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Gupta S, Vasanth D, Kumar A. Physicochemical analysis of chitosan oligosaccharide revealed its usefulness in effective delivery of drugs. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024:1-19. [PMID: 39169460 DOI: 10.1080/09205063.2024.2392365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Accepted: 08/09/2024] [Indexed: 08/23/2024]
Abstract
Chitosan oligosaccharides are biopolymers with a wide range of potential applications in various fields. This biopolymer is diverse and promising, and current research is investigating its capabilities for improved drug delivery. As chitosan oligosaccharide has the potential to be used as a drug delivery option, the purpose of this study was to examine its physicochemical characteristics and its potential for drug delivery. In this study, the pharmacokinetic properties of chitosan oligosaccharide were studied through Insilco investigation, which revealed that it is an extremely soluble and effective drug delivery candidate because it does not inhibit CYP isoenzymes and has a log Kp of -12.10 cm/s. It belongs to toxicity class 6 for acute oral toxicity, with an average similarity of 87.5% and a prediction accuracy of 70.97%. Additionally, XRD peak analysis revealed that the material was amorphous, as the peak appeared at 2θ = 24.62°, indicating the absence of well-defined crystalline areas. This characteristic makes the material more suitable for customization in many applications such as drug delivery and tissue engineering. FTIR, SEM, and TGA analysis were performed to gain a better understanding. These findings also emphasize the distinctive qualities and benefits of the oligosaccharides in this domain. Application of chitosan oligosaccharides in the development of efficient drug delivery systems. In the future, it would be more effective, targeted, and safe, with potent therapeutic efficacy for drug delivery.
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Affiliation(s)
- Shraddha Gupta
- Department of Biotechnology, National Institute of Technology, Raipur, India
| | | | - Awanish Kumar
- Department of Biotechnology, National Institute of Technology, Raipur, India
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2
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Fathi-Karkan S, Amiri Ramsheh N, Arkaban H, Narooie-Noori F, Sargazi S, Mirinejad S, Roostaee M, Sargazi S, Barani M, Malahat Shadman S, Althomali RH, Rahman MM. Nanosuspensions in ophthalmology: Overcoming challenges and enhancing drug delivery for eye diseases. Int J Pharm 2024; 658:124226. [PMID: 38744414 DOI: 10.1016/j.ijpharm.2024.124226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 04/30/2024] [Accepted: 05/11/2024] [Indexed: 05/16/2024]
Abstract
This review article provides a comprehensive overview of the advancements in using nanosuspensions for controlled drug delivery in ophthalmology. It highlights the significance of ophthalmic drug delivery due to the prevalence of eye diseases and delves into various aspects of this field. The article explores molecular mechanisms, drugs used, and physiological factors affecting drug absorption. It also addresses challenges in treating both anterior and posterior eye segments and investigates the role of mucus in obstructing micro- and nanosuspensions. Nanosuspensions are presented as a promising approach to enhance drug solubility and absorption, covering formulation, stability, properties, and functionalization. The review discusses the pros and cons of using nanosuspensions for ocular drug delivery and covers their structure, preparation, characterization, and applications. Several graphical representations illustrate their role in treating various eye conditions. Specific drug categories like anti-inflammatory drugs, antihistamines, glucocorticoids, and more are discussed in detail, with relevant studies. The article also addresses current challenges and future directions, emphasizing the need for improved nanosuspension stability and exploring potential technologies. Nanosuspensions have shown substantial potential in advancing ophthalmic drug delivery by enhancing solubility and absorption. This article is a valuable resource for researchers, clinicians, and pharmaceutical professionals in this field, offering insights into recent developments, challenges, and future prospects in nanosuspension use for ocular drug delivery.
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Affiliation(s)
- Sonia Fathi-Karkan
- Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd 94531-55166, Iran; Department of Advanced Sciences and Technologies in Medicine, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd 9414974877, Iran.
| | - Nasim Amiri Ramsheh
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, 16846, Tehran, Iran.
| | - Hasan Arkaban
- Department of Chemistry, University of Isfahan, Isfahan 8174673441, Iran.
| | - Foroozan Narooie-Noori
- Optometry Department, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran.
| | - Sara Sargazi
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran.
| | - Shekoufeh Mirinejad
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran.
| | - Maryam Roostaee
- Department of Chemistry, Faculty of Sciences, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran.
| | - Saman Sargazi
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran; Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran.
| | - Mahmood Barani
- Department of Chemistry, Faculty of Nano and Bio Science and Technology, Persian Gulf University, Bushehr 75168, Iran.
| | | | - Raed H Althomali
- Department of Chemistry, College of Art and Science, Prince Sattam bin Abdulaziz University, Wadi Al-Dawasir 11991, Al Kharj, Saudi Arabia.
| | - Mohammed M Rahman
- Center of Excellence for Advanced Materials Research (CEAMR) & Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
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3
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Bedir T, Baykara D, Yildirim R, Calikoglu Koyuncu AC, Sahin A, Kaya E, Tinaz GB, Insel MA, Topuzogulları M, Gunduz O, Ustundag CB, Narayan R. Three-Dimensional-Printed GelMA-KerMA Composite Patches as an Innovative Platform for Potential Tissue Engineering of Tympanic Membrane Perforations. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:563. [PMID: 38607098 PMCID: PMC11013928 DOI: 10.3390/nano14070563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 03/10/2024] [Accepted: 03/21/2024] [Indexed: 04/13/2024]
Abstract
Tympanic membrane (TM) perforations, primarily induced by middle ear infections, the introduction of foreign objects into the ear, and acoustic trauma, lead to hearing abnormalities and ear infections. We describe the design and fabrication of a novel composite patch containing photocrosslinkable gelatin methacryloyl (GelMA) and keratin methacryloyl (KerMA) hydrogels. GelMA-KerMA patches containing conical microneedles in their design were developed using the digital light processing (DLP) 3D printing approach. Following this, the patches were biofunctionalized by applying a coaxial coating with PVA nanoparticles loaded with gentamicin (GEN) and fibroblast growth factor (FGF-2) with the Electrohydrodynamic Atomization (EHDA) method. The developed nanoparticle-coated 3D-printed patches were evaluated in terms of their chemical, morphological, mechanical, swelling, and degradation behavior. In addition, the GEN and FGF-2 release profiles, antimicrobial properties, and biocompatibility of the patches were examined in vitro. The morphological assessment verified the successful fabrication and nanoparticle coating of the 3D-printed GelMA-KerMA patches. The outcomes of antibacterial tests demonstrated that GEN@PVA/GelMA-KerMA patches exhibited substantial antibacterial efficacy against Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli. Furthermore, cell culture studies revealed that GelMA-KerMA patches were biocompatible with human adipose-derived mesenchymal stem cells (hADMSC) and supported cell attachment and proliferation without any cytotoxicity. These findings indicated that biofunctional 3D-printed GelMA-KerMA patches have the potential to be a promising therapeutic approach for addressing TM perforations.
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Affiliation(s)
- Tuba Bedir
- Center for Nanotechnology and Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey; (T.B.); (D.B.); (A.C.C.K.); (O.G.)
- Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul 34722, Turkey
| | - Dilruba Baykara
- Center for Nanotechnology and Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey; (T.B.); (D.B.); (A.C.C.K.); (O.G.)
- Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul 34722, Turkey
| | - Ridvan Yildirim
- Center for Nanotechnology and Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey; (T.B.); (D.B.); (A.C.C.K.); (O.G.)
- Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul 34722, Turkey
| | - Ayse Ceren Calikoglu Koyuncu
- Center for Nanotechnology and Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey; (T.B.); (D.B.); (A.C.C.K.); (O.G.)
- Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul 34722, Turkey
| | - Ali Sahin
- Department of Biochemistry, Faculty of Medicine, Marmara University, Istanbul 34722, Turkey;
| | - Elif Kaya
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Marmara University, Istanbul 34668, Turkey; (E.K.); (G.B.T.)
| | - Gulgun Bosgelmez Tinaz
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Marmara University, Istanbul 34668, Turkey; (E.K.); (G.B.T.)
| | - Mert Akin Insel
- Department of Chemical Engineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul 34210, Turkey;
| | - Murat Topuzogulları
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul 34210, Turkey;
| | - Oguzhan Gunduz
- Center for Nanotechnology and Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey; (T.B.); (D.B.); (A.C.C.K.); (O.G.)
- Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul 34722, Turkey
- Health Biotechnology Joint Research and Application Center of Excellence, Istanbul 34220, Turkey
| | - Cem Bulent Ustundag
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul 34210, Turkey;
- Health Biotechnology Joint Research and Application Center of Excellence, Istanbul 34220, Turkey
| | - Roger Narayan
- Joint Department of Biomedical Engineering, University of North Carolina, Chapel Hill, NC 27599, USA
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Zhang F, Zhang J, Zhang W. Recent advances in nanotechnology for the treatment of fungal keratitis. Eur J Ophthalmol 2024; 34:18-29. [PMID: 37198915 DOI: 10.1177/11206721231174653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Fungal keratitis (FK) is a serious pathogenic disease usually associated with serious ocular complications. The current mainstay of treatment for FK is topical eye drops; however, poor corneal penetration, low bioavailability of the drug and the need to administer high and frequent doses due to the presence of an effective clearance mechanism in the eye result in poor patient compliance. Nanocarriers can extend the duration of drug action through sustained and controlled release of the drug, protect the drug from ocular enzymes and help overcome ocular barriers. In this review, we discussed the mechanisms of action of antifungal drugs, the theoretical basis for the treatment of FK, and recent advances in the clinical treatment of FK. We have summarized the results of research into the most promising nanocarriers for ocular drug delivery and highlight their efficacy and safety in the therapy.
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Affiliation(s)
- Fang Zhang
- College of Pharmacy, Weifang Medical University, Weifang, Shandong, PR China
- Shandong Engineering Researh Center for Smart Materials and Regenerative Medicine, Weifang Medical University, Weifang, Shandong, PR China
| | - Jingjing Zhang
- College of Basic Medical, Qingdao Binhai University, Qingdao, P.R. China
| | - Weifen Zhang
- College of Pharmacy, Weifang Medical University, Weifang, Shandong, PR China
- Shandong Engineering Researh Center for Smart Materials and Regenerative Medicine, Weifang Medical University, Weifang, Shandong, PR China
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5
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Tang L, Yin Y, Cao Y, Fu C, Liu H, Feng J, Wang W, Liang XJ. Extracellular Vesicles-Derived Hybrid Nanoplatforms for Amplified CD47 Blockade-Based Cancer Immunotherapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2303835. [PMID: 37384818 DOI: 10.1002/adma.202303835] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/26/2023] [Accepted: 06/26/2023] [Indexed: 07/01/2023]
Abstract
Immunomodulation of tumor-associated macrophages (TAMs) into tumor-inhibiting M1-like phenotype is a promising but challenging strategy. Cleverly, tumor cells overexpress CD47, a "don't eat me" signal that ligates with the signal regulatory protein alpha (SIRPα) on macrophages to escape phagocytosis. Thus, effective re-education of TAMs into the "eat me" type and blocking the CD47-SIRPα signaling play pivotal roles in tumor immunotherapy. Herein, it is reported that hybrid nanovesicles (hEL-RS17) derived from extracellular vesicles of M1 macrophages and decorated with RS17 peptide, an antitumor peptide that specifically binds to CD47 on tumor cells and blocks CD47-SIRPα signaling, can actively target tumor cells and remodel TAM phenotypes. Consequently, more M1-like TAMs infiltrate into tumor tissue to phagocytize more tumor cells due to CD47 blockade. By further co-encapsulating chemotherapeutic agent shikonin, photosensitizer IR820, and immunomodulator polymetformin in hEL-RS17, an enhanced antitumor effect is obtained due to the combinational treatment modality and close synergy among each component. Upon laser irradiation, the designed SPI@hEL-RS17 nanoparticles exert potent antitumor efficacy against both 4T1 breast tumor and B16F10 melanoma models, which not only suppresses primary tumor growth but also inhibits lung metastasis and prevents tumor recurrence, exhibiting great potential in boosting CD47 blockade-based antitumor immunotherapy.
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Affiliation(s)
- Lu Tang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
- NMPA Key Laboratory for Research and Evaluation of Cosmetics, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Yue Yin
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
- NMPA Key Laboratory for Research and Evaluation of Cosmetics, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Yuqi Cao
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
- NMPA Key Laboratory for Research and Evaluation of Cosmetics, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Cong Fu
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
- NMPA Key Laboratory for Research and Evaluation of Cosmetics, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Hening Liu
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
- NMPA Key Laboratory for Research and Evaluation of Cosmetics, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Jingwen Feng
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
- NMPA Key Laboratory for Research and Evaluation of Cosmetics, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Wei Wang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
- NMPA Key Laboratory for Research and Evaluation of Cosmetics, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Xing-Jie Liang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, No. 11, First North Road, Zhongguancun, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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6
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Fathi HA, Yousry C, Elsabahy M, El-Badry M, El Gazayerly ON. Effective loading of incompatible drugs into nanosized vesicles: a strategy to allow concurrent administration of furosemide and midazolam in simulated clinical settings. Int J Pharm 2023; 636:122852. [PMID: 36934884 DOI: 10.1016/j.ijpharm.2023.122852] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/25/2023] [Accepted: 03/12/2023] [Indexed: 03/19/2023]
Abstract
The current study aims to assess the use of nanocarriers to limit drug incompatibilities in clinical settings, and thus eliminating serious clinical consequences (e.g., catheter obstruction and embolism), and enhancing in vivo bioavailability and efficacy. As a proof-of-concept, the impact of loading well-documented physically incompatible drugs (i.e., furosemide and midazolam) into nanosized vesicles on in vitro stability and in vivo bioavailability of the two drugs was investigated. Furosemide and midazolam were loaded into nanosized spherical vesicles at high entrapment efficiency (ca. 62-69%). The drug-loaded vesicles demonstrated a sustained drug release patterns, high physical stability and negligible hemolytic activity. Physical incompatibility was assessed by exploiting microscopic technique coupled with image processing and analysis, dynamic light scattering and laser Doppler anemometry. Incorporation of drugs separately inside the nanosized vesicles dramatically decreased size and number of the precipitated particles. In vivo, the niosomal drug mixture demonstrated a significant improvement in pharmacokinetic profiles of furosemide and midazolam compared to the mixed free drug solutions, as evidenced by their longer circulation half-lives and higher area under the plasma-concentration time curves of both drugs. Nanocarriers could provide an auspicious strategy for circumventing drug incompatibilities, thus reducing adverse reactions, hospitalization period and improving therapeutic outcomes.
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Affiliation(s)
- Heba A Fathi
- Assiut International Center of Nanomedicine, Al-Rajhy Liver Hospital, Assiut University, Assiut 71515, Egypt
| | - Carol Yousry
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Mahmoud Elsabahy
- School of Biotechnology and BUC Research Center, Badr University in Cairo, Badr City, Cairo 11829, Egypt; Department of Chemistry, Texas A&M University, College Station, TX 77842, USA; Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71515, Egypt.
| | - Mahmoud El-Badry
- Assiut International Center of Nanomedicine, Al-Rajhy Liver Hospital, Assiut University, Assiut 71515, Egypt; Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71515, Egypt
| | - Omaima N El Gazayerly
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
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Syed MH, Zahari MAKM, Khan MMR, Beg MDH, Abdullah N. An overview on recent biomedical applications of biopolymers: Their role in drug delivery systems and comparison of major systems. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104121] [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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8
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Sanap SN, Bisen AC, Mishra A, Biswas A, Agrawal S, Yadav KS, Krishna A, Chopra S, Mugale MN, Bhatta RS. QbD based antifungal drug-loaded ophthalmic liposomal formulation for the management of fungal keratitis: In vitro, ex vivo and in vivo pharmacokinetic studies. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Impact of Deacetylation Degree on Properties of Chitosan for Formation of Electrosprayed Nanoparticles. JOURNAL OF NANOTECHNOLOGY 2022. [DOI: 10.1155/2022/2288892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Biopolymer of natural origin as chitosan has been studied and applied widely in practice. In the pharmaceutical field, especially, chitosan nanoparticles have been researched for a variety of drug delivery systems. There are many factors influencing the success of the chitosan nanoparticle delivery system. Therein, the specific parameters to the physicochemical nature of chitosan greatly determine the efficiency of its drugs carrier. The degree of deacetylation (DD) of chitosan is one of those parameters. In this study, the influence of DD on chitosan properties was clarified to facilitate the preparation of nanoparticles by the electrospraying method. DD can affect the solubility, crystallinity, and surface tension of chitosan, but it cannot strongly impact the viscosity of chitosan solution as much as the molecular weight (Mv). From these results, M3 chitosan, owning a high DD of 86.70%, and crystalline index of 44%, was dissolved in acetic acid for the collection of electrosprayed nanoparticles. The M3 solution having low viscosity of under 50 mm2/s displayed the easy adjustment of the stable Taylor-cone droplet at the nozzle tip. Particularly, the M3 chitosan solution with a concentration of 1.5 wt.% in acetic acid of 90 wt.% concentration operated at the working condition of 12 kV voltage, a distance between the two electrodes of 10 cm created spherical particles with an average diameter of 338 nm, narrow size distribution. These chitosan nanoparticles can obtain the initial requirement for application as injectable drugs carrier.
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10
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Gu L, Li C, Lin J, Wang Q, Yin M, Zhang L, Li N, Lin H, You Z, Wang S, Li D, Zhao G. Drug-loaded mesoporous carbon with sustained drug release capacity and enhanced antifungal activity to treat fungal keratitis. BIOMATERIALS ADVANCES 2022; 136:212771. [PMID: 35929310 DOI: 10.1016/j.bioadv.2022.212771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 03/11/2022] [Accepted: 03/18/2022] [Indexed: 06/15/2023]
Abstract
Fungal keratitis is a severe infectious corneal disease with a high rate of incidence and blindness. Since traditional treatments natamycin (NATA) eye drops, exhibit poor dissolution and bioavailability, and the efficacy of current therapeutic approaches remains limited. In this study, we innovatively utilized mesoporous carbon (Meso-C) and microporous carbon (Micro-C) as nanocarriers loaded with the antifungal drug NATA and silver nanoparticles (Ag-NPs). Porous carbon loaded with NATA and Ag-NPs has not previously been studied in fungal keratitis. Due to the mesoporous structure, high surface area and larger pore volume of Meso-C, it displayed greater superiority in sustained drug release and drug dispersity than Micro-C. Moreover, Meso-C could adsorb inflammatory cytokines during fungal infection. In vitro, Meso-C/NATA/Ag showed excellent antifungal effects. In vivo, compared with pure NATA treatment, Meso-C/NATA/Ag exhibited significantly improved therapeutic effects and reduced dosing frequency when treating fungal keratitis. Our study is the first to report the sustained drug release and improved drug dispersity of Meso-C/NATA and demonstrates that NATA and Ag-NPs-loaded Meso-C has therapeutic effects against fungal keratitis.
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Affiliation(s)
- Lingwen Gu
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Cui Li
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China.
| | - Jing Lin
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Qian Wang
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Min Yin
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Lina Zhang
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Na Li
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Hao Lin
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Zhihu You
- State Key Laboratory of Bio-fibers and Eco-textiles, Institute of Marine Biobased Materials, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, PR China
| | - Siyu Wang
- State Key Laboratory of Bio-fibers and Eco-textiles, Institute of Marine Biobased Materials, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, PR China
| | - Daohao Li
- State Key Laboratory of Bio-fibers and Eco-textiles, Institute of Marine Biobased Materials, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, PR China.
| | - Guiqiu Zhao
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China.
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11
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Chitosan-based drug delivery systems: current strategic design and potential application in human hard tissue repair. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2021.110979] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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12
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Rahvar M, Ahmadi Lakalayeh G, Nazeri N, Marouf BT, Shirzad M, Najafi T Shabankareh A, Ghanbari H. Assessment of structural, biological and drug release properties of electro-sprayed poly lactic acid-dexamethasone coating for biomedical applications. Biomed Eng Lett 2021; 11:393-406. [PMID: 34616584 DOI: 10.1007/s13534-021-00205-9] [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] [Received: 02/09/2021] [Revised: 07/28/2021] [Accepted: 08/20/2021] [Indexed: 10/20/2022] Open
Abstract
The efficacy of an implant is highly depends on its coating characteristics mainly determined by polymer properties and coating technique. Electro-spraying is an inexpensive and versatile coating technique with various advantages for biomedical application. In this study, the efficacy of electro-sprayed (ES) poly lactic acid (PLA)-dexamethasone (DEX) coatings for medical implants was evaluated and compared with spin-coated samples as control. Structural properties of coatings were investigated using X-ray diffraction (XRD) and differential scanning calorimetry (DSC). Confocal and scanning electron microscopy (SEM), contact angle measurement and nanoindentation tests were used to study surface properties. Coating degradation rate and drug release profile were studied for 40 days. Cell viability experiments were also performed on human endothelial (HUVEC) and smooth muscle cells (HUASMC) using MTT assay and SEM. XRD and DSC analysis showed electro-spraying significantly reduce PLA and DEX crystallinity. Surface studies showed ES coatings has significantly higher hydrophobicity and roughness with microbead-nanofiber morphology vs. micro-nanoporous structure of spin-coated samples. Initial burst release of DEX was 22% and 10% after 6 h and total release was 71% and 46% after 40 days for ES and spin-coated samples, respectively. HUVEC viability of ES samples was higher than spin-coated ones after 1 and 4 days. However, dexamethasone release profile reduced HUASMC proliferation in ES PLA-DEX samples in comparison to spin-coated after 1 and 3 days. In conclusion, in vitro results showed potential of ES PLA-DEX as a biocompatible and efficient anti-inflammatory coating with suitable drug release profile for future applications such as coronary drug eluting stents.
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Affiliation(s)
- Mostafa Rahvar
- Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran.,Department of Medical Nanotechnology, School of Advanced Technologies in Medicine (SATM), Tehran University of Medical Sciences (TUMS), Italia Street, Tehran, Iran
| | - Gholamreza Ahmadi Lakalayeh
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine (SATM), Tehran University of Medical Sciences (TUMS), Italia Street, Tehran, Iran
| | - Niloofar Nazeri
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine (SATM), Tehran University of Medical Sciences (TUMS), Italia Street, Tehran, Iran.,Research Institute for Prevention of Non-Communicable Diseases, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Bahereh T Marouf
- Department of Materials Science and Engineering, Faculty of Engineering, Urmia University, Urmia, Iran
| | - Mahdieh Shirzad
- Department of Microbiology, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, Tehran, Iran
| | - Azar Najafi T Shabankareh
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine (SATM), Tehran University of Medical Sciences (TUMS), Italia Street, Tehran, Iran
| | - Hossein Ghanbari
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine (SATM), Tehran University of Medical Sciences (TUMS), Italia Street, Tehran, Iran.,Research Center for Advanced Technologies in Cardiovascular Medicine, Tehran Heart Center, Tehran University of Medical Sciences (TUMS), Tehran, Iran
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