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Brugnera M, Vicario-de-la-Torre M, González-Cela Casamayor MA, López-Cano JJ, Bravo-Osuna I, Huete-Toral F, González Rubio ML, Carracedo G, Molina-Martínez IT, Andrés-Guerrero V, Herrero-Vanrell R. Enhancing the hypotensive effect of latanoprost by combining synthetic phosphatidylcholine liposomes with hyaluronic acid and osmoprotective agents. Drug Deliv Transl Res 2024:10.1007/s13346-024-01584-z. [PMID: 38602615 DOI: 10.1007/s13346-024-01584-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2024] [Indexed: 04/12/2024]
Abstract
The first line of glaucoma treatment focuses on reducing intraocular pressure (IOP) through the prescription of topical prostaglandin analogues, such as latanoprost (LAT). Topical ophthalmic medicines have low bioavailability due to their rapid elimination from the ocular surface. Nanotechnology offers innovative ways of enhancing the ocular bioavailability of antiglaucoma agents while reducing administration frequency. This study aims to combine LAT-loaded synthetic phosphatidylcholine liposomes with hyaluronic acid (0.2% w/v) and the osmoprotectants betaine (0.40% w/v) and leucine (0.90% w/v) (LAT-HA-LIP) to extend the hypotensive effect of LAT while protecting the ocular surface. LAT-HA-LIP was prepared as a mixture of 1,2-dioleoyl-sn-glycero-3-phosphocholine and 1,2-dimyristoyl-sn-glycero-3-phosphocholine, cholesterol and α-tocopherol acetate. LAT-HA-LIP exhibited high drug-loading capacity (104.52 ± 4.10%), unimodal vesicle sizes (195.14 ± 14.34 nm) and a zeta potential of -13.96 ± 0.78 mV. LAT-HA-LIP was isotonic (284.00 ± 1.41 mOsm L-1), had neutral pH (7.63 ± 0.01) and had suitable surface tension (44.07 ± 2.70 mN m-1) and viscosity (2.69 ± 0.15 mPa s-1) for topical ophthalmic administration. LAT-HA-LIP exhibited optimal in vitro tolerance in human corneal and conjunctival epithelial cells. No signs of ocular alteration or discomfort were observed when LAT-HA-LIP was instilled in albino male New Zealand rabbits. Hypotensive studies revealed that, after a single eye drop, the effect of LAT-HA-LIP lasted 24 h longer than that of a marketed formulation and that relative ocular bioavailability was almost three times higher (p < 0.001). These findings indicate the potential ocular protection and hypotensive effect LAT-HA-LIP offers in glaucoma treatment.
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Affiliation(s)
- Marco Brugnera
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, Complutense University of Madrid (UCM), Madrid, Spain
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, UCM; IdISSC, Madrid, Spain
- University Institute of Industrial Pharmacy (IUFI), Faculty of Pharmacy, UCM, Madrid, Spain
| | - Marta Vicario-de-la-Torre
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, Complutense University of Madrid (UCM), Madrid, Spain
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, UCM; IdISSC, Madrid, Spain
- University Institute of Industrial Pharmacy (IUFI), Faculty of Pharmacy, UCM, Madrid, Spain
| | - Miriam Ana González-Cela Casamayor
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, Complutense University of Madrid (UCM), Madrid, Spain
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, UCM; IdISSC, Madrid, Spain
| | - José Javier López-Cano
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, Complutense University of Madrid (UCM), Madrid, Spain
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, UCM; IdISSC, Madrid, Spain
| | - Irene Bravo-Osuna
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, Complutense University of Madrid (UCM), Madrid, Spain
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, UCM; IdISSC, Madrid, Spain
- University Institute of Industrial Pharmacy (IUFI), Faculty of Pharmacy, UCM, Madrid, Spain
| | - Fernando Huete-Toral
- Ocupharm Research Group, Department of Optometry and Vision, Faculty of Optics and Optometry, UCM, Madrid, Spain
| | - María Luisa González Rubio
- Ocupharm Research Group, Department of Optometry and Vision, Faculty of Optics and Optometry, UCM, Madrid, Spain
| | - Gonzalo Carracedo
- Ocupharm Research Group, Department of Optometry and Vision, Faculty of Optics and Optometry, UCM, Madrid, Spain
| | - Irene Teresa Molina-Martínez
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, Complutense University of Madrid (UCM), Madrid, Spain
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, UCM; IdISSC, Madrid, Spain
- University Institute of Industrial Pharmacy (IUFI), Faculty of Pharmacy, UCM, Madrid, Spain
| | - Vanessa Andrés-Guerrero
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, Complutense University of Madrid (UCM), Madrid, Spain.
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, UCM; IdISSC, Madrid, Spain.
- University Institute of Industrial Pharmacy (IUFI), Faculty of Pharmacy, UCM, Madrid, Spain.
| | - Rocío Herrero-Vanrell
- Innovation, Therapy and Pharmaceutical Development in Ophthalmology (InnOftal) Research Group, Complutense University of Madrid (UCM), Madrid, Spain.
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, UCM; IdISSC, Madrid, Spain.
- University Institute of Industrial Pharmacy (IUFI), Faculty of Pharmacy, UCM, Madrid, Spain.
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Haase A, Miroschnikov N, Klein S, Doege A, Dünker N, Van Meenen D, Junker A, Göpferich A, Apaolaza PS, Busch MA. New retinoblastoma (RB) drug delivery approaches: anti-tumor effect of atrial natriuretic peptide (ANP)-conjugated hyaluronic-acid-coated gold nanoparticles for intraocular treatment of chemoresistant RB. Mol Oncol 2024; 18:832-849. [PMID: 38217258 PMCID: PMC10994242 DOI: 10.1002/1878-0261.13587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 11/02/2023] [Accepted: 01/04/2024] [Indexed: 01/15/2024] Open
Abstract
Intraocular drug delivery is a promising approach for treatment of ocular diseases. Chemotherapeutic drugs used in retinoblastoma (RB) treatment often lead to side effects and drug resistances. Therefore, new adjuvant therapies are needed to treat chemoresistant RBs. Biocompatible gold nanoparticles (GNPs) have unique antiangiogenic properties and can inhibit cancer progression. The combination of gold and low-molecular-weight hyaluronan (HA) enhances the stability of GNPs and promotes the distribution across ocular barriers. Attached to HA-GNPs, the atrial natriuretic peptide (ANP), which diminishes neovascularization in the eye, is a promising new therapeutic agent for RB treatment. In the study presented, we established ANP-coupled HA-GNPs and investigated their effect on the tumor formation potential of chemoresistant RB cells in an in ovo chicken chorioallantoic membrane model and an orthotopic in vivo RB rat eye model. Treatment of etoposide-resistant RB cells with ANP-HA-GNPs in ovo resulted in significantly reduced tumor growth and angiogenesis compared with controls. The antitumorigenic effect could be verified in the rat eye model, including a noninvasive application form via eye drops. Our data suggest that ANP-HA-GNPs represent a new minimally invasive, adjuvant treatment option for RB.
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Affiliation(s)
- André Haase
- Department of Neuroanatomy, Center for Translational Neuro‐ and Behavioral Sciences (C‐TNBS), Institute for Anatomy IIUniversity of Duisburg‐Essen, Medical FacultyGermany
| | - Natalia Miroschnikov
- Department of Neuroanatomy, Center for Translational Neuro‐ and Behavioral Sciences (C‐TNBS), Institute for Anatomy IIUniversity of Duisburg‐Essen, Medical FacultyGermany
| | - Stefan Klein
- Department of Neuroanatomy, Center for Translational Neuro‐ and Behavioral Sciences (C‐TNBS), Institute for Anatomy IIUniversity of Duisburg‐Essen, Medical FacultyGermany
| | - Annika Doege
- Department of Neuroanatomy, Center for Translational Neuro‐ and Behavioral Sciences (C‐TNBS), Institute for Anatomy IIUniversity of Duisburg‐Essen, Medical FacultyGermany
| | - Nicole Dünker
- Department of Neuroanatomy, Center for Translational Neuro‐ and Behavioral Sciences (C‐TNBS), Institute for Anatomy IIUniversity of Duisburg‐Essen, Medical FacultyGermany
| | - Dario Van Meenen
- Department of Neuroanatomy, Center for Translational Neuro‐ and Behavioral Sciences (C‐TNBS), Institute for Anatomy IIUniversity of Duisburg‐Essen, Medical FacultyGermany
| | - Andreas Junker
- Institute of NeuropathologyUniversity of Duisburg‐Essen, Medical FacultyGermany
| | - Achim Göpferich
- Department of Pharmaceutical TechnologyUniversity of RegensburgGermany
| | - Paola Stephanie Apaolaza
- Type 1 Diabetes Pathology Research Unit, Institute of Diabetes ResearchHelmholtz Centre MunichGermany
| | - Maike Anna Busch
- Department of Neuroanatomy, Center for Translational Neuro‐ and Behavioral Sciences (C‐TNBS), Institute for Anatomy IIUniversity of Duisburg‐Essen, Medical FacultyGermany
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Sun D, Sun W, Gao SQ, Lehrer J, Wang H, Hall R, Lu ZR. Intravitreal Delivery of PEGylated-ECO Plasmid DNA Nanoparticles for Gene Therapy of Stargardt Disease. Pharm Res 2024; 41:807-817. [PMID: 38443629 DOI: 10.1007/s11095-024-03679-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 02/18/2024] [Indexed: 03/07/2024]
Abstract
OBJECTIVE Current gene therapy of inherited retinal diseases is achieved mainly by subretinal injection, which is invasive with severe adverse effects. Intravitreal injection is a minimally invasive alternative for gene therapy of inherited retinal diseases. This work explores the efficacy of intravitreal delivery of PEGylated ECO (a multifunctional pH-sensitive amphiphilic amino lipid) plasmid DNA (pGRK1-ABCA4-S/MAR) nanoparticles (PEG-ELNP) for gene therapy of Stargardt disease. METHODS Pigmented Abca4-/- knockout mice received 1 µL of PEG-ELNP solution (200 ng/uL, pDNA concentration) by intravitreal injections at an interval of 1.5 months. The expression of ABCA4 in the retina was determined by RT-PCR and immunohistochemistry at 6 months after the second injection. A2E levels in the treated eyes and untreated controls were determined by HPLC. The safety of treatment was monitored by scanning laser ophthalmoscopy and electroretinogram (ERG). RESULTS PEG-ELNP resulted in significant ABCA4 expression at both mRNA level and protein level at]6 months after 2 intravitreal injections, and a 40% A2E accumulation reduction compared with non-treated controls. The PEG-ELNP also demonstrated excellent safety as shown by scanning laser ophthalmoscopy, and the eye function evaluation from electroretinogram. CONCLUSIONS Intravitreal delivery of the PEG-ELNP of pGRK1-ABCA4-S/MAR is a promising approach for gene therapy of Stargardt Disease, which can also be a delivery platform for gene therapy of other inherited retinal diseases.
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Affiliation(s)
- Da Sun
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, 44106, United States
| | - Wenyu Sun
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, 44106, United States
| | - Song-Qi Gao
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, 44106, United States
| | - Jonathan Lehrer
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, 44106, United States
| | - Hong Wang
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, 44106, United States
| | - Ryan Hall
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, 44106, United States
| | - Zheng-Rong Lu
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, 44106, United States.
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Zare M, Farhadi A, Zare F, Dehbidi GR, Zarghampoor F, Ahmadi MKB, Behbahani AB. Genetically engineered E. coli invade epithelial cells and transfer their genetic cargo into the cells: an approach to a gene delivery system. Biotechnol Lett 2023:10.1007/s10529-023-03387-7. [PMID: 37166604 DOI: 10.1007/s10529-023-03387-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 04/21/2023] [Accepted: 04/27/2023] [Indexed: 05/12/2023]
Abstract
PURPOSE Despite advances in gene therapy, the lack of safe and efficient gene delivery systems limited the clinical effectiveness of gene therapy. Due to the inherent potential of bacteria, they can be considered as a good option for the gene transfer system. This study aimed to create a genetically engineered bacterium capable of entering epithelial cells and transferring its genetic cargo to the cell's cytoplasm, eventually expressing the gene of interest in the cell. METHODS The invasin (inv) gene from Yersinia pseudotuberculosis and the listeriolysin (hlyA) gene from Listeria monocytogenes were isolated by PCR assay and inserted into a pACYCDuet-1 vector. The recombinant plasmid was then transformed into E. coli strain BL21. Subsequently, pEGFP-C1 plasmids containing a CMV promoter were transformed into the engineered bacteria. Finally, the engineered bacteria containing the reporter genes were incubated with the HeLa and LNCaP cell lines. Fluorescence microscopy, flow cytometry, and TEM were used to monitor bacterial entry into the cells and gene expression. We used native E. coli strain BL21 as a control. RESULTS A fluorescence microscope showed that, in contrast to the control group, the manipulated E. coli were able to penetrate the cells and transport the plasmid pEGFP-C1 to the target cells. Flow cytometry also showed fluorescence intensity of 54.7% in HeLa cells and 71% in LNCaP cells, respectively. In addition, electron micrographs revealed the presence of bacteria in the cell endosomes and in the cytoplasm of the cells. CONCLUSION This study shows that genetically engineered E. coli can enter cells, transport cargo into cells, and induce gene expression in the target cell. In addition, flow cytometry shows that the gene transfer efficiency was sufficient for protein expression.
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Affiliation(s)
- Maryam Zare
- Diagnostic Laboratory Sciences and Technology Research Center, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
- Division of Medical Biotechnology, Department of Medical Laboratory Sciences, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Farhadi
- Diagnostic Laboratory Sciences and Technology Research Center, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
- Division of Medical Biotechnology, Department of Medical Laboratory Sciences, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Farahnaz Zare
- Diagnostic Laboratory Sciences and Technology Research Center, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Gholamreza Rafiei Dehbidi
- Diagnostic Laboratory Sciences and Technology Research Center, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Farzaneh Zarghampoor
- Diagnostic Laboratory Sciences and Technology Research Center, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Karimi Baba Ahmadi
- Department of Advanced Medical Technology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Abbas Behzad Behbahani
- Diagnostic Laboratory Sciences and Technology Research Center, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran.
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Mandal M, Banerjee I, Mandal M. Nanoparticle-mediated gene therapy as a novel strategy for the treatment of retinoblastoma. Colloids Surf B Biointerfaces 2022; 220:112899. [DOI: 10.1016/j.colsurfb.2022.112899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/26/2022] [Accepted: 10/01/2022] [Indexed: 11/05/2022]
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Rotov AY, Romanov IS, Tarakanchikova YV, Astakhova LA. Application Prospects for Synthetic Nanoparticles in Optogenetic Retinal Prosthetics. J EVOL BIOCHEM PHYS+ 2021. [DOI: 10.1134/s0022093021060132] [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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7
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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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Neuroprotective Effect of siRNA Entrapped in Hyaluronic Acid-Coated Lipoplexes by Intravitreal Administration. Pharmaceutics 2021; 13:pharmaceutics13060845. [PMID: 34200993 PMCID: PMC8226864 DOI: 10.3390/pharmaceutics13060845] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/28/2021] [Accepted: 05/30/2021] [Indexed: 12/19/2022] Open
Abstract
Since the possibility of silencing specific genes linked to retinal degeneration has become a reality with the use of small interfering RNAs (siRNAs), this technology has been widely studied to promote the treatment of several ocular diseases. Despite recent advances, the clinical success of gene silencing in the retina is significantly reduced by inherent anatomical and physiological ocular barriers, and new strategies are required to achieve intraocular therapeutic effectiveness. In this study, we developed lipoplexes, prepared with sodium alginate as an adjuvant and strategically coated with hyaluronic acid (HA-LIP), and investigated the potential neuroprotective effect of these systems in a retinal light damage model. Successful functionalization of the lipoplexes with hyaluronic acid was indicated in the dynamic light scattering and transmission electron microscopy results. Moreover, these HA-LIP nanoparticles were able to protect and deliver siRNA molecules targeting caspase-3 into the retina. After retinal degeneration induced by high light exposure, in vitro and in vivo quantitative reverse transcription-PCR (RT-qPCR) assays demonstrated significant inhibition of caspase-3 expression by HA-LIP. Furthermore, these systems were shown to be safe, as no evidence of retinal toxicity was observed by electroretinography, clinical evaluation or histology.
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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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Sultana A, Tiash S. Improved DNA delivery using invasive E. coli DH10B in human cells by modified bactofection method. J Control Release 2021; 332:233-244. [PMID: 33561481 DOI: 10.1016/j.jconrel.2021.02.004] [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: 10/15/2020] [Revised: 01/16/2021] [Accepted: 02/02/2021] [Indexed: 11/15/2022]
Abstract
E. coli mediated gene delivery faces a major drawback of low efficiency despite of being a safer alternative to viral vectors. This study showed a novel, simple and effective strategy to enhance invasive E. coli DH10B vector's efficiency in human epithelial cells. The bactofection efficiency of invasive E .coli vector was analyzed in nine cell lines. It demonstrated highest (16%) reporter gene (GFP) expression in cervical cells. Methods were employed to further enhance its efficiency by adding transfection reagents (trans-bactofection method) to promote entry into host cells, lysosomotropic reagents for escape from lysosomal degradation or antibiotics to lyse internalized bacteria. Increased bacterial entry, as elucidated from nil to 3% expression in liver cells, was obtained upon complexing bacteria with PULSin. Chloroquine mediated endosomal escape resulted in 7.2 folds increase whereas tetracycline addition to lyse internalized bacteria caused ≈90% of GFP in HeLa. Eventually, the combined effect of these three methods exhibited close to 100% GFP in cervical and remarkable increase of 138 folds in breast cells. This is the first study showing comparative study of vector's gene delivery ability in various epithelial cells of the human body with improving its delivery efficiency. These data demonstrated the potential of developed bactofection method to boost up the efficiency of other bacterial vectors also, which could further be used for effectual therapeutic gene delivery in human cells.
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Affiliation(s)
- Alviya Sultana
- School of Science, Monash University, Bandar Sunway, Malaysia.
| | - Snigdha Tiash
- Griffith Institute for Drug Discovery, Griffith University, Queensland, Australia.
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Scheive M, Yazdani S, Hajrasouliha AR. The utility and risks of therapeutic nanotechnology in the retina. Ther Adv Ophthalmol 2021; 13:25158414211003381. [PMID: 33817552 PMCID: PMC7989128 DOI: 10.1177/25158414211003381] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 02/23/2021] [Indexed: 01/06/2023] Open
Abstract
The clinical application of nanotechnology in medicine is promising for therapeutic, diagnostic, and surgical improvements in the near future. Nanotechnologies in nano-ophthalmology are in the early stages of application in clinical contexts, including ocular drug and gene delivery systems addressing eye disorders, particularly retinopathies. Retinal diseases are challenging to treat as current interventions, such as intravitreal injections, are limited by their invasive nature. This review examines nanotechnological approaches to retinal diseases in a clinical context. Nanotechnology has the potential to transform pharmacological and surgical interventions by overcoming limitations posed by the protective anatomical and physiological barriers that limit access to the retina. Preclinical research in the application of nanoparticles in diagnostics indicates that nanoparticles can enhance existing diagnostic and screening tools to detect diseases earlier and more easily and improve disease progression monitoring precision.
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Affiliation(s)
- Melanie Scheive
- Indiana University School of Medicine, Indianapolis, IN, USA
| | - Saeed Yazdani
- Indiana University-Purdue University Indianapolis, Indianapolis, IN, USA
| | - Amir R Hajrasouliha
- Assistant Professor of Ophthalmology, Eugene and Marilyn Glick Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, 1160 W Michigan St., Indianapolis, IN 46202, USA
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Arshad R, Barani M, Rahdar A, Sargazi S, Cucchiarini M, Pandey S, Kang M. Multi-Functionalized Nanomaterials and Nanoparticles for Diagnosis and Treatment of Retinoblastoma. BIOSENSORS 2021; 11:97. [PMID: 33810621 PMCID: PMC8066896 DOI: 10.3390/bios11040097] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/19/2021] [Accepted: 03/23/2021] [Indexed: 12/17/2022]
Abstract
Retinoblastoma is a rare type of cancer, and its treatment, as well as diagnosis, is challenging, owing to mutations in the tumor-suppressor genes and lack of targeted, efficient, cost-effective therapy, exhibiting a significant need for novel approaches to address these concerns. For this purpose, nanotechnology has revolutionized the field of medicine with versatile potential capabilities for both the diagnosis, as well as the treatment, of retinoblastoma via the targeted and controlled delivery of anticancer drugs via binding to the overexpressed retinoblastoma gene. Nanotechnology has also generated massive advancements in the treatment of retinoblastoma based on the use of surface-tailored multi-functionalized nanocarriers; overexpressed receptor-based nanocarriers ligands (folate, galactose, and hyaluronic acid); lipid-based nanocarriers; and metallic nanocarriers. These nanocarriers seem to benchmark in mitigating a plethora of malignant retinoblastoma via targeted delivery at a specified site, resulting in programmed apoptosis in cancer cells. The effectiveness of these nanoplatforms in diagnosing and treating intraocular cancers such as retinoblastoma has not been properly discussed, despite the increasing significance of nanomedicine in cancer management. This article reviewed the recent milestones and future development areas in the field of intraocular drug delivery and diagnostic platforms focused on nanotechnology.
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Affiliation(s)
- Rabia Arshad
- Department of Pharmacy, Quaid-I-Azam University, Islamabad 45320, Pakistan;
| | - Mahmood Barani
- Department of Chemistry, ShahidBahonar University of Kerman, Kerman 76169-14111, Iran;
| | - Abbas Rahdar
- Department of Physics, Faculty of Science, University of Zabol, Zabol 98613-35856, Iran
| | - Saman Sargazi
- Cellular and Molecular Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan 98167-43463, Iran;
| | - Magali Cucchiarini
- Center of Experimental Orthopaedics, Saarland University Medical Center, 66421 Homburg/Saar, Germany;
| | - Sadanand Pandey
- Department of Chemistry, College of Natural Science, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Korea
- Particulate Matter Research Center, Research Institute of Industrial Science & Technology (RIST), 187-12, Geumho-ro, Gwangyang-si 57801, Korea
| | - Misook Kang
- Department of Chemistry, College of Natural Science, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Korea
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Pishavar E, Luo H, Bolander J, Atala A, Ramakrishna S. Nanocarriers, Progenitor Cells, Combinational Approaches, and New Insights on the Retinal Therapy. Int J Mol Sci 2021; 22:1776. [PMID: 33579019 PMCID: PMC7916765 DOI: 10.3390/ijms22041776] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/04/2021] [Accepted: 02/08/2021] [Indexed: 12/19/2022] Open
Abstract
Progenitor cells derived from the retinal pigment epithelium (RPECs) have shown promise as therapeutic approaches to degenerative retinal disorders including diabetic retinopathy, age-related macular degeneration and Stargardt disease. However, the degeneration of Bruch's membrane (BM), the natural substrate for the RPE, has been identified as one of the major limitations for utilizing RPECs. This degeneration leads to decreased support, survival and integration of the transplanted RPECs. It has been proposed that the generation of organized structures of nanofibers, in an attempt to mimic the natural retinal extracellular matrix (ECM) and its unique characteristics, could be utilized to overcome these limitations. Furthermore, nanoparticles could be incorporated to provide a platform for improved drug delivery and sustained release of molecules over several months to years. In addition, the incorporation of tissue-specific genes and stem cells into the nanostructures increased the stability and enhanced transfection efficiency of gene/drug to the posterior segment of the eye. This review discusses available drug delivery systems and combination therapies together with challenges associated with each approach. As the last step, we discuss the application of nanofibrous scaffolds for the implantation of RPE progenitor cells with the aim to enhance cell adhesion and support a functionally polarized RPE monolayer.
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Affiliation(s)
- Elham Pishavar
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad 91735, Iran;
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA;
| | - Hongrong Luo
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu 610064, China;
| | - Johanna Bolander
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA;
| | - Antony Atala
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA;
| | - Seeram Ramakrishna
- Center for Nanofibers and Nanotechnology, National University of Singapore, Singapore 117581, Singapore
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Liu X, Liu H, Wang SL, Liu JW. Hyaluronic acid derivative-modified nano-structured lipid carrier for cancer targeting and therapy. J Zhejiang Univ Sci B 2020; 21:571-580. [PMID: 32633111 DOI: 10.1631/jzus.b1900624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
To reduce the problems of poor solubility, high in vivo dosage requirement, and weak targeting ability of paclitaxel (PTX), a hyaluronic acid-octadecylamine (HA-ODA)-modified nano-structured lipid carrier (HA-NLC) was constructed. HA-ODA conjugates were synthesized by an amide reaction between HA and ODA. The hydrophobic chain of HA-ODA can be embedded in the lipid core of the NLC to obtain HA-NLC. The HA-NLC displayed strong internalization in cluster determinant 44 (CD44) highly expressed MCF-7 cells, and endocytosis mediated by the CD44 receptor was involved. The HA-NLC had an encapsulation efficiency of PTX of 72.0%. The cytotoxicity of the PTX-loaded nanoparticle HA-NLC/PTX in MCF-7 cells was much stronger than that of the commercial preparation Taxol®. In vivo, the HA-NLC exhibited strong tumor targeting ability. The distribution of the NLCs to the liver and spleen was reduced after HA modification, while more nanoparticles were aggregated to the tumor site. Our results suggest that HA-NLC has excellent properties as a nano drug carrier and potential for in vivo targeting.
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Affiliation(s)
- Xiao Liu
- Department of Pharmacy, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China
| | - Hai Liu
- Department of Radiotherapy, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China
| | - Su-Lan Wang
- Department of Pharmacy, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China
| | - Jing-Wen Liu
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston TX 77030, USA
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15
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Thakur SS, Shenoy SK, Suk JS, Hanes JS, Rupenthal ID. Validation of hyaluronic acid-agar-based hydrogels as vitreous humor mimetics for in vitro drug and particle migration evaluations. Eur J Pharm Biopharm 2020; 148:118-125. [PMID: 31981693 DOI: 10.1016/j.ejpb.2020.01.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 01/16/2020] [Accepted: 01/19/2020] [Indexed: 12/26/2022]
Abstract
Artificial vitreous humor holds immense potential for use in in vitro intravitreal drug delivery assays. In this study, we investigated rheological properties and drug or nanoparticle migration in hyaluronic acid (HA) - agar based hydrogels and compared these characteristics with bovine vitreous humor. Gel compositions identified in literature containing HA (0.7-5.0 mg/ml) and agar (0.95-4.0 mg/ml) were classified as either high (VH), medium (VM) or low (VL) polymer load. Viscoelastic behavior was evaluated using oscillatory rheology, and migration of differently sized and charged polystyrene nanoparticles (NPs) through the different gels was determined via multiple particle tracking. Comparable rheological behaviour was observed between VL and bovine vitreous. Tracking evaluations revealed that increasing particle size and gel viscosity slowed NP migration. Additionally, 100 nm anionic NPs migrated slower than neutral NPs in VL and VM, while cationic NPs were immobile in all gels. Finally, distribution and clearance of sodium fluorescein was used to model drug mobility through the gels using a custom-built eye model. Flow and angular movement only influenced drug migration in VL and VM, but not VH. Finally, VL and VM demonstrated to have the most similar sodium fluorescein clearance to that of bovine vitreous humor. Together, these evaluations demonstrate that low viscosity HA-agar gels can be used to approximate nanoparticle and drug migration through biological vitreous humor.
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Affiliation(s)
- Sachin S Thakur
- Buchanan Ocular Therapeutics Unit, Department of Ophthalmology, New Zealand National Eye Centre, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
| | - Siddharth K Shenoy
- Center for Nanomedicine, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA; Department of Ophthalmology, Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA
| | - Jung Soo Suk
- Center for Nanomedicine, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA; Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA; Department of Ophthalmology, Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA
| | - Justin S Hanes
- Center for Nanomedicine, Wilmer Eye Institute, The Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA; Department of Pharmacology & Molecular Sciences, Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA; Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA; Department of Ophthalmology, Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA
| | - Ilva D Rupenthal
- Buchanan Ocular Therapeutics Unit, Department of Ophthalmology, New Zealand National Eye Centre, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
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16
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Kuznetsova DA, Gabdrakhmanov DR, Ahtamyanova LR, Lukashenko SS, Kusova AM, Zuev YF, Voloshina AD, Sapunova AS, Kulik NV, Kuznetsov DM, Nizameev IR, Kadirov MK, Zakharova LY. Novel self-assembling systems based on imidazolium amphiphiles with cleavable urethane fragment for construction of soft nanocontainers for biomedicine application. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.111961] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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17
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Pal Singh P, Vithalapuram V, Metre S, Kodipyaka R. Lipoplex-based therapeutics for effective oligonucleotide delivery: a compendious review. J Liposome Res 2019; 30:313-335. [DOI: 10.1080/08982104.2019.1652645] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Pirthi Pal Singh
- Department of Formulation Research and Development, Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Ltd., Hyderabad, India
| | - Veena Vithalapuram
- Department of Formulation Research and Development, Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Ltd., Hyderabad, India
| | - Sunita Metre
- Department of Formulation Research and Development, Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Ltd., Hyderabad, India
| | - Ravinder Kodipyaka
- Department of Formulation Research and Development, Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Ltd., Hyderabad, India
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18
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Huang X, Chau Y. Intravitreal nanoparticles for retinal delivery. Drug Discov Today 2019; 24:1510-1523. [DOI: 10.1016/j.drudis.2019.05.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 03/17/2019] [Accepted: 05/07/2019] [Indexed: 12/11/2022]
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19
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Urquhart AJ, Eriksen AZ. Recent developments in liposomal drug delivery systems for the treatment of retinal diseases. Drug Discov Today 2019; 24:1660-1668. [DOI: 10.1016/j.drudis.2019.04.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 02/11/2019] [Accepted: 04/03/2019] [Indexed: 10/27/2022]
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20
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Almeida APB, Damaceno GBR, Carneiro AF, Bohr A, Gonçalves HR, Valadares MC, Nascimento TL, Lima EM. Mucopenetrating lipoplexes modified with PEG and hyaluronic acid for CD44-targeted local siRNA delivery to the lungs. J Biomater Appl 2019; 34:617-630. [PMID: 31357900 DOI: 10.1177/0885328219863291] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | | | | | - Adam Bohr
- 2 Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
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21
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Sauvage F, Fraire JC, Remaut K, Sebag J, Peynshaert K, Harrington M, Van de Velde FJ, Xiong R, Tassignon MJ, Brans T, Braeckmans K, De Smedt SC. Photoablation of Human Vitreous Opacities by Light-Induced Vapor Nanobubbles. ACS NANO 2019; 13:8401-8416. [PMID: 31287662 DOI: 10.1021/acsnano.9b04050] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Myopia, diabetes, and aging are the main causes of progressive vitreous collagen aggregation, resulting in vitreous opacities, which can significantly disturb vision. As vitreous opacities, which induce the visual phenomenon of "floaters", are accessible with nanomaterials and light, we propose a nanotechnology-based approach to locally ablate them with highly reduced light energy compared to the more traditional YAG laser therapy. Our strategy relies on the plasmon properties of gold nanoparticles that generate vapor nanobubbles upon pulsed-laser illumination whose mechanical force can ablate vitreous opacities. We designed gold nanoparticles coated with hyaluronic acid (HA), which have excellent diffusional mobility in human vitreous, an essential requirement to reach the vitreous opacities. In addition, we found that HA-coated gold nanoparticles can accumulate extensively on human vitreous opacities that were obtained by vitrectomy from patients with vision-degrading myodesopsia. When subsequently applying nanosecond laser pulses, the collagen aggregates were efficiently destroyed with ∼1000 times less light energy than typically used in YAG laser therapy. This low-energy "floater-specific destruction", which is due to the accumulation of the small gold nanoparticles on the opacities, is attractive, as it may be safer to the surrounding ocular tissues while at the same time being easier and faster to apply compared to YAG laser therapy, where the opacities need to be ablated piece by piece by a tightly focused laser beam. Gold nanoparticle-assisted photoablation may therefore provide a safer, faster, and more reliable destruction of vitreous opacities in the treatment of ophthalmologic diseases.
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Affiliation(s)
- Félix Sauvage
- Laboratory of General Biochemistry & Physical Pharmacy, Faculty of Pharmaceutical Sciences , Ghent University , Ottergemsesteenweg 460 , Ghent 9000 , Belgium
| | - Juan C Fraire
- Laboratory of General Biochemistry & Physical Pharmacy, Faculty of Pharmaceutical Sciences , Ghent University , Ottergemsesteenweg 460 , Ghent 9000 , Belgium
| | - Katrien Remaut
- Laboratory of General Biochemistry & Physical Pharmacy, Faculty of Pharmaceutical Sciences , Ghent University , Ottergemsesteenweg 460 , Ghent 9000 , Belgium
| | - J Sebag
- VMR Institute for Vitreous Macula Retina , Huntington Beach , California 92647 , United States
- Doheny Eye Institute/UCLA , Los Angeles , California 90033 , United States
| | - Karen Peynshaert
- Laboratory of General Biochemistry & Physical Pharmacy, Faculty of Pharmaceutical Sciences , Ghent University , Ottergemsesteenweg 460 , Ghent 9000 , Belgium
| | - Michael Harrington
- Huntington Medical Research Institutes , Pasadena , California 91105 , United States
| | - Frans J Van de Velde
- Schepens Eye Research Institute , Harvard Medical School , Boston , Massachusetts 02114 , United States
| | - Ranhua Xiong
- Laboratory of General Biochemistry & Physical Pharmacy, Faculty of Pharmaceutical Sciences , Ghent University , Ottergemsesteenweg 460 , Ghent 9000 , Belgium
| | - Marie-José Tassignon
- Department of Ophthalmology, Antwerp University Hospital , University of Antwerp , Antwerp 2020 , Belgium
| | - Toon Brans
- Laboratory of General Biochemistry & Physical Pharmacy, Faculty of Pharmaceutical Sciences , Ghent University , Ottergemsesteenweg 460 , Ghent 9000 , Belgium
| | - Kevin Braeckmans
- Laboratory of General Biochemistry & Physical Pharmacy, Faculty of Pharmaceutical Sciences , Ghent University , Ottergemsesteenweg 460 , Ghent 9000 , Belgium
| | - Stefaan C De Smedt
- Laboratory of General Biochemistry & Physical Pharmacy, Faculty of Pharmaceutical Sciences , Ghent University , Ottergemsesteenweg 460 , Ghent 9000 , Belgium
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22
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Costa D, Albuquerque T, Queiroz JA, Valente AJM. A co-delivery platform based on plasmid DNA peptide-surfactant complexes: formation, characterization and release behavior. Colloids Surf B Biointerfaces 2019; 178:430-438. [PMID: 30908999 DOI: 10.1016/j.colsurfb.2019.03.029] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 03/08/2019] [Accepted: 03/13/2019] [Indexed: 12/12/2022]
Abstract
The development of delivery systems based on cell penetrating peptides represents an incredible asset and may deeply contribute for the evolution of therapies efficacy. In this context, we explore the plasmid DNA (pDNA) condensation ability of TAT peptide to produce a suitable intracellular delivery platform. The nanoparticles were formed at various ratios of nitrogen to phosphate groups (N/P) and the variation of polyplexes properties with this parameter was studied. Beyond the large size exhibited by these carriers, their low pDNA immobilization profile instigates the need for an additional compacting agent. To maximize the performance of this peptide delivery system, a series of alkyl trimethyl ammonium bromide surfactants (CnTAB) were employed to further condense pDNA. In general, not only this strategy promotes the formation of lower sized vectors, but also greatly enhances particle characteristics such as surface charge and pDNA encapsulation. The magnitude of this effect is intimately dependent on surfactant chain length. Furthermore, the known cytotoxicity of cationic surfactants has been dramatically reduced by their incorporation into TAT/pDNA complexes. The release kinetics can be tailored and optimized to promote the controlled/sustained release of pDNA. Following this, the surfactant alkyl chain length and the N/P ratio are important controlling parameters. In addition, doxorubicin and paclitaxel can be efficiently loaded and encapsulated into peptide/pDNA/surfactant carriers. The presented platform reveals a great potential for therapeutic payloads loading and controlled release open advanced and new approaches in the design/formulation of innovative biomedical systems towards clinical translation.
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Affiliation(s)
- Diana Costa
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal.
| | - Tânia Albuquerque
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - João A Queiroz
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Artur J M Valente
- Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
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23
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Peynshaert K, Devoldere J, Minnaert AK, De Smedt SC, Remaut K. Morphology and Composition of the Inner Limiting Membrane: Species-Specific Variations and Relevance toward Drug Delivery Research. Curr Eye Res 2019; 44:465-475. [PMID: 30638413 DOI: 10.1080/02713683.2019.1565890] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The inner limiting membrane (ILM) represents the structural boundary between the vitreous and the retina, and is suggested to act as a barrier for a wide range of retinal therapies. While it is widely acknowledged that the morphology of the human ILM exhibits regional variations and undergoes age-related changes, insight into its structure in laboratory animals is very limited. Besides presenting a detailed overview of the morphology and composition of the human ILM, this review specifically reflects on the species-specific differences in ILM structure. With these differences in mind, we furthermore summarize the most relevant reports on the barrier role of the ILM with regard to viral vectors, nanoparticles, anti-VEGF medication and stem cells. Overall, this review aims to deliberate on the impact of species-specific ILM variations on drug delivery research as well as to pinpoint knowledge gaps which future basic research should resolve.
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Affiliation(s)
- Karen Peynshaert
- a Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences , Ghent University , Ghent , Belgium.,b Ghent Research Group on Nanomedicines , Ghent University , Ghent , Belgium
| | - Joke Devoldere
- a Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences , Ghent University , Ghent , Belgium.,b Ghent Research Group on Nanomedicines , Ghent University , Ghent , Belgium
| | - An-Katrien Minnaert
- a Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences , Ghent University , Ghent , Belgium.,b Ghent Research Group on Nanomedicines , Ghent University , Ghent , Belgium
| | - Stefaan C De Smedt
- a Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences , Ghent University , Ghent , Belgium.,b Ghent Research Group on Nanomedicines , Ghent University , Ghent , Belgium
| | - Katrien Remaut
- a Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences , Ghent University , Ghent , Belgium.,b Ghent Research Group on Nanomedicines , Ghent University , Ghent , Belgium
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24
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Dillinger AE, Guter M, Froemel F, Weber GR, Perkumas K, Stamer WD, Ohlmann A, Fuchshofer R, Breunig M. Intracameral Delivery of Layer-by-Layer Coated siRNA Nanoparticles for Glaucoma Therapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1803239. [PMID: 30353713 PMCID: PMC6599181 DOI: 10.1002/smll.201803239] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 10/02/2018] [Indexed: 05/12/2023]
Abstract
Glaucoma is the second leading cause of blindness worldwide, often associated with elevated intraocular pressure. Connective tissue growth factor (CTGF) is a mediator of pathological effects in the trabecular meshwork (TM) and Schlemm's canal (SC). A novel, causative therapeutic concept which involves the intracameral delivery of small interfering RNA against CTGF is proposed. Layer-by-layer coated nanoparticles of 200-260 nm with a final layer of hyaluronan (HA) are developed. The HA-coating should provide the nanoparticles sufficient mobility in the extracellular matrix and allow for binding to TM and SC cells via CD44. By screening primary TM and SC cells in vitro, in vivo, and ex vivo, the validity of the concept is confirmed. CD44 expression is elevated in glaucomatous versus healthy cells by about two- to sixfold. CD44 is significantly involved in the cellular uptake of HA-coated nanoparticles. Ex vivo organ culture of porcine, murine, and human eyes demonstrates up to threefold higher accumulation of HA compared to control nanoparticles and much better penetration into the target tissue. Gene silencing in primary human TM cells results in a significant reduction of CTGF expression. Thus, HA-coated nanoparticles combined with RNA interference may provide a potential strategy for glaucoma therapy.
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Affiliation(s)
- Andrea E Dillinger
- Department of Human Anatomy and Embryology, University Regensburg, Universitaetsstrasse 31, 93040, Regensburg, Germany
| | - Michaela Guter
- Department of Pharmaceutical Technology, University Regensburg, Universitaetsstrasse 31, 93040, Regensburg, Germany
| | - Franziska Froemel
- Department of Human Anatomy and Embryology, University Regensburg, Universitaetsstrasse 31, 93040, Regensburg, Germany
| | - Gregor R Weber
- Department of Human Anatomy and Embryology, University Regensburg, Universitaetsstrasse 31, 93040, Regensburg, Germany
| | - Kristin Perkumas
- Department of Ophthalmology, Duke University, 2351 Erwin Road, Durham, NC, 27710, USA
| | - W Daniel Stamer
- Department of Ophthalmology, Duke University, 2351 Erwin Road, Durham, NC, 27710, USA
| | - Andreas Ohlmann
- Department of Ophthalmology, Ludwig-Maximilians-University Munich, 80336, Munich, Germany
| | - Rudolf Fuchshofer
- Department of Human Anatomy and Embryology, University Regensburg, Universitaetsstrasse 31, 93040, Regensburg, Germany
| | - Miriam Breunig
- Department of Pharmaceutical Technology, University Regensburg, Universitaetsstrasse 31, 93040, Regensburg, Germany
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25
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Sun Z, Yi Z, Cui X, Chen X, Su W, Ren X, Li X. Tumor-targeted and nitric oxide-generated nanogels of keratin and hyaluronan for enhanced cancer therapy. NANOSCALE 2018; 10:12109-12122. [PMID: 29915821 DOI: 10.1039/c8nr03265c] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The development of safe and effective nano-drug delivery systems to deliver anticancer drugs to targeted cells and organs is crucial to enhance the therapeutic efficacy and overcome unwanted side effects of chemotherapy. Herein, we prepared CD44-targeted dual-stimuli responsive human hair keratin and hyaluronic acid nanogels (KHA-NGs) through a simple crosslinking method. KHA-NGs, which consisted of spheres 50 nm in diameter, were used as carriers to load the anticancer drug doxorubicin hydrochloride (DOX). The drug release, cellular uptake, cytotoxicity, and targeting ability of DOX-loaded KHA-NGs (DOX@KHA-NGs) were assessed in vitro and the anticancer effects were further evaluated in vivo. The DOX@KHA-NGs had a super-high drug loading capacity (54.1%, w/w) and were stable under physiological conditions (10 μM glutathione (GSH)), with the drug being rapidly released under a tumor cell microenvironment of trypsin and 10 mM GSH. Cellular uptake and in vitro cytotoxicity results indicated that DOX@KHA-NGs specifically targeted cancer cells and effectively inhibited their growth. Furthermore, KHA-NGs were capable of improving intracellular nitric oxide levels, which sensitizes the cells and enhances the anticancer efficacy of chemotherapeutic drugs. In vivo experiments showed that DOX@KHA-NGs had a better anti-tumor effect and lower side effects compared to free DOX. These results suggest that the bio-responsive KHA-NGs have potential applications for targeted cancer therapy.
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Affiliation(s)
- Zhe Sun
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, People's Republic of China.
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