251
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Self-crosslinked human serum albumin nanocarriers for systemic delivery of polymerized siRNA to tumors. Biomaterials 2013; 34:9475-85. [PMID: 24050874 DOI: 10.1016/j.biomaterials.2013.08.085] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Accepted: 08/27/2013] [Indexed: 12/26/2022]
Abstract
The safe and effective systemic delivery of siRNA is a prerequisite for the successful development of siRNA-based cancer therapeutics. For the enhanced delivery of siRNA, cationic lipids and polymers have been widely used as siRNA carriers to form electrolyte complexes with anionic siRNA. However, the considerable toxicity of strong cationic-charged molecules hampers their clinical use. In this study, we utilized human serum albumin (HSA), which is the most abundant of the plasma proteins, as a siRNA carrier for systemic tumor-targeted siRNA delivery. Both HSA and siRNA molecules were thiol-introduced to improve the binding affinity for each other. The resulting thiolated HSA (tHSA) and polymerized siRNA (psi) formed stable nanosized complexes (psi-tHSAs) by chemical crosslinking and self-crosslinking. After internalization, the psi-tHSAs showed target gene silencing activity in vitro comparable to conventional Lipofectamine™-siRNA complexes, without remarkable cytotoxicity. After intravenous injection in tumor-bearing mice, psi-tHSAs accumulated specifically at the tumor sites, leading to efficient gene silencing in the tumors in a sequential manner. The therapeutic VEGF siRNA was loaded into psi-tHSAs, which significantly inhibited tumor-related angiogenesis in PC-3 tumor xenografts and resulted in retarding the growth of PC-3 tumors. The results showed that self-crosslinked psi-tHSA nanocarriers might provide a promising approach for the systemic siRNA therapy of various human cancers.
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252
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Luo Y, Teng Z, Wang TTY, Wang Q. Cellular uptake and transport of zein nanoparticles: effects of sodium caseinate. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:7621-7629. [PMID: 23859760 DOI: 10.1021/jf402198r] [Citation(s) in RCA: 112] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Cellular evaluation of zein nanoparticles has not been studied systematically due to their poor redispersibility. Caseinate (CAS)-stabilized zein nanoparticles have been recently developed with better redispersibility in salt solutions. In this study, zein-CAS nanoparticles were prepared with different zein/CAS mass ratios. The prepared nanoparticles demonstrated good stabilities to maintain particle size (120-140 nm) in cell culture medium and HBSS buffer at 37 °C. The nanoparticles showed no cytotoxicity for Caco-2 cells for 72 h. CAS not only significantly enhanced cell uptake of zein nanoparticles in a concentration- and time-dependent manner but also remarkably improved epithelial transport through Caco-2 cell monolayer. The cell uptake of zein-CAS nanoparticles indicated an energy-dependent endocytosis process as evidenced by cell uptake under blocking conditions, that is, 4 °C, sodium azide, and colchicine. Fluorescent microscopy clearly showed the internalization of zein-CAS nanoparticles. This study may shed some light on the cellular evaluations of hydrophobic protein nanoparticles.
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Affiliation(s)
- Yangchao Luo
- 0112 Skinner Building, Department of Nutrition and Food Science, University of Maryland , College Park, Maryland 20742, United States
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253
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Spizzirri UG, Cirillo G, Curcio M, Altimari I, Picci N, Iemma F. Stabilization of oxidable vitamins by flavonoid-based hydrogels. REACT FUNCT POLYM 2013. [DOI: 10.1016/j.reactfunctpolym.2013.05.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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254
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Elzoghby AO, Helmy MW, Samy WM, Elgindy NA. Spray-dried casein-based micelles as a vehicle for solubilization and controlled delivery of flutamide: Formulation, characterization, and in vivo pharmacokinetics. Eur J Pharm Biopharm 2013; 84:487-96. [DOI: 10.1016/j.ejpb.2013.01.005] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 01/07/2013] [Accepted: 01/09/2013] [Indexed: 01/10/2023]
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255
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Gutiérrez FJ, Albillos SM, Casas-Sanz E, Cruz Z, García-Estrada C, García-Guerra A, García-Reverter J, García-Suárez M, Gatón P, González-Ferrero C, Olabarrieta I, Olasagasti M, Rainieri S, Rivera-Patiño D, Rojo R, Romo-Hualde A, Sáiz-Abajo MJ, Mussons ML. Methods for the nanoencapsulation of β-carotene in the food sector. Trends Food Sci Technol 2013. [DOI: 10.1016/j.tifs.2013.05.007] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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256
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Hu B, Huang QR. Biopolymer based nano-delivery systems for enhancing bioavailability of nutraceuticals. CHINESE JOURNAL OF POLYMER SCIENCE 2013. [DOI: 10.1007/s10118-013-1331-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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257
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Elzoghby AO, Saad NI, Helmy MW, Samy WM, Elgindy NA. Ionically-crosslinked milk protein nanoparticles as flutamide carriers for effective anticancer activity in prostate cancer-bearing rats. Eur J Pharm Biopharm 2013; 85:444-51. [PMID: 23872177 DOI: 10.1016/j.ejpb.2013.07.003] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2013] [Revised: 06/14/2013] [Accepted: 07/09/2013] [Indexed: 02/07/2023]
Abstract
In this study, casein (CAS) nanoparticles were used to encapsulate the hydrophobic anticancer drug, flutamide (FLT), aiming at controlling its release, enhancing its anti-tumor activity, and reducing its hepatotoxicity. The nanoparticles were prepared by emulsification of CAS, at pH below its isoelectric point, and stabilized via ionic-crosslinking with sodium tripolyphosphate (TPP). The nanoparticles were spherical and positively charged with a size below 100 nm and exhibited a sustained drug release up to 4 days. After intravenous administration into prostate cancer-bearing rats for 28 days, FLT-loaded CAS nanoparticles showed a higher anti-tumor efficacy as revealed by a significantly higher % reduction in PSA serum level (75%) compared to free FLT (55%). Moreover, the nanoparticles demonstrated a marked reduction in the relative weights of both prostate tumor and seminal vesicle (43% and 32%) compared to free FLT (12% and 18%), respectively. A significantly higher anti-proliferative, anti-angiogenic, and apoptotic effects was demonstrated by the nanoparticles compared to drug solution as evidenced by their ability to decrease the expression of the proliferative marker (Ki-67) and reduce the level of tumor angiogenic markers (VEGF and IGF-1) as well as their ability to activate caspase-3 with subsequent induction of apoptosis in prostate cancer cells. Conclusively, these novel ionically-crosslinked milk protein nanovehicles offer a promising carrier to allow controlled intravenous delivery of hydrophobic anticancer drugs.
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Affiliation(s)
- Ahmed O Elzoghby
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt.
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258
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Micellar Delivery of Flutamide Via Milk Protein Nanovehicles Enhances its Anti-Tumor Efficacy in Androgen-Dependent Prostate Cancer Rat Model. Pharm Res 2013; 30:2654-63. [DOI: 10.1007/s11095-013-1091-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Accepted: 05/28/2013] [Indexed: 12/16/2022]
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259
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Kouass Sahbani S, Klarskov K, Aloui A, Kouass S, Landoulsi A. Protective role of ascorbic acid in the decontamination of cow milk casein by gamma-irradiation. Int J Radiat Biol 2013; 89:411-5. [PMID: 23362934 DOI: 10.3109/09553002.2013.767995] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE The aim of this work was to investigate the protective role of ascorbic acid on irradiation-induced modification of casein. MATERIALS AND METHODS Casein stock solutions were irradiated with increasing doses 2-10 kGy using (60)Co Gamma rays at a dose rate D• = 136.73 Gy/min at room temperature. The total viable microorganism content of cow milk casein was evaluated by Plate Count Agar (PCA) incubation for 48 h at 37°C. Sodium dodecylsulfate gel electrophoresis (SDS-PAGE) and Matrix-Assisted Laser Desorption-Ionization Time-of-Flight mass spectrometry (MALDI-TOF-MS) analysis were used to evaluate the effect of gamma irradiation on casein integrity. RESULTS Gamma irradiation reduced the bacterial contamination of casein solutions at a lower irradiation dose when performed in the presence of ascorbic acid. The irradiation treatment of casein in the absence of ascorbic acid with a dose of 4 kGy could reduce 99% of the original amount of bacterial colonies. However, in the presence of ascorbic acid the irradiation treatment of casein with a dose lower than 2 kGy could reduce 99% of the original amount of bacterial colonies which suggested that the irradiation dose lower than 2 kGy achieved almost the entire decontamination result. SDS-PAGE and MALDI-TOF-MS analysis showed that ascorbic acid protected cow milk casein from degradation and subsequent aggregation probably by scavenging oxygen and protein radicals produced by the irradiation. CONCLUSIONS It is demonstrated that the combination of gamma irradiation and ascorbic acid produce additive effects, providing acceptable hygienic quality of cow milk casein and protects caseins against Reactive Oxygen Species (ROS) generated, during the irradiation process.
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Affiliation(s)
- Saloua Kouass Sahbani
- Unité de recherche de Biochimie des lipides et interactions avec les macromolecules, Laboratoire de Biochimie et de Biologie moléculaire, Faculté des sciences de Bizerte, Zarzouna, Tunisia.
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260
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Elzoghby AO, Helmy MW, Samy WM, Elgindy NA. Novel ionically crosslinked casein nanoparticles for flutamide delivery: formulation, characterization, and in vivo pharmacokinetics. Int J Nanomedicine 2013; 8:1721-32. [PMID: 23658490 PMCID: PMC3647443 DOI: 10.2147/ijn.s40674] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
A novel particulate delivery matrix based on ionically crosslinked casein (CAS) nanoparticles was developed for controlled release of the poorly soluble anticancer drug flutamide (FLT). Nanoparticles were fabricated via oil-in-water emulsification then stabilized by ionic crosslinking of the positively charged CAS molecules below their isoelectric point, with the polyanionic crosslinker sodium tripolyphosphate. With the optimal preparation conditions, the drug loading and incorporation efficiency achieved were 8.73% and 64.55%, respectively. The nanoparticles exhibited a spherical shape with a size below 100 nm and a positive zeta potential (+7.54 to +17.3 mV). FLT was molecularly dispersed inside the nanoparticle protein matrix, as revealed by thermal analysis. The biodegradability of CAS nanoparticles in trypsin solution could be easily modulated by varying the sodium tripolyphosphate crosslinking density. A sustained release of FLT from CAS nanoparticles for up to 4 days was observed, depending on the crosslinking density. After intravenous administration of FLT-CAS nanoparticles into rats, CAS nanoparticles exhibited a longer circulation time and a markedly delayed blood clearance of FLT, with the half-life of FLT extended from 0.88 hours to 14.64 hours, compared with drug cosolvent. The results offer a promising method for tailoring biodegradable, drug-loaded CAS nanoparticles as controlled, long-circulating drug delivery systems of hydrophobic anticancer drugs in aqueous vehicles.
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Affiliation(s)
- Ahmed O Elzoghby
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt.
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261
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Shimokawa KI, Saegusa K, Wada Y, Ishii F. Physicochemical properties and controlled drug release of microcapsules prepared by simple coacervation. Colloids Surf B Biointerfaces 2013; 104:1-4. [DOI: 10.1016/j.colsurfb.2012.11.036] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2012] [Accepted: 11/21/2012] [Indexed: 11/17/2022]
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262
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Nakagawa K, Kagemoto M. Characterization of casein-based nanoparticles formed upon freezing by in situ SAXS measurement. Colloids Surf B Biointerfaces 2013; 103:366-74. [DOI: 10.1016/j.colsurfb.2012.10.052] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 10/12/2012] [Accepted: 10/30/2012] [Indexed: 10/27/2022]
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263
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Ye R, Harte F. Casein maps: effect of ethanol, pH, temperature, and CaCl2 on the particle size of reconstituted casein micelles. J Dairy Sci 2013; 96:799-805. [PMID: 23200467 PMCID: PMC4559271 DOI: 10.3168/jds.2012-5838] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2012] [Accepted: 10/21/2012] [Indexed: 12/31/2022]
Abstract
Although conditions favoring casein micelle aggregation are well known, factors promoting the dissociation of the casein micelle are not fully understood. It was our objective to investigate the ethanol-induced dissociation of micellar casein as affected by temperature and a wide range of pH, along with the concentrations of calcium and casein. Two different concentrations of casein micelles were dispersed in imidazole buffer with 0 to 80% ethanol (vol/vol) and 2 and 10mM calcium. Apparent micelle size was determined by dynamic light scattering at 5, 30, and 60°C. In the absence of ethanol, casein precipitation occurred at pH 4.6 in imidazole buffer. Ten to forty percent ethanol promoted casein aggregation (>1,000 nm) and higher temperature (30 and 60°C) enhanced this effect. Higher ethanol concentrations at 50 to 80% induced the dissociation (<40 nm) of the casein micelle upon acidification (pH <5) and alkalization (pH>8) in imidazole buffer. In addition, higher concentrations of casein (0.25mg/mL) and calcium (20mM) caused the formation of larger aggregates (>1,000 nm) in the presence of ethanol when comparing with the initial lower concentrations of casein (0.1mg/mL) and calcium (2mM). Casein micelle dissociation can be achieved near the isoelectric pH by modifying the solvent composition and temperature.
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Affiliation(s)
- Ran Ye
- Department of Food Science and Technology, University of Tennessee, 2605 River Road, Knoxville 37996-4539
| | - Federico Harte
- Department of Food Science and Technology, University of Tennessee, 2605 River Road, Knoxville 37996-4539
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264
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Nitta SK, Numata K. Biopolymer-based nanoparticles for drug/gene delivery and tissue engineering. Int J Mol Sci 2013; 14:1629-54. [PMID: 23344060 PMCID: PMC3565338 DOI: 10.3390/ijms14011629] [Citation(s) in RCA: 346] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Revised: 11/27/2012] [Accepted: 01/07/2013] [Indexed: 01/28/2023] Open
Abstract
There has been a great interest in application of nanoparticles as biomaterials for delivery of therapeutic molecules such as drugs and genes, and for tissue engineering. In particular, biopolymers are suitable materials as nanoparticles for clinical application due to their versatile traits, including biocompatibility, biodegradability and low immunogenicity. Biopolymers are polymers that are produced from living organisms, which are classified in three groups: polysaccharides, proteins and nucleic acids. It is important to control particle size, charge, morphology of surface and release rate of loaded molecules to use biopolymer-based nanoparticles as drug/gene delivery carriers. To obtain a nano-carrier for therapeutic purposes, a variety of materials and preparation process has been attempted. This review focuses on fabrication of biocompatible nanoparticles consisting of biopolymers such as protein (silk, collagen, gelatin, β-casein, zein and albumin), protein-mimicked polypeptides and polysaccharides (chitosan, alginate, pullulan, starch and heparin). The effects of the nature of the materials and the fabrication process on the characteristics of the nanoparticles are described. In addition, their application as delivery carriers of therapeutic drugs and genes and biomaterials for tissue engineering are also reviewed.
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Affiliation(s)
- Sachiko Kaihara Nitta
- Enzyme Research Team, RIKEN Biomass Engineering Program, RIKEN, Saitama 351-0198, Japan; E-Mail:
| | - Keiji Numata
- Enzyme Research Team, RIKEN Biomass Engineering Program, RIKEN, Saitama 351-0198, Japan; E-Mail:
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265
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Narayanan D, Gopikrishna J, Nair SV, Menon D. Proteins and Carbohydrates as Polymeric Nanodrug Delivery Systems: Formulation, Properties, and Toxicological Evaluation. MULTIFACETED DEVELOPMENT AND APPLICATION OF BIOPOLYMERS FOR BIOLOGY, BIOMEDICINE AND NANOTECHNOLOGY 2013. [DOI: 10.1007/12_2012_199] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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266
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Benzaria A, Maresca M, Taieb N, Dumay E. Interaction of curcumin with phosphocasein micelles processed or not by dynamic high-pressure. Food Chem 2012; 138:2327-37. [PMID: 23497893 DOI: 10.1016/j.foodchem.2012.12.017] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 11/29/2012] [Accepted: 12/03/2012] [Indexed: 12/29/2022]
Abstract
The binding of curcumin to native-like phosphocaseins (PC) dispersed in simulated milk ultrafiltrate at pH 6.6 was assessed by fluorescence spectrophotometry. Curcumin binds to native-like PC micelles with ∼1 binding site per casein molecule, and a binding constant of 0.6-5.6 × 10(4)M(-1). Dynamic high pressure (or ultra-high pressure homogenisation, UHPH) at 200 MPa did not affect the binding parameters of curcumin to processed PC. UHPH-processing of PC dispersions at 300 MPa was followed by a slight but significant (p=0.05) increase in the binding constant of curcumin to processed PC, which may result from the significant UHPH-induced dissociation of initial PC micelles into neo-micelles of smaller sizes, and from the corresponding 1.5-2-fold increase in micelle surface area. PC-curcumin complexes were resistant to pepsin but were degraded by pancreatin, providing the possibility of a spatiotemporally controlled release and protection of bound biomolecules. UHPH-processed PC did not induce TC7-cell damage or major inflammation as assessed by LDH release or IL-8 secretion, respectively, compared with native-like PC. PC micelles could provide a valuable submicron system to vectorise drugs and nutrients.
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Affiliation(s)
- Amal Benzaria
- Université Montpellier 2, UMR 1208, Ingénierie des Agropolymères et Technologies Emergentes, Equipe de Biochimie et Technologie Alimentaires cc023, 2, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
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267
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Nguyen C, Christensen JM, Ayres JW. Compression of coated drug beads for sustained release tablet of glipizide: formulation, and dissolution. Pharm Dev Technol 2012; 19:10-20. [DOI: 10.3109/10837450.2012.751402] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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268
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Sáiz-Abajo MJ, González-Ferrero C, Moreno-Ruiz A, Romo-Hualde A, González-Navarro CJ. Thermal protection of β-carotene in re-assembled casein micelles during different processing technologies applied in food industry. Food Chem 2012; 138:1581-7. [PMID: 23411284 DOI: 10.1016/j.foodchem.2012.11.016] [Citation(s) in RCA: 133] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Revised: 09/28/2012] [Accepted: 11/07/2012] [Indexed: 11/25/2022]
Abstract
β-Carotene is a carotenoid usually applied in the food industry as a precursor of vitamin A or as a colourant. β-Carotene is a labile compound easily degraded by light, heat and oxygen. Casein micelles were used as nanostructures to encapsulate, stabilise and protect β-carotene from degradation during processing in the food industry. Self-assembly method was applied to re-assemble nanomicelles containing β-carotene. The protective effect of the nanostructures against degradation during the most common industrial treatments (sterilisation, pasteurisation, high hydrostatic pressure and baking) was proven. Casein micelles protected β-carotene from degradation during heat stabilisation, high pressure processing and the processes most commonly used in the food industry including baking. This opens new possibilities for introducing thermolabile ingredients in bakery products.
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Affiliation(s)
- María-José Sáiz-Abajo
- Centro Nacional de Tecnología y Seguridad Alimentaria - CNTA, Ctra NA-134, km 53, 31570 San Adrián, Navarra, Spain.
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269
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Zhen X, Wang X, Xie C, Wu W, Jiang X. Cellular uptake, antitumor response and tumor penetration of cisplatin-loaded milk protein nanoparticles. Biomaterials 2012; 34:1372-82. [PMID: 23158934 DOI: 10.1016/j.biomaterials.2012.10.061] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Accepted: 10/25/2012] [Indexed: 01/08/2023]
Abstract
The casein nanoparticles cross-linked by transglutaminase were prepared, and cisplatin (CDDP), as a model antitumor drug, was loaded into the casein nanoparticles. These nanoparticles were characterized by dynamic light scattering (DLS), transmission electron microscopy (TEM), and zeta potential. The uptake and penetration of nanoparticles in 2- and 3-dimensional SH-SY5Y cells were examined at 37 °C and 4 °C. The in vivo biodistribution of the nanoparticles was investigated using near-infrared fluorescence (NIRF) imaging and ion-coupled plasma mass spectrometry (ICP-MS). The antitumor effect of CDDP-loaded nanoparticles was evaluated on hepatic H22 tumor-bearing mice model via intravenous administration. It is found that the obtained nanoparticles showed spherical shape with the size of 257 nm, and drug loading content of 10%. These CDDP-loaded casein nanoparticles have the extraordinary capabilities to penetrate cell membrane barriers, target tumor and inhibit tumor growth. The tumor growth inhibition of CDDP-loaded nanoparticles is 1.5-fold higher than that of free CDDP. Further, the penetration examination of the CDDP-loaded casein nanoparticles in the tumor tissue demonstrated that the nanoparticles had the ability to penetrate the tumor and deliver CDDP to the tumor more deeply and affect the cells far from the vasculature.
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Affiliation(s)
- Xu Zhen
- Laboratory of Mesoscopic Chemistry and Department of Polymer Science & Engineering, College of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210093, PR China
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270
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Elzoghby AO, Samy WM, Elgindy NA. Novel Spray-Dried Genipin-Crosslinked Casein Nanoparticles for Prolonged Release of Alfuzosin Hydrochloride. Pharm Res 2012; 30:512-22. [DOI: 10.1007/s11095-012-0897-z] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2012] [Accepted: 10/08/2012] [Indexed: 01/27/2023]
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271
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Sangeetha J, Philip J. The interaction, stability and response to an external stimulus of iron oxide nanoparticle–casein nanocomplexes. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2012.04.049] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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272
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Protein-based nanocarriers as promising drug and gene delivery systems. J Control Release 2012; 161:38-49. [DOI: 10.1016/j.jconrel.2012.04.036] [Citation(s) in RCA: 550] [Impact Index Per Article: 45.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2012] [Revised: 04/20/2012] [Accepted: 04/23/2012] [Indexed: 11/18/2022]
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273
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Bachar M, Mandelbaum A, Portnaya I, Perlstein H, Even-Chen S, Barenholz Y, Danino D. Development and characterization of a novel drug nanocarrier for oral delivery, based on self-assembled β-casein micelles. J Control Release 2012; 160:164-71. [DOI: 10.1016/j.jconrel.2012.01.004] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2011] [Revised: 01/05/2012] [Accepted: 01/06/2012] [Indexed: 12/14/2022]
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274
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Gulfam M, Kim JE, Lee JM, Ku B, Chung BH, Chung BG. Anticancer drug-loaded gliadin nanoparticles induce apoptosis in breast cancer cells. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:8216-8223. [PMID: 22568862 DOI: 10.1021/la300691n] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Nanoscale drug carriers play an important role in regulating the delivery, permeability, and retention of the drugs. Although various carriers have been used to encapsulate anticancer drugs, natural biomaterials are of great benefit for delivery and controlled release of drugs. We used the electrospray deposition system to synthesize gliadin and gliadin-gelatin composite nanoparticles for delivery and controlled release of an anticancer drug (e.g., cyclophosphamide). The size profile and synthesis of nanoparticles was characterized by dynamic light scattering and X-ray diffractometry. Cyclophosphamide was gradually released from the gliadin nanoparticles for 48 h. In contrast, the gliadin-gelatin composite nanoparticles released cyclophosphamide in a rapid manner. Furthermore, we demonstrated that breast cancer cells cultured with cyclophosphamide-loaded 7% gliadin nanoparticles for 24 h became apoptotic, confirmed by Western blotting analysis. Therefore, the gliadin-based nanoparticle could be a powerful tool for delivery and controlled release of anticancer drugs.
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Affiliation(s)
- Muhammad Gulfam
- Department of Bionano Engineering, Hanyang University, Ansan, Korea
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275
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Zou Q, Liu X, Zhao J, Tian F, Zhang HP, Zhang H, Chen W. Microencapsulation of Bifidobacterium bifidum F-35 in Whey Protein-Based Microcapsules by Transglutaminase-Induced Gelation. J Food Sci 2012; 77:M270-7. [DOI: 10.1111/j.1750-3841.2012.02673.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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276
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Kabilan S, Ayyasamy M, Jayavel S, Paramasamy G. Pseudomonas sp. as a Source of Medium Chain Length Polyhydroxyalkanoates for Controlled Drug Delivery: Perspective. Int J Microbiol 2012; 2012:317828. [PMID: 22518140 PMCID: PMC3299479 DOI: 10.1155/2012/317828] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Accepted: 10/27/2011] [Indexed: 01/21/2023] Open
Abstract
Controlled drug delivery technology represents one of the most rapidly advancing areas of science. They offer numerous advantages compared to conventional dosage forms including improved efficacy, reduced toxicity, improved patient compliance and convenience. Over the past several decades, many delivery tools or methods were developed such as viral vector, liposome-based delivery system, polymer-based delivery system, and intelligent delivery system. Recently, nonviral vectors, especially those based on biodegradable polymers, have been widely investigated as vectors. Unlike the other polymers tested, polyhydroxyalkanoates (PHAs) have been intensively investigated as a family of biodegradable and biocompatible materials for in vivo applications as implantable tissue engineering material as well as release vectors for various drugs. On the other hand, the direct use of these polyesters has been hampered by their hydrophobic character and some physical shortcomings, while its random copolymers fulfilled the expectation of biomedical researchers by exhibiting significant mechanical and thermal properties. This paper reviews the strategies adapted to make functional polymer to be utilized as delivery system.
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Affiliation(s)
- Sujatha Kabilan
- UGC-Networking Resource Centre in Biological Sciences, School of Biological Sciences, Madurai Kamaraj University, Madurai 625021, India
| | - Mahalakshmi Ayyasamy
- UGC-Networking Resource Centre in Biological Sciences, School of Biological Sciences, Madurai Kamaraj University, Madurai 625021, India
| | - Sridhar Jayavel
- UGC-Networking Resource Centre in Biological Sciences, School of Biological Sciences, Madurai Kamaraj University, Madurai 625021, India
| | - Gunasekaran Paramasamy
- UGC-Networking Resource Centre in Biological Sciences, School of Biological Sciences, Madurai Kamaraj University, Madurai 625021, India
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277
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Obidike IC, Emeje MO. Microencapsulation enhances the anti-ulcerogenic properties of Entada africana leaf extract. JOURNAL OF ETHNOPHARMACOLOGY 2011; 137:553-561. [PMID: 21704690 DOI: 10.1016/j.jep.2011.06.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2011] [Revised: 04/27/2011] [Accepted: 06/08/2011] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The antiulcer potentials of most plants still remain largely unexplored, despite their prospects evidenced by their use as ethnomedicine. Entada africana (Mimosaceae) has been widely used in Africa for the treatment of skin infections, wounds, tonic for stomach troubles and against diphtheria-like throat complaints. The aim of the present study was to evaluate the anti-ulcer properties of Entada africana (EA) ethanol leaf extract and to obtain a novel multiparticulate pharmaceutical formulation (ACE) with it. MATERIALS AND METHODS Ethanol or Indomethacin was administered to rats after oral administration of EA (200, 400 and 800 mg extract/kg b.w), ACE (400 and 800 mg/kg bw), cimetidine (100mg/kg bw), misoprostol (40 μg/kg bw) or distilled water/saline (vehicle). Anti ulcer property was evaluated by examining and scoring stomach lesions. RESULTS The extract exhibited significant (P<0.01) cytoprotective effect against ethanol and indomethacin induced gastro ulceration. The microcapsules showed enhanced cytoprotective effect against ethanol and indomethacin induced gastro ulceration. Histopathologically, the effects of EA and ACE on mucus epithelia were mild with reduced neutrophil, eosinophil and lymphocytic infiltration in stomach tissues of rats ulcerated with ethanol. CONCLUSIONS Our current findings show that EA and its multiparticulate formulation may be a useful preparation in peptic ulcer disease.
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Affiliation(s)
- I C Obidike
- Department of Pharmacology and Toxicology, National Institute for Pharmaceutical Research and Development, Idu, P.M.B.21 Garki, Abuja, Nigeria
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278
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Elzoghby AO, Samy WM, Elgindy NA. Albumin-based nanoparticles as potential controlled release drug delivery systems. J Control Release 2011; 157:168-82. [PMID: 21839127 DOI: 10.1016/j.jconrel.2011.07.031] [Citation(s) in RCA: 928] [Impact Index Per Article: 71.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Accepted: 07/20/2011] [Indexed: 10/17/2022]
Abstract
Albumin, a versatile protein carrier for drug delivery, has been shown to be nontoxic, non-immunogenic, biocompatible and biodegradable. Therefore, it is ideal material to fabricate nanoparticles for drug delivery. Albumin nanoparticles have gained considerable attention owing to their high binding capacity of various drugs and being well tolerated without any serious side-effects. The current review embodies an in-depth discussion of albumin nanoparticles with respect to types, formulation aspects, major outcomes of in vitro and in vivo investigations as well as site-specific drug targeting using various ligands modifying the surface of albumin nanoparticles with special insights to the field of oncology. Specialized nanotechnological techniques like desolvation, emulsification, thermal gelation and recently nano-spray drying, nab-technology and self-assembly that have been investigated for fabrication of albumin nanoparticles, are also discussed. Nanocomplexes of albumin with other components in the area of drug delivery are also included in this review.
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Affiliation(s)
- Ahmed O Elzoghby
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, El-Khartoum Square, Azarita, Alexandria 21521, Egypt.
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