, IC formation was effective at improving the ocular bioavailability of SAHA. This study provides an important alternative approach for developing liquid pharmaceutical formulations of SAHA for topical ocular applications.
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Affiliation(s)
- Jingjing Yang
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, No. 7 Weiwu Road, Zhengzhou 450003, China
| | - Yu Ma
- Henan University of Traditional Chinese Medicine, No. 156 Jinshui East Road, Zhengzhou 450000, China
| | - Qing Luo
- Department of Pharmacy, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, No. 7 Weiwu Road, Zhengzhou 450003, China
| | - Zhen Liang
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, No. 7 Weiwu Road, Zhengzhou 450003, China
| | - Ping Lu
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, No. 7 Weiwu Road, Zhengzhou 450003, China
| | - Fei Song
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, No. 7 Weiwu Road, Zhengzhou 450003, China
| | - Zhen Zhang
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, No. 7 Weiwu Road, Zhengzhou 450003, China
| | - Tianyang Zhou
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, No. 7 Weiwu Road, Zhengzhou 450003, China
| | - Junjie Zhang
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, No. 7 Weiwu Road, Zhengzhou 450003, China.
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15
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Enhanced topical corticosteroids delivery to the eye: A trade-off in strategy choice. J Control Release 2021; 339:91-113. [PMID: 34560157 DOI: 10.1016/j.jconrel.2021.09.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 09/16/2021] [Accepted: 09/18/2021] [Indexed: 12/19/2022]
Abstract
Topical corticosteroids are the primary treatment of ocular inflammation caused by surgery, injury, or other conditions. Drug pre-corneal residence time, drug water solubility, and drug corneal permeability coefficient are the major factors that determine the ocular drug bioavailability after topical administration. Although growing research successfully enhanced local delivery of corticosteroids utilizing various strategies, rational and dynamic approaches to strategy selection are still lacking. Within this review, an overview of the various strategies as well as their performance in retention, solubility, and permeability coefficient of corticosteroids are provided. On this basis, the tradeoff of strategy selection is discussed, which may shed light on the rational choice and application of ophthalmic delivery enhancement strategies.
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16
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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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17
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Hyaluronic acid in ocular drug delivery. Carbohydr Polym 2021; 264:118006. [DOI: 10.1016/j.carbpol.2021.118006] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 12/12/2022]
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18
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Yin C, Qi X, Wu J, Guo C, Wu X. Therapeutic contact lenses fabricated by hyaluronic acid and silver incorporated bovine serum albumin porous films for the treatment of alkali-burned corneal wound. Int J Biol Macromol 2021; 184:713-720. [PMID: 34181997 DOI: 10.1016/j.ijbiomac.2021.06.155] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/13/2021] [Accepted: 06/22/2021] [Indexed: 11/28/2022]
Abstract
Hyaluronic acid (HA) was covalently linked to the surface of bovine serum albumin/silver (BSA/Ag) porous films to fabricate a possible contact lens. The BSA/Ag/HA films showed favorable properties as contact lenses, including acceptable transparency, high water content, good hemocompatibility, non-cytotoxicity and antibacterial properties. The therapeutic potential of the BSA/Ag/HA films was evaluated on an alkali burn-induced corneal injury model on mice. The corneal healing rate was enhanced, the corneal opacification and neovascularization were lessened, and the inflammation response was reduced. The chemical cross-linking of HA on the films prolonged the retention time of HA on the corneal surface, thus enhanced the drug efficacy and improved the patient compliance, proving the high potential of BSA/Ag/HA films as contact lenses.
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Affiliation(s)
- Chuanjin Yin
- Department of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Zhengzhou Road 53, Qingdao 266042, China
| | - Xueju Qi
- Department of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Zhengzhou Road 53, Qingdao 266042, China
| | - Jing Wu
- Department of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Zhengzhou Road 53, Qingdao 266042, China
| | - Chuanlong Guo
- Department of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Zhengzhou Road 53, Qingdao 266042, China.
| | - Xiaochen Wu
- Department of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Zhengzhou Road 53, Qingdao 266042, China.
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19
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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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20
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Safwat MA, Mansour HF, Hussein AK, Abdelwahab S, Soliman GM. Polymeric micelles for the ocular delivery of triamcinolone acetonide: preparation and in vivo evaluation in a rabbit ocular inflammatory model. Drug Deliv 2021; 27:1115-1124. [PMID: 32720545 PMCID: PMC7470058 DOI: 10.1080/10717544.2020.1797241] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The aim of this study was to prepare triamcinolone acetonide (TA)-loaded poly(ethylene glycol)-block-poly(ε-caprolactone) (PEG-b-PCL) and poly(ethylene glycol)-block-poly(lactic acid) (PEG-b-PLA) micelles as a potential treatment of ocular inflammation. The micelles were evaluated for particle size, drug loading capacity and drug release kinetics. Selected micellar formulations were dispersed into chitosan hydrogel and their anti-inflammatory properties were tested in rabbits using a carrageenan-induced ocular inflammatory model. Particle size ranged from 59.44 ± 0.15 to 64.26 ± 0.55 nm for PEG-b-PCL and from 136.10 ± 1.57 to 176.80 ± 2.25 nm for PEG-b-PLA micelles, respectively. The drug loading capacity was in the range of 6–12% and 15–25% for PEG-b-PCL and PEG-b-PLA micelles, respectively and was dependent on the drug/polymer weight ratio. TA aqueous solubility was increased by 5- and 10-fold after loading into PEG-b-PCL and PEG-b-PLA micelles at a polymer concentration as low as 0.5 mg/mL, respectively. PEG-b-PLA micelles suspended in chitosan hydrogel were able to sustain the drug release where only 42.8 ± 1.6% drug was released in one week. TA/PEG-b-PLA micelles suspended in chitosan hydrogel had better anti-inflammatory effects compared with the plain drug hydrogel or the drug micellar solution. Complete disappearance of the corneal inflammatory changes was observed for the micellar hydrogel. These results confirm the potential of PEG-b-PLA micelles suspended in chitosan hydrogel to enhance the anti-inflammatory properties of triamcinolone acetonide.
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Affiliation(s)
- Mohamed A Safwat
- Department of Pharmaceutics, Faculty of Pharmacy, South Valley University, Qena, Egypt
| | - Heba F Mansour
- Department of Pharmaceutics, Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Amal K Hussein
- Department of Pharmaceutics, Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Soha Abdelwahab
- Department of Histology and Cell Biology, Faculty of Medicine, Minia University, Minia, Egypt.,Department of Basic Medical Sciences, Deraya University, New Minia, Egypt
| | - Ghareb M Soliman
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut, Egypt.,Department of Pharmaceutics, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia
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21
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Štrympl O, Vohlídal J, Hermannová M, Maldonado-Domínguez M, Brandejsová M, Kopecká K, Velebný V, Huerta-Ángeles G. Oleate-modified hyaluronan: Controlling the number and distribution of side chains by varying the reaction conditions. Carbohydr Polym 2021; 267:118197. [PMID: 34119164 DOI: 10.1016/j.carbpol.2021.118197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 05/11/2021] [Accepted: 05/11/2021] [Indexed: 11/27/2022]
Abstract
In this work, low molecular weight hyaluronan was chemically modified by oleoyl moieties utilising mixed anhydrides methodology. The activation of oleic acid with benzoyl chloride in organic solvents miscible with water was followed by NMR spectroscopy. The product selectivity correlates with the solvent's Hildebrand solubility parameter. Furthermore, the effect of the solvent for the mixed anhydride formation was elucidated by density functional theory (DFT) and showed that the reactions are faster in acetonitrile or alcohols than in hexane. Furthermore, the solvent demonstrated to control the substituent distribution pattern along HA chain during esterification. An even distribution of substituents was observed in reactions performed in water mixed with ethers. The substituent distribution pattern clearly influenced the aggregation behaviour of amphiphilic HA, controlling the stability of the delivery system, while increasing the encapsulation capacity.
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Affiliation(s)
- Ondřej Štrympl
- Contipro a.s., Dolni Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic; Charles University, Faculty of Science, Department of Physical and Macromolecular Chemistry, Hlavova 2030/8, 128 40 Prague 2, Czech Republic
| | - Jiří Vohlídal
- Charles University, Faculty of Science, Department of Physical and Macromolecular Chemistry, Hlavova 2030/8, 128 40 Prague 2, Czech Republic
| | | | - Mauricio Maldonado-Domínguez
- Department of Computational Chemistry, J. Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences, Prague, Dolejškova 2155/3, 182 23 Prague 8, Czech Republic
| | | | - Kateřina Kopecká
- Contipro a.s., Dolni Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
| | - Vladimír Velebný
- Contipro a.s., Dolni Dobrouč 401, 561 02 Dolní Dobrouč, Czech Republic
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22
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Huerta Ángeles G, Nešporová K. Hyaluronan and its derivatives for ophthalmology: Recent advances and future perspectives. Carbohydr Polym 2021; 259:117697. [DOI: 10.1016/j.carbpol.2021.117697] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 01/20/2021] [Accepted: 01/20/2021] [Indexed: 12/26/2022]
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23
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Gote V, Ansong M, Pal D. Prodrugs and nanomicelles to overcome ocular barriers for drug penetration. Expert Opin Drug Metab Toxicol 2020; 16:885-906. [PMID: 32729364 DOI: 10.1080/17425255.2020.1803278] [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] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Ocular barriers hinder drug delivery and reduce drug bioavailability. This article focuses on enhancing drug absorption across the corneal and conjunctival epithelium. Both, transporter targeted prodrug formulations and nanomicellar strategy is proven to enhance the drug permeation of therapeutic agents across various ocular barriers. These strategies can increase aqueous drug solubility and stability of many hydrophobic drugs for topical ophthalmic formulations. AREAS COVERED The article discusses various ocular barriers, ocular influx, and efflux transporters. It elaborates various prodrug strategies used for enhancing drug absorption. Along with this, the article also describes nanomicellar formulation, its characteristic and advantages, and applications in for anterior and posterior segment drug delivery. EXPERT OPINION Prodrugs and nanomicellar formulations provide an effective strategy for improving drug absorption and drug bioavailability across various ocular barriers. It will be exciting to see the efficacy of nanomicelles for treating back of the eye disorders after their topical application. This is considered as a holy grail of ocular drug delivery due to the dynamic and static ocular barriers, restricting posterior entry of topically applied drug formulations.
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Affiliation(s)
- Vrinda Gote
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City , Kansas City, MO, USA
| | - Michael Ansong
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City , Kansas City, MO, USA
| | - Dhananjay Pal
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City , Kansas City, MO, USA
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24
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Dubashynskaya N, Poshina D, Raik S, Urtti A, Skorik YA. Polysaccharides in Ocular Drug Delivery. Pharmaceutics 2019; 12:E22. [PMID: 31878298 PMCID: PMC7023054 DOI: 10.3390/pharmaceutics12010022] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 12/19/2019] [Accepted: 12/22/2019] [Indexed: 02/07/2023] Open
Abstract
Polysaccharides, such as cellulose, hyaluronic acid, alginic acid, and chitosan, as well as polysaccharide derivatives, have been successfully used to augment drug delivery in the treatment of ocular pathologies. The properties of polysaccharides can be extensively modified to optimize ocular drug formulations and to obtain biocompatible and biodegradable drugs with improved bioavailability and tailored pharmacological effects. This review discusses the available polysaccharide choices for overcoming the difficulties associated with ocular drug delivery, and it explores the reasons for the dependence between the physicochemical properties of polysaccharide-based drug carriers and their efficiency in different formulations and applications. Polysaccharides will continue to be of great interest to researchers endeavoring to develop ophthalmic drugs with improved effectiveness and safety.
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Affiliation(s)
- Natallia Dubashynskaya
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr. V.O. 31, 199004 St. Petersburg, Russia; (N.D.); (D.P.); (S.R.)
| | - Daria Poshina
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr. V.O. 31, 199004 St. Petersburg, Russia; (N.D.); (D.P.); (S.R.)
| | - Sergei Raik
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr. V.O. 31, 199004 St. Petersburg, Russia; (N.D.); (D.P.); (S.R.)
- Institute of Chemistry, St. Petersburg State University, Universitetskii pr. 26, Petrodvorets, 198504 St. Petersburg, Russia;
| | - Arto Urtti
- Institute of Chemistry, St. Petersburg State University, Universitetskii pr. 26, Petrodvorets, 198504 St. Petersburg, Russia;
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, FI-00014 Helsinki, Finland
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, 70210 Kuopio, Finland
| | - Yury A. Skorik
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr. V.O. 31, 199004 St. Petersburg, Russia; (N.D.); (D.P.); (S.R.)
- Institute of Chemistry, St. Petersburg State University, Universitetskii pr. 26, Petrodvorets, 198504 St. Petersburg, Russia;
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25
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Paolino M, Licciardi M, Savoca C, Giammona G, Modica De Mohac L, Reale A, Giuliani G, Komber H, Donati A, Leone G, Magnani A, Anzini M, Cappelli A. Hyaluronan Graft Copolymers Bearing Fatty-Acid Residues as Self-Assembling Nanoparticles for Olanzapine Delivery. Pharmaceutics 2019; 11:E675. [PMID: 31842344 PMCID: PMC6956235 DOI: 10.3390/pharmaceutics11120675] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/06/2019] [Accepted: 12/09/2019] [Indexed: 11/16/2022] Open
Abstract
In order to evaluate the potential of a technology platform based on hyaluronan copolymers grafted with propargylated ferulate fluorophores (HA-FA-Pg) in the development of drug delivery systems, the propargyl groups of HA-FA-Pg derivatives were employed with oleic acid (OA) or stearic acid (SA) residues across a biocompatible hexa(ethylene glycol) (HEG) spacer. The designed materials (i.e., HA-FA-HEG-OA or HA-FA-HEG-SA) showed clear-cut aggregation features in an aqueous environment, as confirmed by dynamic light scattering (DLS) and transmission electron microscopy (TEM), generating nanoaggregate systems. In fact, HA-FA-HEG-OA and HA-FA-HEG-SA derivatives showed the property to create self-assembled cytocompatible nanostructured aggregates in water, thanks to the simultaneous presence of hydrophilic portions in the polymeric backbone, such as hyaluronic acid, and hydrophobic portions in the side chains. Furthermore, the designed materials interact with living cells showing a high degree of cytocompatibility. The potential ability of nanosystems to load pharmacologically active molecules was assessed by the physical entrapment of olanzapine into both polymeric systems. The drug loading evaluation demonstrated that the nanoparticles are able to incorporate a good quantity of olanzapine, as well as improve drug solubility, release profile, and cytocompatibility.
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Affiliation(s)
- Marco Paolino
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di Siena, Via A. Moro 2, 53100 Siena, Italy; (A.R.); (G.G.); (A.D.); (G.L.); (A.M.); (M.A.); (A.C.)
| | - Mariano Licciardi
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy; (M.L.); (C.S.); (G.G.)
| | - Cristina Savoca
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy; (M.L.); (C.S.); (G.G.)
| | - Gaetano Giammona
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy; (M.L.); (C.S.); (G.G.)
| | - Laura Modica De Mohac
- Dipartimento Promozione della Salute, Materno-Infantile, di Medicina Interna e Specialistica di Eccellenza “G. D’Alessandro” (PROMISE), Università degli Studi di Palermo, 90100 Palermo, Italy;
| | - Annalisa Reale
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di Siena, Via A. Moro 2, 53100 Siena, Italy; (A.R.); (G.G.); (A.D.); (G.L.); (A.M.); (M.A.); (A.C.)
| | - Germano Giuliani
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di Siena, Via A. Moro 2, 53100 Siena, Italy; (A.R.); (G.G.); (A.D.); (G.L.); (A.M.); (M.A.); (A.C.)
| | - Hartmut Komber
- Leibniz Institute of Polymer Research, Hohe Strasse 6, 01069 Dresden, Germany;
| | - Alessandro Donati
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di Siena, Via A. Moro 2, 53100 Siena, Italy; (A.R.); (G.G.); (A.D.); (G.L.); (A.M.); (M.A.); (A.C.)
| | - Gemma Leone
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di Siena, Via A. Moro 2, 53100 Siena, Italy; (A.R.); (G.G.); (A.D.); (G.L.); (A.M.); (M.A.); (A.C.)
| | - Agnese Magnani
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di Siena, Via A. Moro 2, 53100 Siena, Italy; (A.R.); (G.G.); (A.D.); (G.L.); (A.M.); (M.A.); (A.C.)
| | - Maurizio Anzini
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di Siena, Via A. Moro 2, 53100 Siena, Italy; (A.R.); (G.G.); (A.D.); (G.L.); (A.M.); (M.A.); (A.C.)
| | - Andrea Cappelli
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di Siena, Via A. Moro 2, 53100 Siena, Italy; (A.R.); (G.G.); (A.D.); (G.L.); (A.M.); (M.A.); (A.C.)
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26
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Pescina S, Lucca LG, Govoni P, Padula C, Favero ED, Cantù L, Santi P, Nicoli S. Ex Vivo Conjunctival Retention and Transconjunctival Transport of Poorly Soluble Drugs Using Polymeric Micelles. Pharmaceutics 2019; 11:pharmaceutics11090476. [PMID: 31540066 PMCID: PMC6781556 DOI: 10.3390/pharmaceutics11090476] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 09/10/2019] [Accepted: 09/10/2019] [Indexed: 12/14/2022] Open
Abstract
This paper addresses the problem of ocular delivery of lipophilic drugs. The aim of the paper is the evaluation of polymeric micelles, prepared using TPGS (d-α-Tocopheryl polyethylene glycol 1000 succinate), a water-soluble derivative of Vitamin E and/or poloxamer 407, as a vehicle for the ocular delivery of dexamethasone, cyclosporine, and econazole nitrate. The research steps were: (1) characterize polymeric micelles by dynamic light scattering (DLS) and X-ray scattering; (2) evaluate the solubility increase of the three drugs; (3) measure the in vitro transport and conjunctiva retention, in comparison to conventional vehicles; (4) investigate the mechanisms of enhancement, by studying drug release from the micelles and transconjunctival permeation of TPGS; and (5) study the effect of micelles application on the histology of conjunctiva. The data obtained demonstrate the application potential of polymeric micelles in ocular delivery, due to their ability to increase the solubility of lipophilic drugs and enhance transport in and across the conjunctival epithelium. The best-performing formulation was the one made of TPGS alone (micelles size ≈ 12 nm), probably because of the higher mobility of these micelles, an enhanced interaction with the conjunctival epithelium, and, possibly, the penetration of intact micelles.
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Affiliation(s)
- Silvia Pescina
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy.
| | - Leticia Grolli Lucca
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy.
| | - Paolo Govoni
- Department of Medicine and Surgery, University of Parma, via Volturno 39, 43126 Parma, Italy.
| | - Cristina Padula
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy.
| | - Elena Del Favero
- Department of Medical Biotechnologies and Translational Medicine, LITA, University of Milan, 20090 Segrate (MI), Italy.
| | - Laura Cantù
- Department of Medical Biotechnologies and Translational Medicine, LITA, University of Milan, 20090 Segrate (MI), Italy.
| | - Patrizia Santi
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy.
| | - Sara Nicoli
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy.
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Lynch C, Kondiah PPD, Choonara YE, du Toit LC, Ally N, Pillay V. Advances in Biodegradable Nano-Sized Polymer-Based Ocular Drug Delivery. Polymers (Basel) 2019; 11:E1371. [PMID: 31434273 PMCID: PMC6722735 DOI: 10.3390/polym11081371] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 07/27/2019] [Accepted: 08/06/2019] [Indexed: 12/11/2022] Open
Abstract
The effective delivery of drugs to the eye remains a challenge. The eye has a myriad of defense systems and physiological barriers that leaves ocular drug delivery systems with low bioavailability profiles. This is mainly due to poor permeability through the epithelia and rapid clearance from the eye following administration. However, recent advances in both polymeric drug delivery and biomedical nanotechnology have allowed for improvements to be made in the treatment of ocular conditions. The employment of biodegradable polymers in ocular formulations has led to improved retention time, greater bioavailability and controlled release through mucoadhesion to the epithelia in the eye, amongst other beneficial properties. Nanotechnology has been largely investigated for uses in the medical field, ranging from diagnosis of disease to treatment. The nanoscale of these developing drug delivery systems has helped to improve the penetration of drugs through the various ocular barriers, thus improving bioavailability. This review will highlight the physiological barriers encountered in the eye, current conventional treatment methods as well as how polymeric drug delivery and nanotechnology can be employed to optimize drug penetration to both the anterior and posterior segment of the eye.
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Affiliation(s)
- Courtney Lynch
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa
| | - Pierre P D Kondiah
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa
| | - Yahya E Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa
| | - Lisa C du Toit
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa
| | - Naseer Ally
- Division of Ophthalmology, Department of Neurosciences, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa
| | - Viness Pillay
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
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Kim K, Choi H, Choi ES, Park MH, Ryu JH. Hyaluronic Acid-Coated Nanomedicine for Targeted Cancer Therapy. Pharmaceutics 2019; 11:E301. [PMID: 31262049 PMCID: PMC6680416 DOI: 10.3390/pharmaceutics11070301] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 06/25/2019] [Accepted: 06/26/2019] [Indexed: 11/24/2022] Open
Abstract
Hyaluronic acid (HA) has been widely investigated in cancer therapy due to its excellent characteristics. HA, which is a linear anionic polymer, has biocompatibility, biodegradability, non-immunogenicity, non-inflammatory, and non-toxicity properties. Various HA nanomedicines (i.e., micelles, nanogels, and nanoparticles) can be prepared easily using assembly and modification of its functional groups such as carboxy, hydroxy and N-acetyl groups. Nanometer-sized HA nanomedicines can selectively deliver drugs or other molecules into tumor sites via their enhanced permeability and retention (EPR) effect. In addition, HA can interact with overexpressed receptors in cancer cells such as cluster determinant 44 (CD44) and receptor for HA-mediated motility (RHAMM) and be degraded by a family of enzymes called hyaluronidase (HAdase) to release drugs or molecules. By interaction with receptors or degradation by enzymes inside cancer cells, HA nanomedicines allow enhanced targeting cancer therapy. In this article, recent studies about HA nanomedicines in drug delivery systems, photothermal therapy, photodynamic therapy, diagnostics (because of the high biocompatibility), colloidal stability, and cancer targeting are reviewed for strategies using micelles, nanogels, and inorganic nanoparticles.
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Affiliation(s)
- Kibeom Kim
- Department of Chemistry, School of Natural Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea
| | - Huyeon Choi
- Department of Chemistry, School of Natural Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea
| | - Eun Seong Choi
- Department of Chemistry, School of Natural Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea
| | - Myoung-Hwan Park
- Department of Chemistry and Life Science, Sahmyook University, Seoul 01795, Korea.
| | - Ja-Hyoung Ryu
- Department of Chemistry, School of Natural Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea.
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29
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Grimaudo MA, Pescina S, Padula C, Santi P, Concheiro A, Alvarez-Lorenzo C, Nicoli S. Topical application of polymeric nanomicelles in ophthalmology: a review on research efforts for the noninvasive delivery of ocular therapeutics. Expert Opin Drug Deliv 2019; 16:397-413. [PMID: 30889977 DOI: 10.1080/17425247.2019.1597848] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
INTRODUCTION Polymeric micelles represent nowadays an interesting formulative approach for ocular drug delivery, as they act as solubility enhancers of poorly soluble drugs and promote drug transport across cornea and sclera. In particular, in the last 5 years polymeric nanomicelles have been increasingly investigated to overcome some of the important challenges of the topical treatment of ocular diseases. AREAS COVERED The aim of this review was to gather up-to-date information on the different roles that polymeric micelles (commonly in the nanosize scale) can play in ocular delivery. Thus, after a general description of ocular barriers and micelles features, the attention is focused on those properties that are relevant for ophthalmic application. Finally, their efficacy in improving the ocular delivery of different classes of therapeutics (anti-inflammatory, immunosuppressant, antiglaucoma, antifungal, and antiviral drugs) are reported. EXPERT OPINION Although still a few, in vivo experiments have clearly demonstrated the capability of polymeric nanomicelles to overcome a variety of hurdles associated to ocular therapy, notably increasing drug bioavailability. However, there are still some very important issues to be solved, such as tolerability and stability; additionally, the role of micelles in drug uptake by the ocular tissues and their potential for the treatment of posterior eye diseases still need to be clarified/verified.
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Affiliation(s)
| | - Silvia Pescina
- a Department of Food and Drug , University of Parma , Parma , Italy
| | - Cristina Padula
- a Department of Food and Drug , University of Parma , Parma , Italy
| | - Patrizia Santi
- a Department of Food and Drug , University of Parma , Parma , Italy
| | - Angel Concheiro
- b Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+DPharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS) , Universidade de Santiago de Compostela , Santiago de Compostela , Spain
| | - Carmen Alvarez-Lorenzo
- b Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+DPharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS) , Universidade de Santiago de Compostela , Santiago de Compostela , Spain
| | - Sara Nicoli
- a Department of Food and Drug , University of Parma , Parma , Italy
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Suárez-Barrio C, Etxebarria J, Hernáez-Moya R, Del Val-Alonso M, Rodriguez-Astigarraga M, Urkaregi A, Freire V, Morales MC, Durán JA, Vicario M, Molina I, Herrero-Vanrell R, Andollo N. Hyaluronic Acid Combined with Serum Rich in Growth Factors in Corneal Epithelial Defects. Int J Mol Sci 2019; 20:ijms20071655. [PMID: 30987108 PMCID: PMC6480555 DOI: 10.3390/ijms20071655] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/29/2019] [Accepted: 03/30/2019] [Indexed: 12/30/2022] Open
Abstract
The aim of this study is to assess if an adhesive biopolymer, sodium hyaluronate (NaHA), has synergistic effects with s-PRGF (a serum derived from plasma rich in growth factors and a blood derivative that has already shown efficacy in corneal epithelial wound healing), to reduce time of healing or posology. In vitro proliferation and migration studies, both in human corneal epithelial (HCE) cells and in rabbit primary corneal epithelial (RPCE) cultures, were carried out. In addition, we performed studies of corneal wound healing in vivo in rabbits treated with s-PRGF, NaHA, or the combination of both. We performed immunohistochemistry techniques (CK3, CK15, Ki67, ß4 integrin, ZO-1, α-SMA) in rabbit corneas 7 and 30 days after a surgically induced epithelial defect. In vitro results show that the combination of NaHA and s-PRGF offers the worst proliferation rates in both HCE and RPCE cells. Addition of NaHA to s-PRGF diminishes the re-epithelializing capability of s-PRGF. In vivo, all treatments, given twice a day, showed equivalent efficacy in corneal epithelial healing. We conclude that the combined use of s-PRGF and HaNA as an adhesive biopolymer does not improve the efficacy of s-PRGF alone in the wound healing of corneal epithelial defects.
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Affiliation(s)
- Carlota Suárez-Barrio
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
| | - Jaime Etxebarria
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
- Department of Ophthalmology, University Hospital of Cruces, BioCruces Health Research Institute, Begiker, 48903 Barakaldo, Spain.
| | - Raquel Hernáez-Moya
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
| | - Marina Del Val-Alonso
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
| | - Maddalen Rodriguez-Astigarraga
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
| | - Arantza Urkaregi
- Department of Applied Mathematics and Statistics and Operational Research, BioCruces Health Research Institute, 48940 Leioa, Spain.
| | - Vanesa Freire
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
- R & D Department, Instituto Clínico-Quirúrgico de Oftalmología, 48006 Bilbao, Spain.
| | - María-Celia Morales
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
| | - Juan Antonio Durán
- R & D Department, Instituto Clínico-Quirúrgico de Oftalmología, 48006 Bilbao, Spain.
- Department of Dermatology, Otorhinolaryngology and Ophthalmology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
| | - Marta Vicario
- Pharmaceutical Innovation in Ophthalmology (InnOftal) UCM Research Group 920415. Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University, 28040 Madrid, Spain.
| | - Irene Molina
- Pharmaceutical Innovation in Ophthalmology (InnOftal) UCM Research Group 920415. Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University, 28040 Madrid, Spain.
| | - Rocío Herrero-Vanrell
- Pharmaceutical Innovation in Ophthalmology (InnOftal) UCM Research Group 920415. Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University, 28040 Madrid, Spain.
| | - Noelia Andollo
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
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Di Prima G, Bongiovì F, Palumbo FS, Pitarresi G, Licciardi M, Giammona G. Mucoadhesive PEGylated inulin-based self-assembling nanoparticles: In vitro and ex vivo transcorneal permeation enhancement of corticosteroids. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2018.10.028] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Paolino M, Reale A, Razzano V, Giuliani G, Donati A, Bonechi C, Caselli G, Visintin M, Makovec F, Scialabba C, Licciardi M, Paccagnini E, Gentile M, Salvini L, Tavanti F, Menziani MC, Cappelli A. Nanoreactors for the multi-functionalization of poly-histidine fragments. NEW J CHEM 2019. [DOI: 10.1039/c9nj00279k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Water-soluble MBHA derivatives self-assemble to generate aggregates showing reactive core–shell architectures.
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Bongiovì F, Fiorica C, Palumbo FS, Di Prima G, Giammona G, Pitarresi G. Imatinib-Loaded Micelles of Hyaluronic Acid Derivatives for Potential Treatment of Neovascular Ocular Diseases. Mol Pharm 2018; 15:5031-5045. [DOI: 10.1021/acs.molpharmaceut.8b00620] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Flavia Bongiovì
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy
| | - Calogero Fiorica
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy
| | - Fabio S. Palumbo
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy
| | - Giulia Di Prima
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy
| | - Gaetano Giammona
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy
- Institute of Biophysics at Palermo, Italian National Research Council, Via Ugo La Malfa 153, 90146 Palermo, Italy
| | - Giovanna Pitarresi
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy
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