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Jafari M, Abolmaali SS, Borandeh S, Najafi H, Zareshahrabadi Z, Heidari R, Azarpira N, Zomorodian K, Tamaddon AM. Amphiphilic hyperbranched polyglycerol nanoarchitectures for Amphotericin B delivery in Candida infections. BIOMATERIALS ADVANCES 2022; 139:212996. [PMID: 35891600 DOI: 10.1016/j.bioadv.2022.212996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 05/23/2022] [Accepted: 06/17/2022] [Indexed: 06/15/2023]
Abstract
Although Amphotericin B (AMB) is considered the most effective anti-mycotic agent for treating Candida infections, its clinical use is limited due to its high toxicity. To address this issue, we developed cholesterol-based dendritic micelles of hyperbranched polyglycerol (HPG), including cholesterol-cored HPG (Chol-HPG) and cholesterol end-capped HPG (HPG@Chol), for AMB delivery. The findings suggested that the presence of cholesterol moieties could control AMB loading and release properties. Dendritic micelles inhibited AMB hemolysis and cytotoxicity in HEK 293 and RAW 264.7 cell lines while increasing antifungal activity against C. albicans biofilm formation. Furthermore, significantly lower levels of renal and liver toxicity biomarkers compared to Fungizone® ensured AMB-incorporated dendritic micelle biosafety, which was confirmed by histopathological evaluations. Overall, the Chol-HPG and HPG@Chol dendritic micelles may be a viable alternative to commercially available AMB formulations as well as an effective delivery system for other poorly soluble antifungal agents.
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Affiliation(s)
- Mahboobeh Jafari
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran
| | - Samira Sadat Abolmaali
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran; Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran
| | - Sedigheh Borandeh
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran
| | - Haniyeh Najafi
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran
| | - Zahra Zareshahrabadi
- Department of Parasitology & Mycology, School of Medicines, Shiraz University of Medical Sciences, Shiraz, PO Box 713484-5794, Iran
| | - Reza Heidari
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran
| | - Negar Azarpira
- Transplant Research Center, Shiraz University of Medical Sciences, Mohammad Rasoul-allah Research Tower, Shiraz, PO Box 7193711351, Iran
| | - Kamiar Zomorodian
- Department of Parasitology & Mycology, School of Medicines, Shiraz University of Medical Sciences, Shiraz, PO Box 713484-5794, Iran; Basic Sciences in Infectious Diseases Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, PO Box 713484-5794, Iran.
| | - Ali Mohammad Tamaddon
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran; Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran.
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Toscanini MA, Limeres MJ, Garrido AV, Cagel M, Bernabeu E, Moretton MA, Chiappetta DA, Cuestas ML. Polymeric micelles and nanomedicines: Shaping the future of next generation therapeutic strategies for infectious diseases. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102927] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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3
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Functional block copolymers bearing pendant cinnamyl groups for enhanced solubilization of caffeic acid phenethyl ester. Polym J 2019. [DOI: 10.1038/s41428-019-0297-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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4
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Jansook P, Pichayakorn W, Ritthidej GC. Amphotericin B-loaded solid lipid nanoparticles (SLNs) and nanostructured lipid carrier (NLCs): effect of drug loading and biopharmaceutical characterizations. Drug Dev Ind Pharm 2018; 44:1693-1700. [PMID: 29936874 DOI: 10.1080/03639045.2018.1492606] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The aim of this study was to further investigate the effect of drug loading, drug entrapment efficiency, the drug release profiles and biopharmaceutical point of views of amphotericin B (AmB) lipid formulations, that is, degree of aggregation by UV-spectroscopy, in vitro hemolytic and antifungal activities. The optimum drug loading was 2.5% by weight corresponded to lipid fraction in formulation. Increasing of the drug entrapment was achieved by blending small amount of phospholipid in solid lipid nanoparticle (SLN) dispersions. All AmB lipid dispersions were less aggregated species and hemolytic response than Fungizone® indicating that lipid nanoparticles could reduce its toxicity. The sustained release profiles of AmB formulations depended on its aggregated form and entrapment efficiency. Too high AmB loaded (5% w/w) showed a biphasic drug release profile probably due to some amounts of drug deposited on the nanosphere surface including in continuous phase which promptly released. For in vitro antifungal testing, all AmB lipid formulations were equal and more effective than both AmB itself and Fungizone®. These observations suggested that AmB loaded SLNs, nanostructured lipid carriers and modified SLNs by blending lecithin could enhance AmB solubility, prolong release characteristics, reduce toxicity and improve antifungal activity.
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Affiliation(s)
- Phatsawee Jansook
- a Faculty of Pharmaceutical Sciences , Chulalongkorn University , Bangkok, Thailand
| | - Wiwat Pichayakorn
- b Faculty of Pharmaceutical Sciences , Prince of Songkla University , Songkhla, Hat-Yai, Songkhla , Thailand
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Design, development and evaluation of mannosylated oral Amphotericin B nanoparticles for anti-leishmanial therapy: Oral kinetics and macrophage uptake studies. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2017.10.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Zheng CX, Zhao Y, Liu Y. Recent Advances in Self-assembled Nano-therapeutics. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-018-2078-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Sunoqrot S, Alsadi A, Tarawneh O, Hamed R. Polymer type and molecular weight dictate the encapsulation efficiency and release of Quercetin from polymeric micelles. Colloid Polym Sci 2017. [DOI: 10.1007/s00396-017-4183-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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8
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Raycraft BM, MacDonald JP, McIntosh JT, Shaver MP, Gillies ER. Post-polymerization functionalization of poly(ethylene oxide)–poly(β-6-heptenolactone) diblock copolymers to tune properties and self-assembly. Polym Chem 2017. [DOI: 10.1039/c6py01785a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Copolymers were synthesized and functionalized with a variety of moieties to tune self-assembly and install drugs or fluorescent dyes.
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Affiliation(s)
- Brooke M. Raycraft
- Department of Chemistry and Center for Advanced Materials and Biomaterials Research (CAMBR)
- The University of Western Ontario
- London
- Canada N6A 5B7
| | - Jarret P. MacDonald
- Department of Chemistry and Center for Advanced Materials and Biomaterials Research (CAMBR)
- The University of Western Ontario
- London
- Canada N6A 5B7
- School of Chemistry
| | - James T. McIntosh
- Department of Chemistry and Center for Advanced Materials and Biomaterials Research (CAMBR)
- The University of Western Ontario
- London
- Canada N6A 5B7
| | | | - Elizabeth R. Gillies
- Department of Chemistry and Center for Advanced Materials and Biomaterials Research (CAMBR)
- The University of Western Ontario
- London
- Canada N6A 5B7
- Department of Chemical and Biochemical Engineering
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9
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Gou J, Feng S, Xu H, Fang G, Chao Y, Zhang Y, Xu H, Tang X. Decreased Core Crystallinity Facilitated Drug Loading in Polymeric Micelles without Affecting Their Biological Performances. Biomacromolecules 2015; 16:2920-9. [DOI: 10.1021/acs.biomac.5b00826] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Jingxin Gou
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua
Road, Shenyang 110016, China
| | - Shuangshuang Feng
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua
Road, Shenyang 110016, China
| | - Helin Xu
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua
Road, Shenyang 110016, China
| | - Guihua Fang
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua
Road, Shenyang 110016, China
| | - Yanhui Chao
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua
Road, Shenyang 110016, China
| | - Yu Zhang
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua
Road, Shenyang 110016, China
| | - Hui Xu
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua
Road, Shenyang 110016, China
| | - Xing Tang
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua
Road, Shenyang 110016, China
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10
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Recent approaches for reducing hemolytic activity of chemotherapeutic agents. J Control Release 2015; 211:10-21. [DOI: 10.1016/j.jconrel.2015.06.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 05/31/2015] [Accepted: 06/01/2015] [Indexed: 01/12/2023]
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11
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Zia Q, Khan AA, Swaleha Z, Owais M. Self-assembled amphotericin B-loaded polyglutamic acid nanoparticles: preparation, characterization and in vitro potential against Candida albicans. Int J Nanomedicine 2015; 10:1769-90. [PMID: 25784804 PMCID: PMC4356689 DOI: 10.2147/ijn.s63155] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
In the present study, we developed a self-assembled biodegradable polyglutamic acid (PGA)-based formulation of amphotericin B (AmB) and evaluated its in vitro antifungal potential against Candida albicans. The AmB-loaded PGA nanoparticles were prepared in-house and had a mean size dimension of around 98±2 nm with a zeta potential of -35.2±7.3 mV. Spectroscopic studies revealed that the drug predominantly acquires an aggregated form inside the formulation with an aggregation ratio above 2. The PGA-based AmB formulation was shown to be highly stable in phosphate-buffered saline as well as in serum (only 10%-20% of the drug was released after 10 days). The AmB-PGA nanoparticles were less toxic to red blood cells (<15% lysis at an AmB concentration of 100 μg/mL after 24 hours) when compared with Fungizone(®), a commercial antifungal product. An MTT assay showed that the viability of mammalian cells (KB and RAW 264.7) was negligibly affected at AmB concentrations as high as 200 μg/mL. Histopathological examination of mouse kidney revealed no signs of tissue necrosis. The AmB-PGA formulation showed potent antimicrobial activity similar to that of Fungizone against C. albicans. Interestingly, AmB-bearing PGA nanoparticles were found to inhibit biofilm formation to a considerable extent. In summary, AmB-PGA nanoparticles showed highly attenuated toxicity when compared with Fungizone, while retaining equivalent active antifungal properties. This study indicates that the AmB-PGA preparation could be a promising treatment for various fungal infections.
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Affiliation(s)
- Qamar Zia
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Aijaz Ahmed Khan
- Department of Anatomy, Aligarh Muslim University, Aligarh, India
| | - Zubair Swaleha
- Women's College, Aligarh Muslim University, Aligarh, India
| | - Mohammad Owais
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
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13
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Du Z, Zhang Y, Xu H, Lang M. Functionalized Pluronic-b-poly(ε-caprolactone) based nanocarriers of paclitaxel: solubilization, antiproliferative efficacy and in vivo pharmaceutic kinetics. J Mater Chem B 2015; 3:3685-3694. [DOI: 10.1039/c5tb00196j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel paclitaxel (PTX) nanocarriers were developed based on the Pluronic-based pentablock copolymer and their pharmaceutical behaviours were thoroughly evaluated.
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Affiliation(s)
- Zhengzhen Du
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Yan Zhang
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Heng Xu
- Anhui Collaborative Innovation Center for Petrochemical New Materials
- School of Chemistry and Chemical Engineering
- Anqing Normal University
- Anqing 246011
- P. R. China
| | - Meidong Lang
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
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14
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Rainbolt EA, Washington KE, Biewer MC, Stefan MC. Recent developments in micellar drug carriers featuring substituted poly(ε-caprolactone)s. Polym Chem 2015. [DOI: 10.1039/c4py01628a] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthetic modification of caprolactone monomers and polymers provides a route to self-assembling block copolymers for use in drug carrier applications.
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Affiliation(s)
| | | | - Michael C. Biewer
- Department of Chemistry
- University of Texas at Dallas
- Richardson TX
- USA
| | - Mihaela C. Stefan
- Department of Chemistry
- University of Texas at Dallas
- Richardson TX
- USA
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15
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Rodrigues CD, Khalil NM, Mainardes RM. Determination of amphotericin B in PLA-PEG blend nanoparticles by HPLC-PDA. BRAZ J PHARM SCI 2014. [DOI: 10.1590/s1984-82502014000400021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
In this work, we developed and validated an effective reversed-phase HPLC method with photodiode array (PDA) detection for the quantitative analysis of amphotericin B (AmB) in poly(lactide)-poly(ethylene glycol) (PLA-PEG) blend nanoparticles. Chromatographic runs were performed on a reverse phase C18 column using a mobile phase comprising a 9% acetic acid and acetonitrile mixture (40:60, v/v) under isocratic elution with a flow rate of 1 mL/min. AmB was detected at a wavelength of 408 nm. The validation process was performed considering the selectivity, linearity, precision, accuracy, robustness, limit of detection (LOD) and limit of quantitation (LOQ) of the method. A concentration range of 1-20 µg/mL was used to construct a linear calibration curve. The LOQ and LOD were 55 and 18 ng/mL, respectively. The mean recovery of AmB from the samples was 99.92% (relative standard deviation (RSD) = 0.34%, n=9), and the method was robust for changes in the flow rate of the mobile phase (maximum RSD=4.82%). The intra- and inter-assay coefficients of variation were less than 0.59%. The method was successfully used to determine the entrapment efficiency of AmB in PLA-PEG blend nanoparticles.
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16
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Kowalczuk A, Trzcinska R, Trzebicka B, Müller AH, Dworak A, Tsvetanov CB. Loading of polymer nanocarriers: Factors, mechanisms and applications. Prog Polym Sci 2014. [DOI: 10.1016/j.progpolymsci.2013.10.004] [Citation(s) in RCA: 135] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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17
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Les KA, Mohamed-Ahmed AHA, Balan S, Choi JW, Martin D, Yardley V, Powell K, Godwin A, Brocchini S. Poly(methacrylic acid) complexation of amphotericin B to treat neglected diseases. Polym Chem 2014. [DOI: 10.1039/c3py01051a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Zu Y, Sun W, Zhao X, Wang W, Li Y, Ge Y, Liu Y, Wang K. Preparation and characterization of amorphous amphotericin B nanoparticles for oral administration through liquid antisolvent precipitation. Eur J Pharm Sci 2013; 53:109-17. [PMID: 24345795 DOI: 10.1016/j.ejps.2013.12.005] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 11/07/2013] [Accepted: 12/08/2013] [Indexed: 11/19/2022]
Abstract
We prepared amphotericin B (AmB) nanoparticles through liquid antisolvent precipitation (LAP) and by freeze-drying to improve the solubility of AmB for oral administration. The LAP was optimized through a single-factor experiment. We determined the effects of surfactants and their concentration, the stirring time, the precipitation temperature, the stirring intensity, the drug concentration and the volume ratio of antisolvent to solvent on the mean particle size (MPS) of the AmB nanoparticles. Increased stirring intensity and precipitation time favored AmB nanoparticles with smaller MPS, but precipitation times exceeding 30 min did not further reduce the MPS. Increased Tween-80 concentration and the drug concentration decreased the MPS of the AmB nanoparticles. Increased precipitation temperature and antisolvent to solvent volume ratio initially decreased the MPS of the AmB nanoparticles, which increased thereafter. Optimum conditions produced AmB nanoparticles with an MPS of 135.1 nm. The AmB nanoparticles were characterized through scanning electron microscopy (SEM), mass spectrometry (MS), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), differential scanning calorimetry (DSC), thermal gravimetric analysis (TG), solvent residue, drug purity test, and dissolution testing. The analyses indicated that the chemical structure of AmB remained unchanged in the nanoparticles, but the structure was changed from crystalline to amorphous. The residual DMSO in the nanoparticles was 0.24% less than the standard set by the International Conference on Harmonization limit for class III solvents. The AmB nanoparticles exhibited 2.1 times faster dissolution rates and 13 times equilibrium solubility compared with the raw drug. The detection results indicate that the AmB nanoparticles potentially improved the oral absorption of AmB.
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Affiliation(s)
- Yuangang Zu
- Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Ministry of Education, Harbin 150040, Heilongjiang, China
| | - Wei Sun
- Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Ministry of Education, Harbin 150040, Heilongjiang, China
| | - Xiuhua Zhao
- Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Ministry of Education, Harbin 150040, Heilongjiang, China.
| | - Weiguo Wang
- Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Ministry of Education, Harbin 150040, Heilongjiang, China
| | - Yong Li
- Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Ministry of Education, Harbin 150040, Heilongjiang, China
| | - Yunlong Ge
- Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Ministry of Education, Harbin 150040, Heilongjiang, China
| | - Ying Liu
- Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Ministry of Education, Harbin 150040, Heilongjiang, China
| | - Kunlun Wang
- Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Ministry of Education, Harbin 150040, Heilongjiang, China
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Ma J, DU LF, Chen M, Wang HH, Xing LX, Jing LF, Li YH. Drug-loaded nano-microcapsules delivery system mediated by ultrasound-targeted microbubble destruction: A promising therapy method. Biomed Rep 2013; 1:506-510. [PMID: 24648976 DOI: 10.3892/br.2013.110] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Accepted: 04/15/2013] [Indexed: 11/06/2022] Open
Abstract
The nano-microcapsules drug delivery system is currently a promising method for the treatment of many types of diseases, particularly tumors. However, the drug delivery efficiency does not reach a satisfactory level to meet treatment demands. Therefore, the effectiveness of delivery needs to be improved. Based on the alterations in the structure and modification of nano-microcapsules, ultrasound-targeted microbubble destruction (UTMD), a safe physical targeted method, may increase tissue penetration and cell membrane permeability, aiding the drug-loaded nano-microcapsules ingress the interior of targeted tissues and cells. The effectiveness and exact mechanism of action of the drug-loaded nano-microcapsules delivery system mediated by UTMD have yet to be fully elucidated. In this study, the latest advancement in UTMD-mediated drug loaded nano-microcapsules system technology was reviewed and the hindrances of UTMD-mediated drug delivery were assessed, in combination with a prospective study. The findings suggested that the drug delivery efficiency of nano-microcapsules mediated by UTMD was distinctly improved. Thus, the UTMD-mediated drug-loaded nano-microcapsules delivery system may significantly improve the efficiency of drug delivery, which may be a promising new therapeutic method.
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Affiliation(s)
- Jing Ma
- Department of Ultrasound, Shanghai First People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200080; ; Department of Cardiovascular Ultrasound, Shanghai East Hospital Affiliated to Tongji University, Shanghai 200120, P.R. China
| | - Lian Fang DU
- Department of Ultrasound, Shanghai First People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200080
| | - Ming Chen
- Department of Cardiovascular Ultrasound, Shanghai East Hospital Affiliated to Tongji University, Shanghai 200120, P.R. China
| | - Hang Hui Wang
- Department of Ultrasound, Shanghai First People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200080
| | - Ling Xi Xing
- Department of Ultrasound, Shanghai First People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200080
| | - Li Fang Jing
- Department of Ultrasound, Shanghai First People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200080
| | - Yun Hua Li
- Department of Ultrasound, Shanghai First People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200080
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Mohamed-Ahmed AHA, Les KA, Seifert K, Croft SL, Brocchini S. Noncovalent complexation of amphotericin-B with Poly(α-glutamic acid). Mol Pharm 2013; 10:940-50. [PMID: 23234235 DOI: 10.1021/mp300339p] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A noncovalent complex of amphotericin B (AmB) and poly(α-glutamic acid) (PGA) was prepared to develop a safe and stable formulation for the treatment of leishmaniasis. The loading of AmB in the complex was in the range of ∼20-50%. AmB was in a highly aggregated state with an aggregation ratio often above 2.0. This complex (AmB-PGA) was shown to be stable and to have reduced toxicity to human red blood cells and KB cells compared to the parent compound; cell viability was not affected at an AmB concentration as high as 50 and 200 μg/mL respectively. This AmB-PGA complex retained AmB activity against intracellular Leishmania major amastigotes in the differentiated THP-1 cells with an EC50 of 0.07 ± 0.03-0.08 ± 0.01 μg/mL, which is similar to Fungizone (EC50 of 0.06 ± 0.01 μg/mL). The in vitro antileishmanial activity of the complex against Leishmania donovani was retained after storage at 37 °C for 7 days in the form of a solution (EC50 of 0.27 ± 0.03 to 0.35 ± 0.04 μg/mL) and for 30 days as a solid (EC50 of 0.41 ± 0.07 to 0.63 ± 0.25 μg/mL). These encouraging results indicate that the AmB-PGA complex has the potential for further development.
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Affiliation(s)
- Abeer H A Mohamed-Ahmed
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, U.K
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Advanced materials and processing for drug delivery: the past and the future. Adv Drug Deliv Rev 2013; 65:104-20. [PMID: 23088863 DOI: 10.1016/j.addr.2012.10.003] [Citation(s) in RCA: 597] [Impact Index Per Article: 54.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Revised: 10/09/2012] [Accepted: 10/16/2012] [Indexed: 11/21/2022]
Abstract
Design and synthesis of efficient drug delivery systems are of vital importance for medicine and healthcare. Materials innovation and nanotechnology have synergistically fueled the advancement of drug delivery. Innovation in material chemistry allows the generation of biodegradable, biocompatible, environment-responsive, and targeted delivery systems. Nanotechnology enables control over size, shape and multi-functionality of particulate drug delivery systems. In this review, we focus on the materials innovation and processing of drug delivery systems and how these advances have shaped the past and may influence the future of drug delivery.
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Sahib MN, Abdulameer SA, Darwis Y, Peh KK, Tan YTF. Solubilization of beclomethasone dipropionate in sterically stabilized phospholipid nanomicelles (SSMs): physicochemical and in vitro evaluations. DRUG DESIGN DEVELOPMENT AND THERAPY 2012; 6:29-42. [PMID: 22393583 PMCID: PMC3287410 DOI: 10.2147/dddt.s28265] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Background The local treatment of lung disorders such as asthma and chronic obstructive pulmonary disease via pulmonary drug delivery offers many advantages over oral or intravenous routes of administration. This is because direct deposition of a drug at the diseased site increases local drug concentrations, which improves the pulmonary receptor occupancy and reduces the overall dose required, therefore reducing the side effects that result from high drug doses. From a clinical point of view, although jet nebulizers have been used for aerosol delivery of water-soluble compounds and micronized suspensions, their use with hydrophobic drugs has been inadequate. Aim: To evaluate the feasibility of sterically stabilized phospholipid nanomicelles (SSMs) loaded with beclomethasone dipropionate (BDP) as a carrier for pulmonary delivery. Methods 1,2-Distearoyl-sn-glycero-3-phosphoethanolamine-N-methoxy-poly(ethylene glycol 5000) polymeric micelles containing BDP (BDP-SSMs) were prepared by the coprecipitation and reconstitution method, and the physicochemical and in vitro characteristics of BDP-SSMs were investigated. Results BDP-SSMs were successfully prepared with a content uniformity and reproducibility suitable for pulmonary administration. The maximum solubility of BDP in SSMs was approximately 1300 times its actual solubility. The particle size and zeta potential of BDP-SSMs were 19.89 ± 0.67 nm and −28.03 ± 2.05 mV, respectively. The SSMs system slowed down the release of BDP and all of the aerodynamic values of the aerosolized rehydrated BDP-SSMs were not only acceptable but indicated a significant level of deposition in the lungs. Conclusion The SSM system might be an effective way of improving the therapeutic index of nebulized, poorly soluble corticosteroids.
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Affiliation(s)
- Mohanad Naji Sahib
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia.
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Sahib MN, Darwis Y, Peh KK, Abdulameer SA, Fung Tan YT. Incorporation of Beclomethasone Dipropionate into Polyethylene Glycol-Diacyl Lipid Micelles as a Pulmonary Delivery System. Drug Dev Res 2012. [DOI: 10.1002/ddr.21000] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Mohanad Naji Sahib
- School of Pharmaceutical Sciences; Universiti Sains Malaysia; Penang; Malaysia
| | - Yusrida Darwis
- School of Pharmaceutical Sciences; Universiti Sains Malaysia; Penang; Malaysia
| | - Kok Khiang Peh
- School of Pharmaceutical Sciences; Universiti Sains Malaysia; Penang; Malaysia
| | | | - Yvonne Tze Fung Tan
- School of Pharmaceutical Sciences; Universiti Sains Malaysia; Penang; Malaysia
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Sahib MN, Darwis Y, Peh KK, Abdulameer SA, Tan YTF. Rehydrated sterically stabilized phospholipid nanomicelles of budesonide for nebulization: physicochemical characterization and in vitro, in vivo evaluations. Int J Nanomedicine 2011; 6:2351-66. [PMID: 22072872 PMCID: PMC3205131 DOI: 10.2147/ijn.s25363] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Inhaled corticosteroids provide unique systems for local treatment of asthma or chronic obstructive pulmonary disease. However, the use of poorly soluble drugs for nebulization has been inadequate, and many patients rely on large doses to achieve optimal control of their disease. Theoretically, nanotechnology with a sustained-release formulation may provide a favorable therapeutic index. The aim of this study was to determine the feasibility of using sterically stabilized phospholipid nanomicelles of budesonide for pulmonary delivery via nebulization. METHODS PEG(5000)-DSPE polymeric micelles containing budesonide (BUD-SSMs) were prepared by the coprecipitation and reconstitution method, and the physicochemical and pharmacodynamic characteristics of BUD-SSMs were investigated. RESULTS The optimal concentration of solubilized budesonide at 5 mM PEG(5000)-DSPE was 605.71 ± 6.38 μg/mL, with a single-sized peak population determined by photon correlation spectroscopy and a particle size distribution of 21.51 ± 1.5 nm. The zeta potential of BUD-SSMs was -28.43 ± 1.98 mV. The percent entrapment efficiency, percent yield, and percent drug loading of the lyophilized formulations were 100.13% ± 1.09%, 97.98% ± 1.95%, and 2.01% ± 0.02%, respectively. Budesonide was found to be amorphous by differential scanning calorimetry, and had no chemical interaction with PEGylated polymer according to Fourier transform infrared spectroscopy. Transmission electron microscopic images of BUD-SSMs revealed spherical nanoparticles. BUD-SSMs exhibited prolonged dissolution behavior compared with Pulmicort Respules (P < 0.05). Aerodynamic characteristics indicated significantly higher deposition in the lungs compared with Pulmicort Respules. The mass median aerodynamic, geometric standard deviation, percent emitted dose, and the fine particle fraction were 2.83 ± 0.08 μm, 2.33 ± 0.04 μm, 59.13% ± 0.19%, and 52.31% ± 0.25%, respectively. Intratracheal administration of BUD-SSMs 23 hours before challenge (1 mg/kg) in an asthmatic/chronic obstructive pulmonary disease rat model led to a significant reduction in inflammatory cell counts (76.94 ± 5.11) in bronchoalveolar lavage fluid compared with administration of Pulmicort Respules (25.06 ± 6.91). CONCLUSION The BUD-SSMs system might be advantageous for asthma or chronic obstructive pulmonary disease and other inflammatory airway diseases.
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Affiliation(s)
- Mohanad Naji Sahib
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, Malaysia.
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Yan J, Ye Z, Chen M, Liu Z, Xiao Y, Zhang Y, Zhou Y, Tan W, Lang M. Fine tuning micellar core-forming block of poly(ethylene glycol)-block-poly(ε-caprolactone) amphiphilic copolymers based on chemical modification for the solubilization and delivery of doxorubicin. Biomacromolecules 2011; 12:2562-72. [PMID: 21598958 DOI: 10.1021/bm200375x] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This study aimed to optimize poly(ethylene glycol)-b-poly(ε-caprolactone) (PEG-b-PCL)-based amphiphilic block copolymers for achieving a better micellar drug delivery system (DDS) with improved solubilization and delivery of doxorubicin (DOX). First, the Flory-Huggins interaction parameters between DOX and the core-forming segments [i.e., poly(ε-caprolactone) (PCL) and poly[(ε-caprolactone-co-γ-(carbamic acid benzyl ester)-ε-caprolactone] (P(CL-co-CABCL))] was calculated to assess the drug-polymer compatibility. The results indicated a better compatibility between DOX and P(CL-co-CABCL) than that between DOX and PCL, motivating the synthesis of monomethoxy-poly(ethylene glycol)-b-poly[(ε-caprolactone-co-γ-(carbamic acid benzyl ester)-ε-caprolactone] (mPEG-b-P(CL-co-CABCL)) block copolymer. Second, two novel block copolymers of mPEG-b-P(CL-co-CABCL) with different compositions were prepared via ring-opening polymerization of CL and CABCL using mPEG as a macroinitiator and characterized by (1)H NMR, FT-IR, GPC, WAXD, and DSC techniques. It was found that the introduction of CABCL decreased the crystallinity of mPEG-b-PCL copolymer. Micellar formation of the copolymers in aqueous solution was investigated with fluorescence spectroscopy, DLS and TEM. mPEG-b-P(CL-co-CABCL) copolymers had a lower critical micelle concentration (CMC) than mPEG-b-PCL and subsequently led to an improved stability of prepared micelles. Furthermore, both higher loading capacity and slower in vitro release of DOX were observed for micelles of copolymers with increased content of CABCL, attributed to both improved drug-core compatibility and favorable amorphous core structure. Meanwhile, DOX-loaded micelles facilitated better uptake of DOX by HepG2 cells and were mainly retained in the cytosol, whereas free DOX accumulated more in the nuclei. However, possibly because of the slower intracellular release of DOX, DOX-loaded micelles were less potent in inhibiting cell proliferation than free DOX in vitro. Taken together, the introduction of CABCL in the core-forming block of mPEG-b-PCL resulted in micelles with superior properties, which hold great promise for drug delivery applications.
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Affiliation(s)
- Jinliang Yan
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
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Xiong XB, Falamarzian A, Garg SM, Lavasanifar A. Engineering of amphiphilic block copolymers for polymeric micellar drug and gene delivery. J Control Release 2011; 155:248-61. [PMID: 21621570 DOI: 10.1016/j.jconrel.2011.04.028] [Citation(s) in RCA: 178] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Accepted: 04/27/2011] [Indexed: 12/22/2022]
Abstract
The use of nano-delivery systems formed through assembly of synthetic amphiphilic block copolymers (ABCs) in experimental medicine and pharmaceutical sciences is experiencing rapid development. This rapid development is driven by a crucial need in improving the performance of existing therapeutic agents, as well as the necessity for the development of advanced delivery systems for complex new entities such as genes, proteins and other cellular components. The flexibility in the construction of appropriate carriers for the delivery requirements of these complex new "drugs" offered by versatile polymer chemistry provides an undeniable advantage for polymer based nano-delivery systems compared to other colloids in this regard. With seven formulations already in different stages of clinical trials, polymeric micelles are in the front line of drug development among different ABC-based nano-carriers. The success in rapid advancement of polymeric micelles from bench to bedside is owed to the rational engineering of core/shell structure so that the polymeric micellar carrier can meet the requirements for optimum delivery of specific drug(s) in certain disease condition(s). The engineering efforts in this regard have mostly been aimed at providing efficient drug loading, micellar stabilization, and sustained and/or site specific drug release. The objective of this review is to provide an update on different engineering strategies employed to achieve optimum polymeric micellar formulations.
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Affiliation(s)
- Xiao-Bing Xiong
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta T6G 2N8, Canada
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Garg SM, Xiong XB, Lu C, Lavasanifar A. Application of Click Chemistry in the Preparation of Poly(ethylene oxide)-block-poly(ε-caprolactone) with Hydrolyzable Cross-Links in the Micellar Core. Macromolecules 2011. [DOI: 10.1021/ma102548m] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Shyam M Garg
- Faculty of Pharmacy and Pharmaceutical Sciences and ‡Faculty of Chemical and Material Engineering, University of Alberta, Edmonton, Alberta, Canada
| | - Xiao-Bing Xiong
- Faculty of Pharmacy and Pharmaceutical Sciences and ‡Faculty of Chemical and Material Engineering, University of Alberta, Edmonton, Alberta, Canada
| | - Changhai Lu
- Faculty of Pharmacy and Pharmaceutical Sciences and ‡Faculty of Chemical and Material Engineering, University of Alberta, Edmonton, Alberta, Canada
| | - Afsaneh Lavasanifar
- Faculty of Pharmacy and Pharmaceutical Sciences and ‡Faculty of Chemical and Material Engineering, University of Alberta, Edmonton, Alberta, Canada
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Yan J, Ye Z, Luo H, Chen M, Zhou Y, Tan W, Xiao Y, Zhang Y, Lang M. Synthesis, characterization, fluorescence labeling and cellular internalization of novel amine-functionalized poly(ethylene glycol)-block-poly(ε-caprolactone) amphiphilic block copolymers. Polym Chem 2011. [DOI: 10.1039/c0py00391c] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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