1
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Dou Y, Zhou X, Liu X, Hou J. Exoproteome analysis of Pseudomonas aeruginosa response to high alkane stress. Arch Microbiol 2024; 206:51. [PMID: 38175208 DOI: 10.1007/s00203-023-03749-9] [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: 09/14/2023] [Revised: 11/15/2023] [Accepted: 11/15/2023] [Indexed: 01/05/2024]
Abstract
Microbial biodegradation serves as an effective approach to treat oil pollution. However, the application of such methods for the degrading long-chain alkanes still encounters significant challenges. Comparative proteomics has extensively studied the intracellular proteins of bacteria that degrade short- and medium-chain alkanes, but the role and mechanism of extracellular proteins in many microorganism remain unclear. To enhance our understanding of the roles of extracellular proteins in the adaptation to long-chain alkanes, a label-free LC-MS/MS strategy was applied for the relative quantification of extracellular proteins of Pseudomonas aeruginosa SJTD-1-M (ProteomeXchange identifier PXD014638). 444 alkane-sentitive proteins were acquired and their cell localization analysis was performed using the Pseudomonas Genome Database. Among them, 111 proteins were found to be located in extracellular or Outer Membrane Vesicles (OMVs). The alkane-induced abundance of 11 extracellular or OMV target proteins was confirmed by parallel reaction monitoring (PRM). Furthermore, we observed that the expression levels of three proteins (Pra, PA2815, and FliC) were associated with the carbon chain length of the added alkane in the culture medium. The roles of these proteins in cell mobility, alkane emulsification, assimilation, and degradation were further discussed. OMVs were found to contain a number of enzymes involved in alkane metabolism, fatty acid beta-oxidation, and the TCA cycle, suggesting their potential as sites for facilitated alkane degradation. In this sense, this exoproteome analysis contributes to a better understanding of the role of extracellular proteins in the hydrocarbon treatment process.
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Affiliation(s)
- Yue Dou
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dong-Chuan Road, Shanghai, 200240, China
| | - Xuefeng Zhou
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dong-Chuan Road, Shanghai, 200240, China
- State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, 800 Dong-Chuan Road, Shanghai, 200240, China
| | - Xipeng Liu
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dong-Chuan Road, Shanghai, 200240, China
- State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, 800 Dong-Chuan Road, Shanghai, 200240, China
| | - Jingli Hou
- Instrumental Analysis Center of Shanghai Jiao Tong University, 800 Dong-Chuan Road, Shanghai, 200240, China.
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2
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Misturini Rodrigues L, Gonzales Domiciano M, Araujo de Almeida E, Sereia MJ, Peron AP, da Silva R. Production of bioactive and functional frozen yogurt through easy-to-make microspheres incorporation. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2024; 61:192-200. [PMID: 38192717 PMCID: PMC10771400 DOI: 10.1007/s13197-023-05835-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 07/31/2023] [Accepted: 08/31/2023] [Indexed: 01/10/2024]
Abstract
In the food industry, the microencapsulation process is important to control the release of active encapsulated ingredients, mask unwanted flavors, colors, and unpleasant smells, increase shelf life, and protect encapsulated components from light, moisture, and nutritional loss. In this process, microspheres are formed using cross-linked polymer, which can incorporate aqueous or oily ingredients, using simple physicochemical methods of phase separation by coacervation, without the need for organic solvents. In this context, this study aimed to develop bioactive, functional frozen yogurt through the incorporation of microspheres loaded with ascorbic acid or omega 3. The process used resulted in small microspheres (15-80 μm), imperceptible to the palate, and capable of swelling about 14 times, being suitable for incorporating omega 3, without altering the swelling, and extending the shelf life of the ascorbic acid for 6 weeks, even in an acid medium. Also, the matrix does not affect the properties of frozen yogurt and acts as a stabilizer, contributing to reduce the melting rate. The sensory analysis proved that encapsulation was promising to mask the taste and odor of omega 3 and to protect the ascorbic acid, without altering the properties and quality of the frozen product.
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Affiliation(s)
- Letícia Misturini Rodrigues
- Department of Food Engineering (DAAEQ), Federal Technological University of Paraná (UTFPR), Campo Mourão Campus, Campos Mourão, Paraná Brazil
| | - Mateus Gonzales Domiciano
- Department of Food Engineering (DAAEQ), Federal Technological University of Paraná (UTFPR), Campo Mourão Campus, Campos Mourão, Paraná Brazil
| | - Edson Araujo de Almeida
- Chemistry Course, Federal Technological University of Paraná (UTFPR), Campo Mourão Campus, Campo Mourão, Paraná Brazil
- Post-graduation Program of Chemistry, State University of Maringá (UEM), Maringá, Paraná Brazil
| | - Maria Josiane Sereia
- Department of Food Engineering (DAAEQ), Federal Technological University of Paraná (UTFPR), Campo Mourão Campus, Campos Mourão, Paraná Brazil
| | - Ana Paula Peron
- Department of Biodiversity and Nature Conservation (DABIC), Federal Technological University of Paraná (UTFPR), Campo Mourão Campus, Campos Mourão, Paraná Brazil
| | - Regiane da Silva
- Department of Chemistry (DAQUI), Federal Technological University of Paraná (UTFPR), Campo Mourão Campus, Campo Mourão, Paraná Brazil
- Post-Graduation Program of Food Technology (PPGTA), Federal Technological University of Paraná (UTFPR), Campo Mourão Campus, Campo Mourão, Paraná 87301-899 Brazil
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3
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Jurić Simčić A, Erak I, Cetina Čižmek B, Hafner A, Filipović-Grčić J. Selection of Excipients for the Preparation of Vancomycin-Loaded Poly(D,L-lactide-co-glycolide) Microparticles with Extended Release by Emulsion Spray Drying. Pharmaceutics 2023; 15:2438. [PMID: 37896198 PMCID: PMC10610132 DOI: 10.3390/pharmaceutics15102438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 10/03/2023] [Accepted: 10/04/2023] [Indexed: 10/29/2023] Open
Abstract
The aim of this study was to relate the composition of the W/O emulsion used as a starting fluid in the spray-drying process to the quality of the dry polymer particles obtained in terms of physical-chemical properties, compatibility and drug release performance. Four W/O emulsions containing vancomycin hydrochloride (VAN), an encapsulating PLGA polymer and Poloxamer® 407, chitosan and/or sorbitan monooleate as stabilisers were spray-dried using an ultrasonic atomising nozzle. The microparticles obtained were micron-sized, with a volume mean diameter between 43.2 ± 0.3 and 64.0 ± 12.6 µm, and spherical with a mostly smooth, non-porous surface and with high drug loading (between 14.5 ± 0.6 and 17.1 ± 1.9% w/w). All formulations showed a prolonged and biphasic VAN release profile, with diffusion being the primary release mechanism. Microparticles prepared from the emulsions with Poloxamer® 407 and sorbitan monooleate released VAN rapidly and completely within one day. The release of VAN from microparticles prepared from the emulsion without additives or with chitosan in the inner aqueous phase was significantly decreased; after four days, a cumulative release of 65% and 61%, respectively, was achieved. Microparticles with encapsulated chitosan had the largest mean particle diameter and the slowest release of VAN.
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Affiliation(s)
- Ana Jurić Simčić
- R&D, PLIVA Croatia Ltd., TEVA Group Member, 10000 Zagreb, Croatia; (A.J.S.); (I.E.); (B.C.Č.)
| | - Iva Erak
- R&D, PLIVA Croatia Ltd., TEVA Group Member, 10000 Zagreb, Croatia; (A.J.S.); (I.E.); (B.C.Č.)
| | - Biserka Cetina Čižmek
- R&D, PLIVA Croatia Ltd., TEVA Group Member, 10000 Zagreb, Croatia; (A.J.S.); (I.E.); (B.C.Č.)
| | - Anita Hafner
- Faculty of Pharmacy and Biochemistry, University of Zagreb, 10000 Zagreb, Croatia;
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Ghaffari-Bohlouli P, Simińska-Stanny J, Jafari H, Mirzaei M, Nie L, Delporte C, Shavandi A. Printable hyaluronic acid hydrogel functionalized with yeast-derived peptide for skin wound healing. Int J Biol Macromol 2023; 232:123348. [PMID: 36682658 DOI: 10.1016/j.ijbiomac.2023.123348] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 01/02/2023] [Accepted: 01/16/2023] [Indexed: 01/21/2023]
Abstract
Targeted delivery of bioactive agents, growth factors, and drugs to skin wounds is a growing trend in biomaterials development for wound healing. This study presents a printable hyaluronic acid (HA) based hydrogel to deliver yeast-derived ACE-inhibitory peptide of VLSTSFPPW (VW-9) to the wound site. We first conjugated tyramine (Ty) on the carboxyl groups of the HA to form a phenol-functionalized HA (HA-Ty); then, the carboxylic acid groups of HA-Ty were aminated with ethylenediamine (HA-Ty-NH2). The primary amine groups of the HA-Ty-NH2 could then react with the carboxylic acids of the peptide. The hydrogel was then 3D printed and crosslinked with visible light. The modification of HA was confirmed by 1H NMR and FTIR. The swelling capacity of the conjugated hydrogels was 1.5-fold higher compared to the HA-Ty-NH2 hydrogel. The conjugated peptide did not affect on rheological properties and morphology of the hydrogels. The 3T3-L1 fibroblast cells seeded on the peptide-modified hydrogels exhibited higher viability than the hydrogels without the peptide, indicating that the peptide-enriched hydrogels may have the potential for wound healing applications.
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Affiliation(s)
- Pejman Ghaffari-Bohlouli
- Université Libre de Bruxelles (ULB), École Polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50, CP 165/61, 1050 Brussels, Belgium
| | - Julia Simińska-Stanny
- Université Libre de Bruxelles (ULB), École Polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50, CP 165/61, 1050 Brussels, Belgium
| | - Hafez Jafari
- Université Libre de Bruxelles (ULB), École Polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50, CP 165/61, 1050 Brussels, Belgium
| | - Mahta Mirzaei
- Université Libre de Bruxelles (ULB), École Polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50, CP 165/61, 1050 Brussels, Belgium; Centre for Food Chemistry and Technology, Ghent University Global Campus, Incheon, South Korea; Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, geb. A, B-9000 Ghent, Belgium
| | - Lei Nie
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China.
| | - Christine Delporte
- Laboratory of Pathophysiological and Nutritional Biochemistry, Medical School, Université Libre de Bruxelles, Route de Lennik, 808, CP611, Brussels 1070, Belgium
| | - Amin Shavandi
- Université Libre de Bruxelles (ULB), École Polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50, CP 165/61, 1050 Brussels, Belgium.
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5
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Umar AK. Stem Cell's Secretome Delivery Systems. Adv Pharm Bull 2023; 13:244-258. [PMID: 37342369 PMCID: PMC10278206 DOI: 10.34172/apb.2023.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 10/05/2021] [Accepted: 12/31/2021] [Indexed: 09/01/2023] Open
Abstract
Stem cells' secretome contains biomolecules that are ready to give therapeutic activities. However, the biomolecules should not be administered directly because of their in vivo instability. They can be degraded by enzymes or seep into other tissues. There have been some advancements in localized and stabilized secretome delivery systems, which have increased their effectiveness. Fibrous, in situ, or viscoelastic hydrogel, sponge-scaffold, bead powder/ suspension, and bio-mimetic coating can maintain secretome retention in the target tissue and prolong the therapy by sustained release. Porosity, young's modulus, surface charge, interfacial interaction, particle size, adhesiveness, water absorption ability, in situ gel/film, and viscoelasticity of the preparation significantly affect the quality, quantity, and efficacy of the secretome. Therefore, the dosage forms, base materials, and characteristics of each system need to be examined to develop a more optimal secretome delivery system. This article discusses the clinical obstacles and potential solutions for secretome delivery, characterization of delivery systems, and devices used or potentially used in secretome delivery for therapeutic applications. This article concludes that secretome delivery for various organ therapies necessitates the use of different delivery systems and bases. Coating, muco-, and cell-adhesive systems are required for systemic delivery and to prevent metabolism. The lyophilized form is required for inhalational delivery, and the lipophilic system can deliver secretomes across the blood-brain barrier. Nano-sized encapsulation and surface-modified systems can deliver secretome to the liver and kidney. These dosage forms can be administered using devices such as a sprayer, eye drop, inhaler, syringe, and implant to improve their efficacy through dosing, direct delivery to target tissues, preserving stability and sterility, and reducing the immune response.
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Affiliation(s)
- Abd. Kakhar Umar
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor 45363, Indonesia
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6
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Zheng X, Zhu J, Zheng C, Tan Z, Ji Z, Tao J, Zhao Y, Ji Z, Hu Y. Dissolving Microneedle Arrays as a Hepatitis B Vaccine Delivery System Adjuvanted by APC-Targeted Poly (Lactic-co-Glycolic Acid) (PLGA) Nanoparticles. AAPS PharmSciTech 2023; 24:42. [PMID: 36697935 DOI: 10.1208/s12249-022-02473-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 11/17/2022] [Indexed: 01/26/2023] Open
Abstract
The objective of this study is to develop a new hepatitis B surface antigen (HBsAg) delivery system by coating soluble microneedle arrays with mannose-modified PLGA nanoparticles (MNPs). MNPs of different sizes were synthesized. The effects these nanoparticles on the maturation of dendritic cells were studied by flow cytometry. HBsAg-containing MNPs (HBsAg/MNPs) of the appropriate sizes were coated into water-soluble microneedle arrays. The in vitro characteristics of microneedles arrays and the immune responses after subcutaneous administration in mice were studied. The results showed that PLGA nanoparticles with an average size of about 800 nm showed the most significant effects in stimulating the maturation of dendritic cells. In the water-soluble microneedle array, the targeted PLGA nanoparticles containing HBsAg were distributed discretely with a maximum distribution height of about 280 μm with a drug load of 0.98 ± 0.05 μg/mg. The drug-containing microneedle arrays exhibited excellent mechanical properties and improved biosafety. The results of immune responses in vivo showed that the subcutaneous administration of the microneedle arrays induced the proliferation of splenocyte, secreted specific IL-12 and IFN-γ, and promote the production of IgG in mice. This study verifies the feasibility of soluble composited microneedles administration in hepatitis B immunization, and provides new ideas for the development and application of non-injectable vaccine delivery systems.
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Affiliation(s)
- Xiaoling Zheng
- Women's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China
| | - Jiahuan Zhu
- School of Pharmacy, Zhejiang Pharmaceutical University, Ningbo, 315000, China.,School of Pharmacy, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Caihong Zheng
- Women's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China
| | - Zeng Tan
- School of Pharmacy, Zhejiang Pharmaceutical University, Ningbo, 315000, China
| | - Zhonghua Ji
- School of Pharmacy, Zhejiang Pharmaceutical University, Ningbo, 315000, China
| | - Jin Tao
- School of Pharmacy, Zhejiang Pharmaceutical University, Ningbo, 315000, China
| | - Yunchun Zhao
- Women's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China
| | - Zhuwa Ji
- School of Pharmacy, Zhejiang Pharmaceutical University, Ningbo, 315000, China
| | - Ying Hu
- School of Pharmacy, Zhejiang Pharmaceutical University, Ningbo, 315000, China.
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7
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Zhang R, Jiang Y, Hao L, Yang Y, Gao Y, Zhang N, Zhang X, Song Y. CD44/Folate Dual Targeting Receptor Reductive Response PLGA-Based Micelles for Cancer Therapy. Front Pharmacol 2022; 13:829590. [PMID: 35359873 PMCID: PMC8960309 DOI: 10.3389/fphar.2022.829590] [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: 12/07/2021] [Accepted: 01/10/2022] [Indexed: 11/13/2022] Open
Abstract
In this study, a novel poly (lactic-co-glycolic acid) (PLGA)-based micelle was synthesized, which could improve the therapeutic effect of the antitumor drug doxorubicin hydrochloride (DOX) and reduce its toxic and side effects. The efficient delivery of DOX was achieved by active targeting mediated by double receptors and stimulating the reduction potential in tumor cells. FA-HA-SS-PLGA polymer was synthesized by amidation reaction, and then DOX-loaded micelles were prepared by dialysis method. The corresponding surface method was used to optimize the experimental design. DOX/FA-HA-SS-PLGA micelles with high drug loading rate and encapsulation efficiency were prepared. The results of hydrophilic experiment, critical micelle concentration determination, and hemolysis test all showed that DOX/FA-HA-SS-PLGA micelles had good physicochemical properties and biocompatibility. In addition, both in vitro reduction stimulus response experiment and in vitro release experiment showed that DOX/FA-HA-SS-PLGA micelles had reduction sensitivity. Molecular docking experiments showed that it can bind to the target protein. More importantly, in vitro cytology studies, human breast cancer cells (MCF-7), human non-small cell lung cancer cells (A549), and mouse colon cancer cells (CT26) were used to demonstrate that the dual receptor-mediated endocytosis pathway resulted in stronger cytotoxicity to tumor cells and more significant apoptosis. In and in vivo antitumor experiment, tumor-bearing nude mice were used to further confirm that the micelles with double targeting ligands had better antitumor effect and lower toxicity. These experimental results showed that DOX/FA-HA-SS-PLGA micelles have the potential to be used as chemotherapeutic drugs for precise tumor treatment.
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Affiliation(s)
- Ru Zhang
- Pharmaceutical Engineering Laboratory, Department of Pharmaceutical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Yunying Jiang
- Pharmaceutical Engineering Laboratory, Department of Pharmaceutical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Linkun Hao
- Pharmaceutical Engineering Laboratory, Department of Pharmaceutical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Yang Yang
- Pharmaceutical Engineering Laboratory, Department of Pharmaceutical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Ying Gao
- Pharmaceutical Engineering Laboratory, Department of Pharmaceutical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Ningning Zhang
- Pharmaceutical Engineering Laboratory, Department of Pharmaceutical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Xuecheng Zhang
- Pharmaceutical Engineering Laboratory, Colloge of Marines Life Science, Ocean University of China, Qingdao, China
| | - Yimin Song
- Pharmaceutical Engineering Laboratory, Department of Pharmaceutical Engineering, Qingdao University of Science and Technology, Qingdao, China
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8
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Nasrpour S, Yousefi G, Niakosari M, Aminlari M. Nanoencapsulation of saffron crocin into chitosan/alginate interpolyelectrolyte complexes for oral delivery: A Taguchi approach to design optimization. J Food Sci 2022; 87:1148-1160. [PMID: 35150139 DOI: 10.1111/1750-3841.16052] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 11/22/2021] [Accepted: 12/22/2021] [Indexed: 12/18/2022]
Abstract
Crocin, as a nutraceutical component of saffron (Crocus sativus L.), possesses numerous therapeutic effects. In the current study, a crocin-loaded chitosan/alginate (CS/ALG) nanocarrier was developed for oral delivery. The influence of preparation variables including pH and the concentrations of CS, ALG, and calcium chloride (CaCl2 ) on encapsulation efficiency (EE%) and loading efficiency (LE%) of CS/ALG nanoparticles (NPs) was evaluated by L9 Taguchi orthogonal array (OA). The results showed that at 0.25% w/v CS, 0.1% w/v ALG, pH 4.5, and absence of CaCl2 , crocin was loaded into CS/ALG NPs with EE% and LE% of 91.5% and 27.4%, respectively. Ultrasonication reduced the particle sizes (PSs) up to 100 nm, and freeze-dried NPs reproduced the particles with average size of 90 nm. Scanning electron microscopy (SEM) was successfully used to characterize the structure and morphology of freeze-dried NPs, confirming very fine NPs having sizes less than 100 nm. Crocin loaded into NPs showed higher stability in simulated gastric pH 2 compared to free crocin (2.1% and 7.5% degradation at 60 min, respectively). Furthermore, a pH-dependent sustained crocin release was observed with faster release at pH 2. Overall, the very small PS along with high encapsulation efficiency and stability can enhance crocin oral bioavailability making CS/ALG nanovehicles promising as an effective delivery system. PRACTICAL APPLICATION: Crocin as a functional component of Saffron is not sufficiently stable in gastrointestinal tract and its absorption is not complete. Chitosan/Alginate nanoparticles can encapsulate it efficiently, protect it and enhance its absorption orally. The availability and simplicity of the materials and equipments employed in current research provide the possibility to industrial scale up of the Crocin nanoparticles.
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Affiliation(s)
- Samira Nasrpour
- Department of Food Science and Technology, College of Agriculture, Shiraz University, Shiraz, Iran
| | - Gholamhossein Yousefi
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.,Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehrdad Niakosari
- Department of Food Science and Technology, College of Agriculture, Shiraz University, Shiraz, Iran
| | - Mahmoud Aminlari
- Department of Food Science and Technology, College of Agriculture, Shiraz University, Shiraz, Iran.,Department of Biochemistry, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
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Chinh NT, Manh VQ, Hoang T, Ramadass K, Sathish C, Trung VQ, Kim Ngan TT, Vinu A. Optimizing the component ratio to develop the biocomposites with carrageenan/collagen/allopurinol for the controlled drug release. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2021.102697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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10
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Dosmar E, Walsh J, Doyel M, Bussett K, Oladipupo A, Amer S, Goebel K. Targeting Ocular Drug Delivery: An Examination of Local Anatomy and Current Approaches. Bioengineering (Basel) 2022; 9:41. [PMID: 35049750 PMCID: PMC8772869 DOI: 10.3390/bioengineering9010041] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/03/2022] [Accepted: 01/10/2022] [Indexed: 01/23/2023] Open
Abstract
Ocular drug delivery remains the focus of much modern research. Primary routes of administration include the surface, the intravitreal space, the subretinal space, and the subconjunctival space, each with its own series of unique challenges, limitations, and advantages. Each of these approaches requires careful consideration of the local anatomy, physical barriers, and key cells as well as the interface between the anatomy and the drug or drug system being delivered. While least invasive, the topical route poses a challenge with the many physical barriers that prevent drug penetration into the eye; while injection into the intravitreal, subretinal, and subconjunctival spaces are direct and targeted but limited due to the many internal clearance mechanisms and potential for damage to the eye. Polymeric-based, sustained-release drug delivery systems have been identified as a potential solution to many of these challenges; however, the design and successful implementation of a sustained-release system that is well-tolerated, bioactive, biocompatible, and degradable remains, in many cases, only in the early stages. The drugs and biomaterials in question also require special attention as small chemical changes could result in vastly different outcomes. This paper explores the anatomy and key cells of these four primary drug delivery routes as well as the interface between drug and drug delivery systems and the anatomy, reviewing the recent developments and current state of research in each area. Finally, this paper also examines the frequently used drugs and biomaterials found in ocular drug delivery and summarizes the primary interactions observed.
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Affiliation(s)
- Emily Dosmar
- Department of Biology and Biomedical Engineering, Rose-Hulman Institute of Technology, Terre Haute, IN 47803, USA; (J.W.); (M.D.); (K.B.); (A.O.); (S.A.); (K.G.)
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11
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Narayana S, Ahmed MG, Gowda BHJ, Shetty PK, Nasrine A, Thriveni M, Noushida N, Sanjana A. Recent advances in ocular drug delivery systems and targeting VEGF receptors for management of ocular angiogenesis: A comprehensive review. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2021. [DOI: 10.1186/s43094-021-00331-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Abstract
Background
Angiogenic ocular diseases address the main source of vision impairment or irreversible vision loss. The angiogenesis process depends on the balance between the pro-angiogenic and anti-angiogenic factors. An imbalance between these factors leads to pathological conditions in the body. The vascular endothelial growth factor is the main cause of pathological conditions in the ocular region. Intravitreal injections of anti-angiogenic drugs are selective, safe, specific and revolutionized treatment for ocular angiogenesis. But intravitreal injections are invasive techniques with other severe complications. The area of targeting vascular endothelial growth factor receptors progresses with novel approaches and therapeutically based hope for best clinical outcomes for patients through the developments in anti-angiogenic therapy.
Main text
The present review article gathers prior knowledge about the vascular endothelial growth factor and associated receptors with other angiogenic and anti-angiogenic factors involved in ocular angiogenesis. A focus on the brief mechanism of vascular endothelial growth factor inhibitors in the treatment of ocular angiogenesis is elaborated. The review also covers various recent novel approaches available for ocular drug delivery by comprising a substantial amount of research works. Besides this, we have also discussed in detail the adoption of nanotechnology-based drug delivery systems in ocular angiogenesis by comprising literature having recent advancements. The clinical applications of nanotechnology in terms of ocular drug delivery, risk analysis and future perspectives relating to the treatment approaches for ocular angiogenesis have also been presented.
Conclusion
The novel ocular drug delivery systems involving nanotechnologies are of great importance in the ophthalmological sector to overcome traditional treatments with many drawbacks. This article gives a detailed insight into the various approaches that are currently available to be a road map for future research in the field of ocular angiogenesis disease management.
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12
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Karp F, Satler FS, Busatto CA, Luna JA, Estenoz DA, Turino LN. Modulating drug release from poly(lactic‐co‐glycolic) acid microparticles by the addition of alginate and pectin. J Appl Polym Sci 2021. [DOI: 10.1002/app.50293] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Federico Karp
- Instituto de Desarrollo Tecnológico para la Industria Química INTEC (Universidad Nacional del Litoral and CONICET) Santa Fe Argentina
| | - Florencia S. Satler
- Instituto de Desarrollo Tecnológico para la Industria Química INTEC (Universidad Nacional del Litoral and CONICET) Santa Fe Argentina
| | - Carlos A. Busatto
- Instituto de Desarrollo Tecnológico para la Industria Química INTEC (Universidad Nacional del Litoral and CONICET) Santa Fe Argentina
| | - Julio A. Luna
- Instituto de Desarrollo Tecnológico para la Industria Química INTEC (Universidad Nacional del Litoral and CONICET) Santa Fe Argentina
| | - Diana A. Estenoz
- Instituto de Desarrollo Tecnológico para la Industria Química INTEC (Universidad Nacional del Litoral and CONICET) Santa Fe Argentina
| | - Ludmila N. Turino
- Instituto de Desarrollo Tecnológico para la Industria Química INTEC (Universidad Nacional del Litoral and CONICET) Santa Fe Argentina
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13
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Huang X, Fu Q, Deng Y, Wang F, Xia B, Chen Z, Chen G. Surface roughness of silk fibroin/alginate microspheres for rapid hemostasis in vitro and in vivo. Carbohydr Polym 2021; 253:117256. [DOI: 10.1016/j.carbpol.2020.117256] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 09/22/2020] [Accepted: 10/13/2020] [Indexed: 01/01/2023]
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14
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Wang S, Feng X, Liu P, Wei Y, Xiao B. Blending of PLGA-PEG-PLGA for Improving the Erosion and Drug Release Profile of PCL Microspheres. Curr Pharm Biotechnol 2020; 21:1079-1087. [PMID: 31893987 DOI: 10.2174/1389201021666200101104116] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 12/10/2019] [Accepted: 12/26/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND PCL has a long history as an industrialized biomaterial for preparing microspheres, but its hydrophobic property and slow degradation rate often cause drug degeneration, quite slow drug release rate and undesirable tri-phasic release profile. MATERIALS AND METHODS In this study, we used the blending material of PLGA-PEG-PLGA and PCL to prepare microspheres. The microspheres degradation and drug release behaviors were evaluated through their molecular weight reduction rate, mass loss rate, morphology erosion and drug release profile. The hydrophilic PLGA-PEG-PLGA is expected to improve the degradation and drug release behaviors of PCL microspheres. RESULTS Microspheres in blending materials exhibited faster erosion rates than pure PCL microspheres, forming holes much quickly on the particle's surface for the drug to diffuse out. A higher proportion of PLGA-PEG-PLGA caused faster degradation and erosion rates. The blending microspheres showed much faster drug release rates than pure PCL microspheres. CONCLUSION With blending of 25wt% PLGA-PEG-PLGA, the release rate of microspheres speeded up significantly, while, with a further increase of PLGA-PEG-PLGA proportion (50%, 75%, 100%), it accelerated a little. The microspheres with PCL/PLGA-PEG-PLGA of 1/1 exhibited a linear-like drug release profile. The results could be a guideline for preparing microspheres based on blending materials to obtain a desirable release.
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Affiliation(s)
- Siyuan Wang
- Department of Orthopaedics, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430077, China
| | - Xiaobo Feng
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430022, China
| | - Ping Liu
- Department of Orthopaedics, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430077, China
| | - Youxiu Wei
- Department of Orthopaedics, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430077, China
| | - Baojun Xiao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430022, China
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15
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Baino F, Kargozar S. Regulation of the Ocular Cell/Tissue Response by Implantable Biomaterials and Drug Delivery Systems. Bioengineering (Basel) 2020; 7:E65. [PMID: 32629806 PMCID: PMC7552708 DOI: 10.3390/bioengineering7030065] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 06/26/2020] [Accepted: 06/28/2020] [Indexed: 01/31/2023] Open
Abstract
Therapeutic advancements in the treatment of various ocular diseases is often linked to the development of efficient drug delivery systems (DDSs), which would allow a sustained release while maintaining therapeutic drug levels in the target tissues. In this way, ocular tissue/cell response can be properly modulated and designed in order to produce a therapeutic effect. An ideal ocular DDS should encapsulate and release the appropriate drug concentration to the target tissue (therapeutic but non-toxic level) while preserving drug functionality. Furthermore, a constant release is usually preferred, keeping the initial burst to a minimum. Different materials are used, modified, and combined in order to achieve a sustained drug release in both the anterior and posterior segments of the eye. After giving a picture of the different strategies adopted for ocular drug release, this review article provides an overview of the biomaterials that are used as drug carriers in the eye, including micro- and nanospheres, liposomes, hydrogels, and multi-material implants; the advantages and limitations of these DDSs are discussed in reference to the major ocular applications.
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Affiliation(s)
- Francesco Baino
- Department of Applied Science and Technology, Institute of Materials Physics and Engineering, Politecnico di Torino, 10129 Turin, Italy
| | - Saeid Kargozar
- Tissue Engineering Research Group (TERG), Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran;
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16
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Bulut E. Flurbiprofen-loaded interpenetrating polymer network beads based on alginate, polyvinyl alcohol and methylcellulose: design, characterization and in-vitro evaluation. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:1671-1688. [DOI: 10.1080/09205063.2020.1769800] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Emine Bulut
- Department of Food Processing, Bolvadin Vocational School, Afyon Kocatepe University, Afyonkarahisar, Turkey
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17
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Kim D, Han TH, Hong SC, Park SJ, Lee YH, Kim H, Park M, Lee J. PLGA Microspheres with Alginate-Coated Large Pores for the Formulation of an Injectable Depot of Donepezil Hydrochloride. Pharmaceutics 2020; 12:E311. [PMID: 32244736 PMCID: PMC7238133 DOI: 10.3390/pharmaceutics12040311] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 03/27/2020] [Accepted: 03/30/2020] [Indexed: 11/25/2022] Open
Abstract
As the main symptom of Alzheimer's disease-related dementia is memory loss, patient compliance for donepezil hydrochloride (donepezil), administered as once-daily oral formulations, is poor. Thus, we aimed to design poly(lactic-co-glycolic acid) (PLGA) microspheres (MS) with alginate-coated large pores as an injectable depot of donepezil exhibiting sustained release over 2-3 weeks. The PLGA MS with large pores could provide large space for loading drugs with high loading capacity, and thereby sufficient amounts of drugs were considered to be delivered with minimal use of PLGA MS being injected. However, initial burst release of donepezil from the porous PLGA MS was observed. To reduce this initial burst release, the surface pores were closed with calcium alginate coating using a spray-ionotropic gelation method. The final pore-closed PLGA MS showed in vitro sustained release for approximately 3 weeks, and the initial burst release was remarkably decreased by the calcium alginate coating. In the prediction of plasma drug concentration profiles using convolution method, the mean residence time of the pore-closed PLGA MS was 2.7-fold longer than that of the porous PLGA MS. Therefore, our results reveal that our pore-closed PLGA MS formulation is a promising candidate for the treatment of dementia with high patient compliance.
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Affiliation(s)
| | | | | | | | | | | | | | - Jaehwi Lee
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea; (D.K.); (T.H.H.); (S.-C.H.); (S.J.P.); (Y.H.L.); (H.K.); (M.P.)
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18
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Thai H, Thuy Nguyen C, Thi Thach L, Thi Tran M, Duc Mai H, Thi Thu Nguyen T, Duc Le G, Van Can M, Dai Tran L, Long Bach G, Ramadass K, Sathish CI, Van Le Q. Characterization of chitosan/alginate/lovastatin nanoparticles and investigation of their toxic effects in vitro and in vivo. Sci Rep 2020; 10:909. [PMID: 31969608 PMCID: PMC6976711 DOI: 10.1038/s41598-020-57666-8] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 12/31/2019] [Indexed: 11/10/2022] Open
Abstract
In this study, chitosan and alginate were selected to prepare alginate/chitosan nanoparticles to load the drug lovastatin by the ionic gelation method. The synthesized nanoparticles loaded with drug were characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), laser scattering and differential scanning calorimetry (DSC) methods. The FTIR spectrum of the alginate/chitosan/lovastatin nanoparticles showed that chitosan and alginate interacted with lovastatin through hydrogen bonding and dipolar-dipolar interactions between the C-O, C=O, and OH groups in lovastatin, the C-O, NH, and OH groups in chitosan and the C-O, C=O, and OH groups in alginate. The laser scattering results and SEM images indicated that the alginate/chitosan/lovastatin nanoparticles have a spherical shape with a particle size in the range of 50-80 nm. The DSC diagrams displayed that the melting temperature of the alginate/chitosan/lovastatin nanoparticles was higher than that of chitosan and lower than that of alginate. This result means that the alginate and chitosan interact together, so that the nanoparticles have a larger crystal degree when compared with alginate and chitosan individually. Investigations of the in vitro lovastatin release from the alginate/chitosan/lovastatin nanoparticles under different conditions, including different alginate/chitosan ratios, different solution pH values and different lovastatin contents, were carried out by ultraviolet-visible spectroscopy. The rate of drug release from the nanoparticles is proportional to the increase in the solution pH and inversely proportional to the content of the loaded lovastatin. The drug release process is divided into two stages: a rapid stage over the first 10 hr, then the release becomes gradual and stable. The Korsmeyer-Peppas model is most suitable for the lovastatin release process from the alginate/chitosan/lovastatin nanoparticles in the first stage, and then the drug release complies with other models depending on solution pH in the slow release stage. In addition, the toxicity of alginate/chitosan/lovastatin (abbreviated ACL) nanoparticles was sufficiently low in mice in the acute toxicity test. The LD50 of the drug was higher than 5000 mg/kg, while in the subchronic toxicity test with treatments of 100 mg/kg and 300 mg/kg ACL nanoparticles, there were no abnormal signs, mortality, or toxicity in general to the function or structure of the crucial organs. The results show that the ACL nanoparticles are safe in mice and that these composite nanoparticles might be useful as a new drug carrier.
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Affiliation(s)
- Hoang Thai
- Institute for Tropical Technology, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam. .,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam.
| | - Chinh Thuy Nguyen
- Institute for Tropical Technology, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
| | - Loc Thi Thach
- Vinh, University, 182 Le Duan, Vinh, Nghe An, 460000, Vietnam
| | - Mai Thi Tran
- Institute for Tropical Technology, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
| | - Huynh Duc Mai
- Institute for Tropical Technology, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
| | - Trang Thi Thu Nguyen
- Institute for Tropical Technology, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
| | - Giang Duc Le
- Vinh, University, 182 Le Duan, Vinh, Nghe An, 460000, Vietnam
| | - Mao Van Can
- Department of Pathophysiology, Vietnam Military Medical University, 160 Phung Hung, Phuc La, Ha Dong, Hanoi, 100000, Vietnam
| | - Lam Dai Tran
- Institute for Tropical Technology, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
| | - Giang Long Bach
- NTT Institute of High Technology, Nguyen Tat Thanh University, 300A Nguyen Tat Thanh, District 4, Ho Chi Minh City, 700000, Vietnam
| | - Kavitha Ramadass
- Global Innovative Center for Advanced Nanomaterials, Faculty of Engineering and Built Environment, The University of Newcastle, Callaghan, 2308, NSW, Australia
| | - C I Sathish
- Global Innovative Center for Advanced Nanomaterials, Faculty of Engineering and Built Environment, The University of Newcastle, Callaghan, 2308, NSW, Australia
| | - Quan Van Le
- Department of Functional Exploration, Military Hospital 103, 261 Phung Hung, Phuc La, Ha Dong, Hanoi, 100000, Vietnam.
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19
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Ciro Y, Rojas J, Alhajj MJ, Carabali GA, Salamanca CH. Production and Characterization of Chitosan-Polyanion Nanoparticles by Polyelectrolyte Complexation Assisted by High-Intensity Sonication for the Modified Release of Methotrexate. Pharmaceuticals (Basel) 2020; 13:E11. [PMID: 31936208 PMCID: PMC7168905 DOI: 10.3390/ph13010011] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/03/2020] [Accepted: 01/05/2020] [Indexed: 01/01/2023] Open
Abstract
A promising strategy to improve the effectivity of anticancer treatment and decrease its side effects is to modulate drug release by using nanoparticulates (NPs) as carriers. In this study, methotrexate-loaded chitosan-polyanion nanoparticles were produced by polyelectrolyte complexation assisted by high-intensity sonication, using several anionic polymers, such as the sodium and potassium salts of poly(maleic acid-alt-ethylene) and poly(maleic acid-alt-octadecene), here named PAM-2 and PAM-18, respectively. Such NPs were analyzed and characterized according to particle size, polydispersity index, zeta potential and encapsulation efficiency. Likewise, their physical stability was tested at 4 °C and 40 °C in order to evaluate any change in the previously mentioned particle parameters. The in vitro methotrexate release was assessed at a pH of 7.4, which simulated physiological conditions, and the data were fitted to the heuristic models of order one, Higuchi, Peppas-Sahlin and Korsmeyer-Peppas. The results revealed that most of the MTX-chitosan-polyanion NPs have positive zeta potential values, sizes <280 nm and monodisperse populations, except for the NPs formed with PAM-18 polyanions. Further, the NPs showed adequate physical stability, preventing NP-NP aggregation. Likewise, these carriers modified the MTX release by an anomalous mechanism, where the NPs formed with PAM-2 polymer led to a release mechanism controlled by diffusion and relaxation, whereas the NPs formed with PAM-18 led to a mainly diffusion-controlled release mechanism.
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Affiliation(s)
- Yhors Ciro
- Department of Pharmacy, School of Pharmaceutical and Food Sciences, University of Antioquia, 67 Street No. 53-108, Medellín 050010, Colombia;
| | - John Rojas
- Department of Pharmacy, School of Pharmaceutical and Food Sciences, University of Antioquia, 67 Street No. 53-108, Medellín 050010, Colombia;
| | - Maria J. Alhajj
- Laboratorio de Diseño y Formulación de Productos Químicos y Derivados, Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Naturales, Universidad ICESI, Calle 18 No. 122-135, Cali 760035, Colombia; (M.J.A.); (G.A.C.)
| | - Gustavo A. Carabali
- Laboratorio de Diseño y Formulación de Productos Químicos y Derivados, Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Naturales, Universidad ICESI, Calle 18 No. 122-135, Cali 760035, Colombia; (M.J.A.); (G.A.C.)
| | - Constain H. Salamanca
- Laboratorio de Diseño y Formulación de Productos Químicos y Derivados, Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Naturales, Universidad ICESI, Calle 18 No. 122-135, Cali 760035, Colombia; (M.J.A.); (G.A.C.)
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20
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Zhao F, Chen Y, Hu Y, Lu X, Xiong S, Wu B, Guo Y, Huang P, Yang B. Conformation changes of albumin and lysozyme on electrospun TiO2 nanofibers and its effects on MSC behaviors. Colloids Surf B Biointerfaces 2020; 185:110604. [DOI: 10.1016/j.colsurfb.2019.110604] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 10/08/2019] [Accepted: 10/18/2019] [Indexed: 12/23/2022]
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21
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Zhu J, Qin F, Ji Z, Fei W, Tan Z, Hu Y, Zheng C. Mannose-Modified PLGA Nanoparticles for Sustained and Targeted Delivery in Hepatitis B Virus Immunoprophylaxis. AAPS PharmSciTech 2019; 21:13. [PMID: 31807947 DOI: 10.1208/s12249-019-1526-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 08/27/2019] [Indexed: 02/06/2023] Open
Abstract
The launched hepatitis B vaccine could induce powerful antibodies, whereas it failed to improve potent cellular immune responses due to that the Th2-type response-induced aluminum adjuvant was adopted. Here, to target antigen-presenting cells under the epidermis and induce potent cellular and humoral immune responses, mannose-modified poly D,L-lactide-co-glycolic acid (PLGA) was synthesized and nanoparticle (MNP)-loaded hepatitis B surface antigen (HBsAg) protein was prepared. HBsAg could be slowly released and highly presented to lymphocytes which facilitated to produce long-lasting immunity based on characters of PLGA. In vitro uptake test results showed that MNPs could enhance internalization in bone marrow-derived dendritic cells (BMDCs) and RAW 264.7 cells. Subcutaneous delivery of MNPs into mice kept humoral immune and strengthened cellular immune responses. Experimental results indicated that MNPs showed significantly modified properties compared with parental PLGA nanoparticles. Thus, the obtained MNPs could be a promising vehicle for hepatitis B vaccine delivery.
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22
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Ouyang Q, Hou T, Li C, Hu Z, Liang L, Li S, Zhong Q, Li P. Construction of a composite sponge containing tilapia peptides and chitosan with improved hemostatic performance. Int J Biol Macromol 2019; 139:719-729. [DOI: 10.1016/j.ijbiomac.2019.07.163] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 07/02/2019] [Accepted: 07/25/2019] [Indexed: 01/14/2023]
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23
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Min Q, Liu J, Yu X, Zhang Y, Wu J, Wan Y. Sequential Delivery of Dual Growth Factors from Injectable Chitosan-Based Composite Hydrogels. Mar Drugs 2019; 17:md17060365. [PMID: 31226756 PMCID: PMC6627327 DOI: 10.3390/md17060365] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 06/05/2019] [Accepted: 06/05/2019] [Indexed: 01/08/2023] Open
Abstract
Local administration of platelet-derived growth factor-BB (PGDF-BB) and bone morphogenetic protein-2 (BMP-2) in a sequential release manner could substantially promote bone healing. To achieve this goal, a delivery system that could sustain the release of PGDF-BB and BMP-2 by way of temporal separation was developed. One type of PGDF-BB-encapsulated alginate microsphere and another type of BMP-2-encapsulated microsphere with a core-shell structure were respectively produced using emulsification methods. These two types of microspheres were then embedded into chitosan/glycerophosphate hydrogel for constructing composite gels. Some of them were found to be injectable at ambient temperature and had thermo-sensitive features near physiological temperature and pH. The optimally formulated composite gels showed the ability to control the release of PGDF-BB and BMP-2 in a sequential fashion in which PDGF-BB was released earlier than BMP-2. In vitro release patterns indicated that the release rates could be significantly regulated by varying the embedded amount of the factor-encapsulated microspheres, which can in turn mediate the temporal separation release interval between PGDF-BB and BMP-2. The released PDGF-BB and BMP-2 were detected to be bioactive based on their respective effects on Balb/c 3T3 and C2C12 cells. These results suggest that the presently developed composite gels have the potential for bone repair by synergistically utilizing the early chemotactic effect of PDGF-BB and the subsequent osteogenic and angiogenic functions of PDGF-BB and BMP-2.
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Affiliation(s)
- Qing Min
- School of Pharmacy, Hubei University of Science and Technology, Xianning 437100, China.
| | - Jiaoyan Liu
- College of Life Science and Technology, Huazhong Universityf of Science and Technology, Wuhan 430074, China.
| | - Xiaofeng Yu
- College of Life Science and Technology, Huazhong Universityf of Science and Technology, Wuhan 430074, China.
| | - Yuchen Zhang
- School of Pharmacy, Hubei University of Science and Technology, Xianning 437100, China.
| | - Jiliang Wu
- School of Pharmacy, Hubei University of Science and Technology, Xianning 437100, China.
| | - Ying Wan
- College of Life Science and Technology, Huazhong Universityf of Science and Technology, Wuhan 430074, China.
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24
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He S, Fu W, Zou M, Xing W, Liu Z, Xu D. Construction and evaluation of SAK-HV protein oral dosage form based on chitosan quaternary ammonium salt-PLGA microsphere. J Drug Target 2019; 27:1108-1117. [DOI: 10.1080/1061186x.2019.1605520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Shiming He
- Institute of Military Cognition and Brain Sciences, Beijing, China
- College of Pharmaceutical Sciences, Hebei University, Baoding, China
| | - Wenliang Fu
- Institute of Military Cognition and Brain Sciences, Beijing, China
| | - Minji Zou
- Institute of Military Cognition and Brain Sciences, Beijing, China
| | - Weiwei Xing
- Institute of Military Cognition and Brain Sciences, Beijing, China
| | - Zhongcheng Liu
- College of Pharmaceutical Sciences, Hebei University, Baoding, China
| | - Donggang Xu
- Institute of Military Cognition and Brain Sciences, Beijing, China
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25
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Harguindey A, Roy S, Harris AW, Fairbanks BD, Goodwin AP, Bowman CN, Cha JN. Click Nucleic Acid Mediated Loading of Prodrug Activating Enzymes in PEG-PLGA Nanoparticles for Combination Chemotherapy. Biomacromolecules 2019; 20:1683-1690. [PMID: 30884222 PMCID: PMC6697549 DOI: 10.1021/acs.biomac.9b00040] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The simultaneous delivery of multiple therapeutics to a single site has shown promise for cancer targeting and treatment. However, because of the inherent differences in charge and size between drugs and biomolecules, new approaches are required for colocalization of unlike components in one delivery vehicle. In this work, we demonstrate that triblock copolymers containing click nucleic acids (CNAs) can be used to simultaneously load a prodrug enzyme (cytosine deaminase, CodA) and a chemotherapy drug (doxorubicin, DOX) in a single polymer nanoparticle. CNAs are synthetic analogs of DNA comprised of a thiolene backbone and nucleotide bases that can hybridize to complementary strands of DNA. In this study, CodA was appended with complementary DNA sequences and fluorescent dyes to allow its encapsulation in PEG-CNA-PLGA nanoparticles. The DNA-modified CodA was found to retain its enzyme activity for converting prodrug 5-fluorocytosine (5-FC) to active 5-fluorouracil (5-FU) using a modified fluorescent assay. The DNA-conjugated CodA was then loaded into the PEG-CNA-PLGA nanoparticles and tested for cell cytotoxicity in the presence of the 5-FC prodrug. To study the effect of coloading DOX and CodA within a single nanoparticle, cell toxicity assays were run to compare dually loaded nanoparticles with nanoparticles loaded only with either DOX or CodA. We show that the highest level of cell death occurred when both DOX and CodA were simultaneously entrapped and delivered to cells in the presence of 5-FC.
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Affiliation(s)
- Albert Harguindey
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, United States
| | - Shambojit Roy
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, United States
| | - Alexander W. Harris
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, United States
| | - Benjamin D. Fairbanks
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, United States
| | - Andrew P. Goodwin
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, United States
- Materials Science and Engineering Program, University of Colorado, Boulder, Colorado, United States
| | - Christopher N. Bowman
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, United States
- Materials Science and Engineering Program, University of Colorado, Boulder, Colorado, United States
| | - Jennifer N. Cha
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado, United States
- Materials Science and Engineering Program, University of Colorado, Boulder, Colorado, United States
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26
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Pan M, Cao Y, Chi X, Song Z, Ai N, Sun B. Influence of Processing Conditions on the Physicochemical Properties of a New-Type of Nutritional Drink-Millet Skim Milk Beverage. Molecules 2019; 24:molecules24071338. [PMID: 30987409 PMCID: PMC6479316 DOI: 10.3390/molecules24071338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 03/28/2019] [Accepted: 04/01/2019] [Indexed: 11/16/2022] Open
Abstract
In this experiment, a new type of nutritional drink—millet skim milk beverage—was developed based on combining skim milk with millet and nutritional resource utilization. The effects of NaHCO3 concentrations in soaking water (0, 0.5 g/100 mL, and 1.0 g/100 mL) and blanching time (0, 15, and 30 min) on the physicochemical properties of millet skim milk were studied. The parameter changes caused by the above treatment were evaluated via color analysis, physicochemical analysis and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). Soaking in water containing NaHCO3 had a significant (p < 0.05) effect on pH, specific gravity, viscosity, and stability. The blanching treatment had a significant (p < 0.05) influence on the total solids of the samples. However, blanching only slightly affected the physical properties of the samples. In addition, soaking and blanching treatments had significant (p < 0.05) effects on the b* value of millet skim milk beverage, whereas there was no significant (p > 0.05) change in L* and a*. SDS-PAGE analysis indicated that the blanching treatment had a significant (p < 0.05) effect on band 5 and band 6 and that the soaking treatment also had a significant effect on the bands of 6 and 7 (p < 0.05). By analyzing the substantial effects, we concluded that the optimum process conditions were soaking with 0.5 g/100 mL NaHCO3 solution and blanching for 15 min.
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Affiliation(s)
- Minghui Pan
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing Technology & Business University, Beijing 100048, China.
| | - Yungang Cao
- School of Food and Biological Engineering, Shanxi University of Science and Technology, Xi'an 710021, China.
| | - Xuelu Chi
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing Technology & Business University, Beijing 100048, China.
| | - Zheng Song
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing Technology & Business University, Beijing 100048, China.
| | - Nasi Ai
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing Technology & Business University, Beijing 100048, China.
| | - Baoguo Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing Technology & Business University, Beijing 100048, China.
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Safdar R, Gnanasundaram N, Iyyasami R, Appusamy A, Papadimitriou S, Thanabalan M. Preparation, characterization and stability evaluation of ionic liquid blended chitosan tripolyphosphate microparticles. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.01.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Paiva T, Vieira L, Melo P, Nele M, Pinto JC. In Situ Incorporation of Praziquantel in Polymer Microparticles through Suspension Polymerization for Treatment of Schistosomiasis. MACROMOL REACT ENG 2018. [DOI: 10.1002/mren.201800064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Thamiris Paiva
- Programa de Engenharia Química/COPPE; Universidade Federal do Rio de Janeiro; Cidade Universitária, CP 68502 Rio de Janeiro RJ 21941-972 -Brazil
| | - Lorena Vieira
- Programa de Engenharia Química/COPPE; Universidade Federal do Rio de Janeiro; Cidade Universitária, CP 68502 Rio de Janeiro RJ 21941-972 -Brazil
| | - Príamo Melo
- Programa de Engenharia Química/COPPE; Universidade Federal do Rio de Janeiro; Cidade Universitária, CP 68502 Rio de Janeiro RJ 21941-972 -Brazil
| | - Márcio Nele
- Escola de Química; Universidade Federal do Rio de Janeiro; Cidade Universitária, CP 68525 Rio de Janeiro RJ 21941-598 -Brazil
| | - José Carlos Pinto
- Programa de Engenharia Química/COPPE; Universidade Federal do Rio de Janeiro; Cidade Universitária, CP 68502 Rio de Janeiro RJ 21941-972 -Brazil
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Safdar R, Omar AA, Arunagiri A, Thanabalan M. Synthesis and characterization of imidazolium ILs based chitosan–tripolyphosphate microparticles. ACTA ACUST UNITED AC 2018. [DOI: 10.1088/1757-899x/458/1/012080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Polymer-based carriers for ophthalmic drug delivery. J Control Release 2018; 285:106-141. [DOI: 10.1016/j.jconrel.2018.06.031] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 06/23/2018] [Accepted: 06/25/2018] [Indexed: 12/22/2022]
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Setti C, Suarato G, Perotto G, Athanassiou A, Bayer IS. Investigation of in vitro hydrophilic and hydrophobic dual drug release from polymeric films produced by sodium alginate-MaterBi® drying emulsions. Eur J Pharm Biopharm 2018; 130:71-82. [PMID: 29928979 DOI: 10.1016/j.ejpb.2018.06.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 06/15/2018] [Accepted: 06/17/2018] [Indexed: 02/02/2023]
Abstract
Emulsions are known to be effective carriers of hydrophobic drugs, and particularly injectable emulsions have been successfully implemented for in vivo controlled drug release. Recently, high internal phase emulsions have also been used to produce porous polymeric templates for pharmaceutical applications. However, emulsions containing dissolved biopolymers both in the oil and water phases are very scarce. In this study, we demonstrate such an emulsion, in which the oil phase contains a hydrophobic biodegradable polymer, MaterBi®, and the water phase is aqueous sodium alginate dispersion. The two phases were emulsified simply by ultrasonic processing without any surfactants. The emulsions were stable for several days and were dried into composite solid films with varying MaterBi®/alginate fractions. The films were loaded with two model drugs, a hydrophilic eosin-based cutaneous antiseptic and the hydrophobic curcumin. Drug release capacity of the films was investigated in detail, and controlled release of each model drug was achieved either by tuning the polymer fraction in the films during emulsification or by crosslinking sodium alginate fraction of the films by calcium salt solution immersion. The emulsions can be formulated to carry either a single model drug or both drugs depending on the desired application. Films demonstrate excellent cell biocompatibility against human dermal fibroblast, adult cells.
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Affiliation(s)
- Chiara Setti
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy; Dipartimento di Informatica Bioingegneria, Robotica e Ingegneria dei Sistemi (DIBRIS), Universita Degli Studi di Genova, Via All'Opera Pia 13, 16145 Genova, Italy
| | - Giulia Suarato
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy; Drug Discovery and Development, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Giovanni Perotto
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | | | - Ilker S Bayer
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy.
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Wang C, Luo W, Li P, Li S, Yang Z, Hu Z, Liu Y, Ao N. Preparation and evaluation of chitosan/alginate porous microspheres/Bletilla striata polysaccharide composite hemostatic sponges. Carbohydr Polym 2017; 174:432-442. [DOI: 10.1016/j.carbpol.2017.06.112] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 06/25/2017] [Accepted: 06/28/2017] [Indexed: 10/19/2022]
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Shi C, Liu P, He Y, Liu Y, Feng X, Fu D. Drug-loaded poly(d,l-lactide-co-glycolide) microspheres as treatment for allergic contact dermatitis in mice model. J BIOACT COMPAT POL 2017. [DOI: 10.1177/0883911517690759] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Allergic contact dermatitis is a common skin disease and the current treatment always along with frequent medication and side effect. In this research, poly(d,l-lactide- co-glycolide) microspheres encapsulating tacrolimus are first employed as a therapy of allergic contact dermatitis in mice model by subcutaneous injection. Allergic contact dermatitis is successfully induced in BALB/c mice by repeated painting of dinitrofluorobenzene on mice ear. Tacrolimus is efficiently encapsulated into poly(d,l-lactide- co-glycolide) microspheres by emulsion evaporation method, and then the microspheres are subcutaneously injected into dermatitis-suffered BALB/c mice. We find that the dermatitis mice treated with tacrolimus-loaded microspheres get a sustained suppression on ear swelling, dermatitis index, inflammatory cell accumulation, and serum immunoglobulin E concentration. The curative effect of tacrolimus-loaded microspheres is similar to daily tacrolimus injection and is even better in the inhibition of ear swelling. Dermatitis mice treated with blank microspheres get no curative effect during the whole experiment. The data suggest that subcutaneous injection of drug-loaded microspheres could be a potential candidate for the management of allergic contact dermatitis.
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Affiliation(s)
- Chen Shi
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology (HUST), Wuhan, P.R. China
| | - Ping Liu
- Department of Orthopaedics, Liyuan Hospital, Tongji Medical College, Huazhong University of Science & Technology (HUST), Wuhan, P.R. China
| | - Yu He
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology (HUST), Wuhan, P.R. China
| | - Yongwei Liu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology (HUST), Wuhan, P.R. China
| | - Xiaobo Feng
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology (HUST), Wuhan, P.R. China
| | - Dehao Fu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology (HUST), Wuhan, P.R. China
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A bridging SF/Alg composite scaffold loaded NGF for spinal cord injury repair. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:81-87. [PMID: 28482594 DOI: 10.1016/j.msec.2017.02.102] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 12/19/2016] [Accepted: 02/21/2017] [Indexed: 11/22/2022]
Abstract
Neurons loss and axons degeneration after spinal cord injury (SCI) gradually give rise to result in functional motor and sensory impairment. A bridging biomaterial scaffold that allows the axons to grow through has been investigated for the repair of injured spinal cord. In this study, we introduced a silk fibroin (SF)-based neurobridge as scaffold enriched with/without nerve growth factor (NGF) that can be utilized as a therapeutic approach for spinal cord repair. NGF released from alginate (Alg) microspheres on SF scaffold (SF/Alg composites scaffolds) to the central lesion site of SCI significantly enhanced the sparing of spinal cord tissue and increased the number of surviving neurons. This optimal multi-disciplinary approach of combining biomaterials, controlled-release microspheres and neurotrophic factors offers a promising treatment for the injured spinal cord.
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Kang-Mieler JJ, Dosmar E, Liu W, Mieler WF. Extended ocular drug delivery systems for the anterior and posterior segments: biomaterial options and applications. Expert Opin Drug Deliv 2016; 14:611-620. [PMID: 27551742 DOI: 10.1080/17425247.2016.1227785] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
INTRODUCTION The development of new therapies for treating various eye conditions has led to a demand for extended release delivery systems, which would lessen the need for frequent application while still achieving therapeutic drug levels in the target tissues. Areas covered: Following an overview of the different ocular drug delivery modalities, this article surveys the biomaterials used to develop sustained release drug delivery systems. Microspheres, nanospheres, liposomes, hydrogels, and composite systems are discussed in terms of their primary materials. The advantages and disadvantages of each drug delivery system are discussed for various applications. Recommendations for modifications and strategies for improvements to these basic systems are also discussed. Expert opinion: An ideal sustained release drug delivery system should be able to encapsulate and deliver the necessary drug to the target tissues at a therapeutic level without any detriment to the drug. Drug encapsulation should be as high as possible to minimize loss and unless it is specifically desired, the initial burst of drug release should be kept to a minimum. By modifying various biomaterials, it is possible to achieve sustained drug delivery to both the anterior and posterior segments of the eye.
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Affiliation(s)
- Jennifer J Kang-Mieler
- a Department of Biomedical Engineering , Illinois Institute of Technology , Chicago , IL , USA
| | - Emily Dosmar
- a Department of Biomedical Engineering , Illinois Institute of Technology , Chicago , IL , USA
| | - Wenqiang Liu
- a Department of Biomedical Engineering , Illinois Institute of Technology , Chicago , IL , USA
| | - William F Mieler
- b Department of Ophthalmology and Visual Sciences , University of Illinois at Chicago , Chicago , IL , USA
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Noreen A, Zia KM, Zuber M, Ali M, Mujahid M. A critical review of algal biomass: A versatile platform of bio-based polyesters from renewable resources. Int J Biol Macromol 2016; 86:937-49. [DOI: 10.1016/j.ijbiomac.2016.01.067] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2015] [Revised: 01/09/2016] [Accepted: 01/19/2016] [Indexed: 10/22/2022]
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Belinsky GS, Sreekumar B, Andrejecsk JW, Saltzman WM, Gong J, Herzog RI, Lin S, Horsley V, Carpenter TO, Chung C. Pigment epithelium-derived factor restoration increases bone mass and improves bone plasticity in a model of osteogenesis imperfecta type VI via Wnt3a blockade. FASEB J 2016; 30:2837-48. [PMID: 27127101 DOI: 10.1096/fj.201500027r] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 04/18/2016] [Indexed: 12/23/2022]
Abstract
Null mutations in for pigment epithelium-derived factor (PEDF), the protein product of the SERPINF1 gene, are the cause of osteogenesis imperfecta (OI) type VI. The PEDF-knockout (KO) mouse captures crucial elements of the human disease, including diminished bone mineralization and propensity to fracture. Our group and others have demonstrated that PEDF directs human mesenchymal stem cell (hMSC) commitment to the osteoblast lineage and modulates Wnt/β-catenin signaling, a major regulator of bone development; however, the ability of PEDF to restore bone mass in a mouse model of OI type VI has not been determined. In this study, PEDF delivery increased trabecular bone volume/total volume by 52% in 6-mo-old PEDF-KO mice but not in wild-type mice. In young (19-d-old) PEDF-KO mice, PEDF restoration increased bone volume fraction by 35% and enhanced biomechanical parameters of bone plasticity. A Wnt-green fluorescent protein reporter demonstrated dynamic changes in Wnt/β-catenin signaling characterized by early activation and marked suppression during terminal differentiation of hMSCs. Continuous Wnt3a exposure impeded mineralization of hMSCs, whereas the combination of Wnt3a and PEDF potentiated mineralization. Interrogation of the PEDF sequence identified a conserved motif found in other Wnt modulators, such as the dickkopf proteins. Mutation of a single amino acid on a 34-mer PEDF peptide increased mineralization of hMSC cultures compared with the native peptide sequence. These results indicate that PEDF counters Wnt signaling to allow for osteoblast differentiation and provides a mechanistic insight into how the PEDF null state results in OI type VI.-Belinsky, G. S., Sreekumar, B., Andrejecsk, J. W., Saltzman, W. M., Gong, J., Herzog, R. I., Lin, S., Horsley, V., Carpenter, T. O., Chung, C. Pigment epithelium-derived factor restoration increases bone mass and improves bone plasticity in a model of osteogenesis imperfecta type VI via Wnt3a blockade.
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Affiliation(s)
- Glenn S Belinsky
- Department of Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Bharath Sreekumar
- Department of Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Jillian W Andrejecsk
- Department of Biomedical Engineering, Yale University, New Haven, Connecticut, USA
| | - W Mark Saltzman
- Department of Biomedical Engineering, Yale University, New Haven, Connecticut, USA
| | - Jingjing Gong
- Department of Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Raimund I Herzog
- Department of Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Samantha Lin
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut, USA
| | - Valerie Horsley
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut, USA
| | - Thomas O Carpenter
- Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Chuhan Chung
- Department of Medicine, Yale University School of Medicine, New Haven, Connecticut, USA; Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut, USA
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Ghosh B, Nowak BF, Bridle AR. Alginate Microencapsulation for Oral Immunisation of Finfish: Release Characteristics, Ex Vivo Intestinal Uptake and In Vivo Administration in Atlantic Salmon, Salmo salar L. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2015; 17:841-853. [PMID: 26410294 DOI: 10.1007/s10126-015-9663-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 08/24/2015] [Indexed: 06/05/2023]
Abstract
This study examined the feasibility of alginate microcapsules manufactured using a low-impact technology and reagents to protect orally delivered immunogens for use as immunoprophylactics for fish. Physical characteristics and protein release kinetics of the microcapsules were examined at different pH and temperature levels using a microencapsulated model protein, bovine serum albumin (BSA). Impact of the microencapsulation process on contents was determined by analysing change in bioactivity of microencapsulated lysozyme. Feasibility of the method for oral immunoprophylaxis of finfish was assessed using FITC-labelled microcapsules. These were applied to distal intestinal explants of Atlantic salmon (Salmo salar) to investigate uptake ex vivo. Systemic distribution of microcapsules was investigated by oral administration of FITC-labelled microcapsules to Atlantic salmon fry by incorporating into feed. The microcapsules produced were structurally robust and retained surface integrity, with a modal size distribution of 250-750 nm and a tendency to aggregate. Entrapment efficiency of microencapsulation was 51.2 % for BSA and 43.2 % in the case of lysozyme. Microcapsules demonstrated controlled release of protein, which increased with increasing pH or temperature, and the process had no significant negative effect on bioactivity of lysozyme. Uptake of fluorescent-labelled microcapsules was clearly demonstrated by intestinal explants over a 24-h period. Evidence of microcapsules was found in the intestine, spleen, kidney and liver of fry following oral administration. Amenability of the microcapsules to intestinal uptake and distribution reinforced the strong potential for use of this microencapsulation method in oral immunoprophylaxis of finfish using sensitive immunogenic substances.
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Affiliation(s)
- Bikramjit Ghosh
- Institute for Marine and Antarctic Studies, University of Tasmania, Locked Bag 1370, Launceston, Tasmania, 7250, Australia.
| | - Barbara F Nowak
- Institute for Marine and Antarctic Studies, University of Tasmania, Locked Bag 1370, Launceston, Tasmania, 7250, Australia.
| | - Andrew R Bridle
- Institute for Marine and Antarctic Studies, University of Tasmania, Locked Bag 1370, Launceston, Tasmania, 7250, Australia.
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Belščak-Cvitanović A, Đorđević V, Karlović S, Pavlović V, Komes D, Ježek D, Bugarski B, Nedović V. Protein-reinforced and chitosan-pectin coated alginate microparticles for delivery of flavan-3-ol antioxidants and caffeine from green tea extract. Food Hydrocoll 2015. [DOI: 10.1016/j.foodhyd.2015.05.039] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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40
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Alginate based polyurethanes: A review of recent advances and perspective. Int J Biol Macromol 2015; 79:377-87. [DOI: 10.1016/j.ijbiomac.2015.04.076] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 04/25/2015] [Accepted: 04/28/2015] [Indexed: 11/19/2022]
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Patel M, Moon HJ, Jung BK, Jeong B. Microsphere-Incorporated Hybrid Thermogel for Neuronal Differentiation of Tonsil Derived Mesenchymal Stem Cells. Adv Healthc Mater 2015; 4:1565-74. [PMID: 26033880 DOI: 10.1002/adhm.201500224] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 04/30/2015] [Indexed: 12/20/2022]
Abstract
Neuronal differentiation of tonsil-derived mesenchymal stem cells (TMSCs) is investigated in a 3D hybrid system. The hybrid system is prepared by increasing the temperature of poly(ethylene glycol)-poly(l-alanine) aqueous solution to 37 °C through the heat-induced sol-to-gel transition, in which TMSCs and growth factor releasing microspheres are suspended. The in situ formed gel exhibits a modulus of 800 Pa at 37 °C, similar to that of brain tissue, and it is robust enough to hold the microspheres and cells during the 3D culture of TMSCs. The neuronal growth factors are released over 12-18 d, and the TMSCs in a spherical shape initially undergo multipolar elongation during the 3D culture. Significantly higher expressions of the neuronal biomarkers such as nuclear receptor related protein (Nurr-1), neuron specific enolase, microtubule associated protein-2, neurofilament-M, and glial fibrillary acidic protein are observed in both mRNA level and protein level in the hybrid systems than in the control experiments. This study proves the significance of a controlled drug delivery concept in tissue engineering or regenerative medicine, and a 3D hybrid system with controlled release of growth factors from microspheres in a thermogel can be a very promising tool.
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Affiliation(s)
- Madhumita Patel
- Department of Chemistry and Nano Science; Ewha Womans University; 52 Ewhayeodae-gil Seodaemun-gu Seoul 120-750 South Korea
| | - Hyo Jung Moon
- Department of Chemistry and Nano Science; Ewha Womans University; 52 Ewhayeodae-gil Seodaemun-gu Seoul 120-750 South Korea
| | - Bo Kyung Jung
- Department of Chemistry and Nano Science; Ewha Womans University; 52 Ewhayeodae-gil Seodaemun-gu Seoul 120-750 South Korea
| | - Byeongmoon Jeong
- Department of Chemistry and Nano Science; Ewha Womans University; 52 Ewhayeodae-gil Seodaemun-gu Seoul 120-750 South Korea
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Hamid Akash MS, Rehman K, Chen S. Natural and Synthetic Polymers as Drug Carriers for Delivery of Therapeutic Proteins. POLYM REV 2015. [DOI: 10.1080/15583724.2014.995806] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Zhai P, Chen XB, Schreyer DJ. PLGA/alginate composite microspheres for hydrophilic protein delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 56:251-9. [PMID: 26249587 DOI: 10.1016/j.msec.2015.06.015] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 05/11/2015] [Accepted: 06/09/2015] [Indexed: 11/16/2022]
Abstract
Poly(lactic-co-glycolic acid) (PLGA) microspheres and PLGA/alginate composite microspheres were prepared by a novel double emulsion and solvent evaporation technique and loaded with bovine serum albumin (BSA) or rabbit anti-laminin antibody protein. The addition of alginate and the use of a surfactant during microsphere preparation increased the encapsulation efficiency and reduced the initial burst release of hydrophilic BSA. Confocal laser scanning microcopy (CLSM) of BSA-loaded PLGA/alginate composite microspheres showed that PLGA, alginate, and BSA were distributed throughout the depths of microspheres; no core/shell structure was observed. Scanning electron microscopy revealed that PLGA microspheres erode and degrade more quickly than PLGA/alginate composite microspheres. When loaded with anti-laminin antibody, the function of released antibody was well preserved in both PLGA and PLGA/alginate composite microspheres. The biocompatibility of PLGA and PLGA/alginate microspheres were examined using four types of cultured cell lines, representing different tissue types. Cell survival was variably affected by the inclusion of alginate in composite microspheres, possibly due to the sensitivity of different cell types to excess calcium that may be released from the calcium cross-linked alginate.
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Affiliation(s)
- Peng Zhai
- Department of Anatomy and Cell Biology, University of Saskatchewan, S7N5E5, Canada; Division of Biomedical Engineering, University of Saskatchewan, S7N5A9, Canada
| | - X B Chen
- Department of Mechanical Engineering, University of Saskatchewan, S7N5A9, Canada; Division of Biomedical Engineering, University of Saskatchewan, S7N5A9, Canada
| | - David J Schreyer
- Department of Anatomy and Cell Biology, University of Saskatchewan, S7N5E5, Canada; Division of Biomedical Engineering, University of Saskatchewan, S7N5A9, Canada.
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Rong JJ, Liang M, Xuan FQ, Sun JY, Zhao LJ, Zhen HZ, Tian XX, Liu D, Zhang QY, Peng CF, Yao TM, Li F, Wang XZ, Han YL, Yu WT. Alginate-calcium microsphere loaded with thrombin: A new composite biomaterial for hemostatic embolization. Int J Biol Macromol 2015; 75:479-88. [DOI: 10.1016/j.ijbiomac.2014.12.043] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Revised: 12/27/2014] [Accepted: 12/30/2014] [Indexed: 12/13/2022]
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45
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Prajapati VD, Jani GK, Kapadia JR. Current knowledge on biodegradable microspheres in drug delivery. Expert Opin Drug Deliv 2015; 12:1283-99. [DOI: 10.1517/17425247.2015.1015985] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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46
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Song TH, Jang J, Choi YJ, Shim JH, Cho DW. 3D-Printed Drug/Cell Carrier Enabling Effective Release of Cyclosporin A for Xenogeneic Cell-Based Therapy. Cell Transplant 2015; 24:2513-25. [PMID: 25608278 DOI: 10.3727/096368915x686779] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Systemic administration of the immunosuppressive drug cyclosporin A (CsA) is frequently associated with a number of side effects; therefore, sometimes it cannot be applied in sufficient dosage after allogeneic or xenogeneic cell transplantation. Local delivery is a possible solution to this problem. We used 3D printing to develop a CsA-loaded 3D drug carrier for the purpose of local and sustained delivery of CsA. The carrier is a hybrid of CsA-poly(lactic-co-glycolic acid) (PLGA) microsphere-loaded hydrogel and a polymeric framework so that external force can be endured under physiological conditions. The expression of cytokines, which are secreted by spleen cells activated by Con A, and which are related to immune rejection, was significantly decreased in vitro by the released CsA from the drug carrier. Drug carriers seeded with xenogeneic cells (human lung fibroblast) were subcutaneously implanted into the BALB/c mouse. As a result, T-cell-mediated rejection was also significantly suppressed for 4 weeks. These results show that the developed 3D drug carrier can be used as an effective xenogeneic cell delivery system with controllable immunosuppressive drugs for cell-based therapy.
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Affiliation(s)
- Tae-Ha Song
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Hyoja-dong, Nam-gu, Pohang, Kyungbuk, Korea
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Singh BK, Sirohi R, Archana D, Jain A, Dutta PK. Porous Chitosan Scaffolds: A Systematic Study for Choice of Crosslinker and Growth Factor Incorporation. INT J POLYM MATER PO 2014. [DOI: 10.1080/00914037.2014.936596] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Bulut E, Şanlı O. Novel ionically crosslinked acrylamide-grafted poly(vinyl alcohol)/sodium alginate/sodium carboxymethyl cellulose pH-sensitive microspheres for delivery of Alzheimer's drug donepezil hydrochloride: Preparation and optimization of release conditions. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2014; 44:431-42. [DOI: 10.3109/21691401.2014.962741] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Moss DM, Siccardi M. Optimizing nanomedicine pharmacokinetics using physiologically based pharmacokinetics modelling. Br J Pharmacol 2014; 171:3963-79. [PMID: 24467481 DOI: 10.1111/bph.12604] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 12/13/2013] [Accepted: 01/06/2014] [Indexed: 12/16/2022] Open
Abstract
The delivery of therapeutic agents is characterized by numerous challenges including poor absorption, low penetration in target tissues and non-specific dissemination in organs, leading to toxicity or poor drug exposure. Several nanomedicine strategies have emerged as an advanced approach to enhance drug delivery and improve the treatment of several diseases. Numerous processes mediate the pharmacokinetics of nanoformulations, with the absorption, distribution, metabolism and elimination (ADME) being poorly understood and often differing substantially from traditional formulations. Understanding how nanoformulation composition and physicochemical properties influence drug distribution in the human body is of central importance when developing future treatment strategies. A helpful pharmacological tool to simulate the distribution of nanoformulations is represented by physiologically based pharmacokinetics (PBPK) modelling, which integrates system data describing a population of interest with drug/nanoparticle in vitro data through a mathematical description of ADME. The application of PBPK models for nanomedicine is in its infancy and characterized by several challenges. The integration of property-distribution relationships in PBPK models may benefit nanomedicine research, giving opportunities for innovative development of nanotechnologies. PBPK modelling has the potential to improve our understanding of the mechanisms underpinning nanoformulation disposition and allow for more rapid and accurate determination of their kinetics. This review provides an overview of the current knowledge of nanomedicine distribution and the use of PBPK modelling in the characterization of nanoformulations with optimal pharmacokinetics.
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Affiliation(s)
- Darren Michael Moss
- Molecular and Clinical Pharmacology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
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Arthanari S, Renukadevi P, Saravanakumar V. Evaluation of lactose stabilized tetanus toxoid encapsulated into alginate, HPMC composite microspheres. J IND ENG CHEM 2014. [DOI: 10.1016/j.jiec.2013.09.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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