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Mallory DP, Freedman A, Kaliszewski MJ, Montenegro-Galindo GR, Pugh C, Smith AW. Direct Quantification of Serum Protein Interactions with PEGylated Micelle Nanocarriers. Biomacromolecules 2023. [PMID: 37224421 DOI: 10.1021/acs.biomac.2c01538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A large repertoire of nanocarrier (NC) technologies exists, each with highly specified advantages in terms of targetability, stability, and immunological inertness. The characterization of such NC properties within physiological conditions is essential for the development of optimized drug delivery systems. One method that is well established for reducing premature elimination by avoiding protein adsorption on NCs is surface functionalization with poly(ethylene glycol) (PEG), aptly called PEGylation. However, recent studies revealed that some PEGylated NCs have a delayed immune response, indicating the occurrence of protein-NC interactions. Obvious protein-NC interactions, especially in micellar systems, may have been overlooked as many early studies relied on techniques less sensitive to molecular level interactions. More sensitive techniques have been developed, but a major challenge is the direct measurement of interactions, which must be done in situ, as micelle assemblies are dynamic. Here, we report the use of pulsed-interleaved excitation fluorescence cross-correlation spectroscopy (PIE-FCCS) to interrogate the interactions between two PEG-based micelle models and serum albumin protein to compare protein adsorption differences based on linear or cyclic PEG architectures. First, by measuring micelle diffusion in isolated and mixed solutions, we confirmed the thermal stability of diblock and triblock copolymer micelle assemblies. Further, we measured the co-diffusion of micelles and serum proteins, the magnitudes of which increased with concentration and continued incubation. The results demonstrate that PIE-FCCS is capable of measuring direct interactions between fluorescently labeled NC and serum proteins, even at concentrations 500 times lower than those observed physiologically. This capability showcases the potential utility of PIE-FCCS in the characterization of drug delivery systems in biomimetic conditions.
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Affiliation(s)
- D Paul Mallory
- Department of Chemistry, University of Akron, Akron, Ohio 44325, United States
| | - Abegel Freedman
- School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325, United States
- Department of Chemistry and Biochemistry, Wichita State University, Wichita, Kansas 67260, United States
| | - Megan J Kaliszewski
- Department of Chemistry, University of Akron, Akron, Ohio 44325, United States
| | | | - Coleen Pugh
- School of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325, United States
- Department of Chemistry and Biochemistry, Wichita State University, Wichita, Kansas 67260, United States
| | - Adam W Smith
- Department of Chemistry, University of Akron, Akron, Ohio 44325, United States
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79410, United States
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2
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Yu YM, Bu FZ, Yu Y, Yan CW, Wu ZY, Li YT. 5-fluorouracil-caffeic acid cocrystal delivery agent with long-term and synergistic high-performance antitumor effects. Nanomedicine (Lond) 2023; 17:2215-2229. [PMID: 36927097 DOI: 10.2217/nnm-2022-0208] [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] [Indexed: 03/18/2023] Open
Abstract
Aim: To explore how to transform cocrystals of the anticancer drug 5-fluorouracil (FL) with caffeic acid (CF; FL-CF-2H2O) into a nanoformulation, a self-assembly strategy of cocrystal-loaded micelles is proposed. Methods: Nanomicelles were assembled to deliver cocrystal FL-CF-2H2O with synergistic activity, and their in vitro/vivo properties were evaluated by combining theoretical and experimental methods. Result: More cocrystal was packed into the polymers due to the stronger interaction energy during micellar assembly, producing excellent cytotoxicity and pharmacokinetic behavior, especially synergistic abilities and long-term therapy. Conclusion: This case exemplifies the particular benefits of the self-assembly strategy of cocrystal-loaded micelles in keeping a delicate balance between long-term effects and high efficiency for FL, and offers a feasible technical scheme for cocrystal delivery agents for antitumor drugs.
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Affiliation(s)
- Yue-Ming Yu
- School of Medicine & Pharmacy & College of Marine Life Science, Ocean University of China, Qingdao, Shandong, 266003, China.,Laboratory for Marine Drugs & Bioproducts, Qingdao National Laboratory for Marine Science & Technology, Shandong, 266003, China
| | - Fan-Zhi Bu
- School of Medicine & Pharmacy & College of Marine Life Science, Ocean University of China, Qingdao, Shandong, 266003, China
| | - Yu Yu
- Qingdao Institute for Food & Drug Control, Qingdao, Shandong, 266071, China
| | - Cui-Wei Yan
- School of Medicine & Pharmacy & College of Marine Life Science, Ocean University of China, Qingdao, Shandong, 266003, China
| | - Zhi-Yong Wu
- School of Medicine & Pharmacy & College of Marine Life Science, Ocean University of China, Qingdao, Shandong, 266003, China.,Laboratory for Marine Drugs & Bioproducts, Qingdao National Laboratory for Marine Science & Technology, Shandong, 266003, China
| | - Yan-Tuan Li
- School of Medicine & Pharmacy & College of Marine Life Science, Ocean University of China, Qingdao, Shandong, 266003, China.,Laboratory for Marine Drugs & Bioproducts, Qingdao National Laboratory for Marine Science & Technology, Shandong, 266003, China
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3
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Faisal KS, Clulow AJ, MacWilliams SV, Gillam TA, Austin A, Krasowska M, Blencowe A. Microstructure-Thermal Property Relationships of Poly (Ethylene Glycol- b-Caprolactone) Copolymers and Their Micelles. Polymers (Basel) 2022; 14:polym14204365. [PMID: 36297943 PMCID: PMC9607102 DOI: 10.3390/polym14204365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 03/10/2023] Open
Abstract
The crystallinity of polymers strongly affects their properties. For block copolymers, whereby two crystallisable blocks are covalently tethered to one another, the molecular weight of the individual blocks and their relative weight fraction are important structural parameters that control their crystallisation. In the case of block copolymer micelles, these parameters can influence the crystallinity of the core, which has implications for drug encapsulation and release. Therefore, in this study, we aimed to determine how the microstructure of poly(ethylene glycol-b-caprolactone) (PEG-b-PCL) copolymers contributes to the crystallinity of their hydrophobic PCL micelle cores. Using a library of PEG-b-PCL copolymers with PEG number-average molecular weight (Mn) values of 2, 5, and 10 kDa and weight fractions of PCL (fPCL) ranging from 0.11 to 0.67, the thermal behaviour and morphology were studied in blends, bulk, and micelles using differential scanning calorimetry (DSC), wide-angle X-ray diffraction (WXRD), and Synchrotron wide-angle X-ray scattering (WAXS). Compared to PEG and PCL homopolymers, the block copolymers displayed reduced crystallinity in the bulk phase and the individual blocks had a large influence on the crystallisation of one another. The fPCL was determined to be the dominant contributor to the extent and order of crystallisation of the two blocks. When fPCL < 0.35, the initial crystallisation of PEG led to an amorphous PCL phase. At fPCL values between 0.35 and 0.65, PEG crystallisation was followed by PCL crystallisation, whereas this behaviour was reversed when fPCL > 0.65. For lyophilised PEG-b-PCL micelles, the crystallinity of the core increased with increasing fPCL, although the core was predominately amorphous for micelles with fPCL < 0.35. These findings contribute to understanding the relationships between copolymer microstructure and micelle core crystallinity that are important for the design and performance of micellar drug delivery systems, and the broader application of polymer micelles.
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Affiliation(s)
- Khandokar Sadique Faisal
- Applied Chemistry and Translational Biomaterials (ACTB) Group, Centre for Pharmaceutical Innovation (CPI), UniSA Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Andrew J. Clulow
- BioSAXS Beamline, Australian Synchrotron, Australian Nuclear Science and Technology Organisation (ANSTO), Clayton, VIC 3168, Australia
- Drug Delivery, Disposition & Dynamics, Monash Institute of Pharmaceutical Sciences, Parkville, VIC 3052, Australia
| | - Stephanie V. MacWilliams
- Surface Interactions and Soft Matter (SISM) Group, Future Industries Institute, UniSA STEM, University of South Australia, Mawson Lakes, SA 5095, Australia
| | - Todd A. Gillam
- Applied Chemistry and Translational Biomaterials (ACTB) Group, Centre for Pharmaceutical Innovation (CPI), UniSA Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
- Surface Interactions and Soft Matter (SISM) Group, Future Industries Institute, UniSA STEM, University of South Australia, Mawson Lakes, SA 5095, Australia
| | - Ashlyn Austin
- Applied Chemistry and Translational Biomaterials (ACTB) Group, Centre for Pharmaceutical Innovation (CPI), UniSA Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Marta Krasowska
- Surface Interactions and Soft Matter (SISM) Group, Future Industries Institute, UniSA STEM, University of South Australia, Mawson Lakes, SA 5095, Australia
| | - Anton Blencowe
- Applied Chemistry and Translational Biomaterials (ACTB) Group, Centre for Pharmaceutical Innovation (CPI), UniSA Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
- Correspondence:
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4
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Sohail M, Yu B, Sun Z, Liu J, Li Y, Zhao F, Chen D, Yang X, Xu H. Complex polymeric nanomicelles co-delivering doxorubicin and dimethoxycurcumin for cancer chemotherapy. Drug Deliv 2022; 29:1523-1535. [PMID: 35611890 PMCID: PMC9135434 DOI: 10.1080/10717544.2022.2073403] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Combinational therapy is a new trend in medical sciences to achieve a maximum therapeutic response of the drugs with a comparatively low incidence of severe adverse effects. To overcome the challenges of conventional formulations for cancer chemotherapy, a polymer-based complex nanomicellar system, namely CPM-DD, was developed co-delivering the anti-cancer agent doxorubicin (DOX) and potent antioxidant dimethoxycurcumin (DiMC). The optimal mass ratio of DOX/DiMC in CPM-DD was determined as 1:6 due to the synergistic antiproliferative effect from in vitro cytotoxicity assay, while the biocompatible diblock copolymer of mPEG2000-PLA5000 was selected for drug entrapment at an optimal feeding ratio of 9:1 to both drugs together. The uniform particles of CPM-DD with suitable particle size (∼30 nm) and stable drug loading content (>9%) could be reliably obtained by self-assembly with the encapsulation yield up to 95%. Molecular dynamics simulation revealed the interaction mechanism responsible for forming these complex nanomicelles. The acid-base interaction between two drugs would significantly improve their binding with the copolymer, thus leading to good colloidal stability and controlled drug release characteristics of CPM-DD. Systematic evaluation based on the MCF-7 breast tumor-bearing nude mice model further demonstrated the characteristics of tissue biodistribution of both drugs delivered by CPM-DD, which were closely related to the drug loading pattern and greatly responsible for the improved anti-cancer potency and attenuated toxicity of this complex formulation. Therefore, all the findings indicated that CPM-DD would be a good alternative to the conventional formulations of DOX and worthy of clinical application for cancer chemotherapy.
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Affiliation(s)
- Muhammad Sohail
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs, Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University, Yantai, China
| | - Bin Yu
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs, Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University, Yantai, China
| | - Zheng Sun
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs, Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University, Yantai, China
| | - Jiali Liu
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs, Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University, Yantai, China
| | - Yanli Li
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs, Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University, Yantai, China
| | - Feng Zhao
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs, Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University, Yantai, China
| | - Daquan Chen
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs, Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University, Yantai, China
| | - Xin Yang
- School of Chemistry and Chemical Engineering, Yantai University, Yantai, China
| | - Hui Xu
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs, Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University, Yantai, China
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5
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Poddar D, Singh A, Bansal S, Thakur S, Jain P. Direct synthesis of Poly(Ԑ-Caprolactone)-block-poly (glycidyl methacrylate) copolymer and its usage as a potential nano micelles carrier for hydrophobic drugs. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Ge Z, Wang Q, Zhu Q, Yusif M, Yu J, Xu X. Improved oral bioavailability, cellular uptake, and cytotoxic activity of zingerone via nano-micelles drug delivery system. J Microencapsul 2021; 38:394-404. [PMID: 34278929 DOI: 10.1080/02652048.2021.1957036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Herein, a nano-micelle drug delivery system was developed to orally improved zingerone's bioavailability and its antitumor effect. Indeed, zingerone-loaded d-α-tocopheryl polyethylene glycol succinate micelles (ZTMs) were effectively prepared, characterised and assessed. The ZTMs had diameter, polydispersity index, and zeta potential of 50.62 ± 0.25 nm, 0.168 ± 0.006, and -28.07 ± 0.33 mV, respectively, coupled with a high entrapment efficiency (m/m, %) were 94.71 ± 2.02. The release rate of ZTMs in three media was significantly greater than that of free zingerone. Intriguingly, results obtained from pharmacokinetic studies showed that the oral bioavailability of the ZTMs was enhanced by 5.10 times in comparison with the free zingerone. Further, the half inhibitory concentration (IC50) of ZTMs and free zingerone was 7.56 μg/ml and 14.30 μg/ml, respectively, on HepG2 cells. Hence, ZTMs may be used as a potential approach to enrich the solubility, bioavailability, and concomitant anti-proliferative effect of zingerone in vitro.
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Affiliation(s)
- Zhumei Ge
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
| | - Qilong Wang
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
| | - Qin Zhu
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
| | - Mukhtar Yusif
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
| | - Jiangnan Yu
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
| | - Ximing Xu
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, People's Republic of China
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7
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Multifunctional polymeric micellar nanomedicine in the diagnosis and treatment of cancer. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 126:112186. [PMID: 34082985 DOI: 10.1016/j.msec.2021.112186] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 05/08/2021] [Accepted: 05/11/2021] [Indexed: 02/07/2023]
Abstract
Polymeric micelles are a prevalent topic of research for the past decade, especially concerning their fitting ability to deliver drug and diagnostic agents. This delivery system offers outstanding advantages, such as biocompatibility, high loading efficiency, water-solubility, and good stability in biological fluids, to name a few. The multifunctional polymeric micellar architect offers the added capability to adapt its surface to meet the looked-for clinical needs. This review cross-talks the recent reports, proof-of-concept studies, patents, and clinical trials that utilize polymeric micellar family architectures concerning cancer targeted delivery of anticancer drugs, gene therapeutics, and diagnostic agents. The manuscript also expounds on the underlying opportunities, allied challenges, and ways to resolve their bench-to-bedside translation for allied clinical applications.
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8
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Zong L, Wang H, Hou X, Fu L, Wang P, Xu H, Yu W, Dai Y, Qiao Y, Wang X, Yuan Q, Pang X, Han G, Pu X. A novel GSH-triggered polymeric nanomicelles for reversing MDR and enhancing antitumor efficiency of hydroxycamptothecin. Int J Pharm 2021; 600:120528. [PMID: 33781880 DOI: 10.1016/j.ijpharm.2021.120528] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/22/2021] [Accepted: 03/21/2021] [Indexed: 12/15/2022]
Abstract
Tumor multidrug resistance (MDR) is one of the main reasons for the failure of clinical chemotherapy. Here, a bio-responsive anti-drug-resistant polymer micelle that can respond to the reductive GSH in the tumor microenvironment (TME) for delivery of HCPT was designed. A new type of polymer with anti-drug resistance and anti-tumor effect was synthesized and used to encapsulated HCPT to form reduction-sensitive micelles (PDSAH) by a thin-film dispersion method. It is demonstrated that the micelle formulation improves the anti-tumor activity and biosafety of HCPT, and also plays a significant role in reversing the drug resistance, which contributes to inhibiting the tumor growth and prolonging the survival time of H22 tumor-bearing mice. The results indicate that this nanoplatform can serve as a flexible and powerful system for delivery of other drugs that are tolerated by tumors or bacteria.
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Affiliation(s)
- Lanlan Zong
- Institute of Pharmacy, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng, Henan 475004, China
| | - Haiyan Wang
- Institute of Pharmacy, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng, Henan 475004, China
| | - Xianqiao Hou
- Institute of Pharmacy, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng, Henan 475004, China
| | - Like Fu
- Institute of Pharmacy, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng, Henan 475004, China
| | - Peirong Wang
- Institute of Pharmacy, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng, Henan 475004, China
| | - Hongliang Xu
- Institute of Pharmacy, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng, Henan 475004, China
| | - Wenjie Yu
- Institute of Pharmacy, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng, Henan 475004, China
| | - Yuxin Dai
- Institute of Pharmacy, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng, Henan 475004, China
| | - Yonghui Qiao
- Henan University of Chinese Medicine, Zhengzhou, Henan 450046, China
| | - Xuefeng Wang
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong 510632, China
| | - Qi Yuan
- Institute of Pharmacy, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng, Henan 475004, China
| | - Xiaobin Pang
- Institute of Pharmacy, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng, Henan 475004, China.
| | - Guang Han
- Institute of Pharmacy, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng, Henan 475004, China.
| | - Xiaohui Pu
- Institute of Pharmacy, School of Pharmacy, Henan University, N. Jinming Ave., Kaifeng, Henan 475004, China.
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Farmanbordar H, Amini-Fazl MS, Mohammadi R. pH-Sensitive silica-based core–shell nanogel prepared via RAFT polymerization: investigation of the core size effect on the release profile of doxorubicin. NEW J CHEM 2021. [DOI: 10.1039/d1nj03304b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The novelty of this work is the synthesis of a core–shell nanogel that is based on silica nanoparticles as the core with different sizes via RAFT polymerization and its application to drug delivery.
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Affiliation(s)
- Hassan Farmanbordar
- Research Laboratory of Advanced Polymer Material, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 51666, Iran
| | - Mohammad Sadegh Amini-Fazl
- Research Laboratory of Advanced Polymer Material, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 51666, Iran
| | - Reza Mohammadi
- Polymer Research Laboratory, Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
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10
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Känkänen V, Seitsonen J, Tuovinen H, Ruokolainen J, Hirvonen J, Balasubramanian V, Santos HA. Evaluation of the effects of nanoprecipitation process parameters on the size and morphology of poly(ethylene oxide)-block-polycaprolactone nanostructures. Int J Pharm 2020; 590:119900. [PMID: 32991959 DOI: 10.1016/j.ijpharm.2020.119900] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/16/2020] [Accepted: 09/17/2020] [Indexed: 11/26/2022]
Abstract
Nanoprecipitation is a straightforward method for the production of block copolymer nanoparticles for drug delivery applications. However, the effects of process parameters need to be understood to optimize and control the particle size distribution (PSD). To this end, we investigated the effects of material and process factors on PSD and morphology of nanoparticles prepared from an amphiphilic diblock copolymer, poly(ethylene oxide)-block-polycaprolactone. Using a Design of Experiments approach, we explored the joint effects of molecular weight, block length ratios, water volume fraction, stirring rate, polymer concentration and organic phase addition rate on hydrodynamic size and polydispersity index of the nanostructures and created statistical models explaining up to 94% of the variance in hydrodynamic diameter. In addition, we performed morphological characterization by cryogenic transmission electron microscopy and showed that increasing the process temperature may favor the formation of vesicles from these polymers. We showed that the effects of process parameters are dependent on the polymer configuration and we found that the most useful parameters to fine-tune the PSD are the initial polymer concentration and the stirring rate. Overall, this study provides evidence on the joint effects of material and process parameters on PSD and morphology, which will be useful for rational design of formulation-specific optimization studies, scale-up and process controls.
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Affiliation(s)
- Voitto Känkänen
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Jani Seitsonen
- Nanomicroscopy Center, Aalto University, Puumiehenkuja 2, FI-02150 Espoo, Finland
| | - Henri Tuovinen
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | - Janne Ruokolainen
- Nanomicroscopy Center, Aalto University, Puumiehenkuja 2, FI-02150 Espoo, Finland
| | - Jouni Hirvonen
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
| | | | - Hélder A Santos
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland; Helsinki Institute of Life Science (HiLIFE), University of Helsinki, FI-00014 Helsinki, Finland.
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11
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Yu W, Shevtsov M, Chen X, Gao H. Advances in aggregatable nanoparticles for tumor-targeted drug delivery. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.02.036] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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12
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Hassankhani Rad A, Asiaee F, Jafari S, Shayanfar A, Lavasanifar A, Molavi O. Poly(ethylene glycol)-poly(ε-caprolactone)-based micelles for solubilization and tumor-targeted delivery of silibinin. ACTA ACUST UNITED AC 2019; 10:87-95. [PMID: 32363152 PMCID: PMC7186544 DOI: 10.34172/bi.2020.11] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 10/07/2019] [Accepted: 10/08/2019] [Indexed: 11/21/2022]
Abstract
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Introduction: Silibinin is a naturally occurring compound with known positive impacts on prevention and treatment of many types of human illnesses in general and cancer in particular. Silibinin is poorly water soluble which results in its insufficient bioavailability and lack of therapeutic efficacy in cancer. Here, we proposed to examine the potential of micelles composed of poly(ethylene glycol) (PEG) as the hydrophilic block and poly(ε-caprolactone) (PCL), poly(α-benzylcarboxylate-ε-caprolactone) (PBCL), or poly(lactide)-(PBCL) (PLA-PBCL) as hydrophobic blocks for enhancing the water solubility of silibinin and its targeted delivery to tumor.
Methods: Co-solvent evaporation method was used to incorporate silibinin into PEG-PCL based micelles. Drug release profiles were assessed using dialysis bag method. MTT assay also was used to analyze functional activity of drug delivery in B16 melanoma cells.
Results: Silibinin encapsulated micelles were shown to be less than 60 nm in size. Among different structures under study, the one with PEG-PBCL could incorporate silibinin with the highest encapsulation efficiency being 95.5%, on average. PEG-PBCL micelles could solubilize 1 mg silibinin in 1 mL water while the soluble amount of silibinin was found to be 0.092 mg/mL in the absence of polymeric micelles. PEG-PBCL micelles provided the sustained release of silibinin indicated with less than 30% release of silibinin within 24 hours. Silibinin encapsulated in PEG-PBCL micelles resulted in growth inhibitory effect in B16 cancer cells which was significantly higher than what observed with free drug.
Conclusion: Our findings showed that PEG-PBCL micellar nanocarriers can be a useful vehicle for solubilization and targeted delivery of silibinin.
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Affiliation(s)
- Ashkan Hassankhani Rad
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Faculty of Pharmacy, Tabriz University of Medical Science, Tabriz, Iran
| | - Farshid Asiaee
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Faculty of Pharmacy, Tabriz University of Medical Science, Tabriz, Iran
| | - Sevda Jafari
- Faculty of Pharmacy, Tabriz University of Medical Science, Tabriz, Iran.,Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Shayanfar
- Faculty of Pharmacy, Tabriz University of Medical Science, Tabriz, Iran
| | - Afsaneh Lavasanifar
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Ommoleila Molavi
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Faculty of Pharmacy, Tabriz University of Medical Science, Tabriz, Iran
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13
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Wei C, Wang Q, Weng W, Wei Q, Xie Y, Adu-Frimpong M, Toreniyazov E, Ji H, Xu X, Yu J. The characterisation, pharmacokinetic and tissue distribution studies of TPGS modified myricetrin mixed micelles in rats. J Microencapsul 2019; 36:278-290. [DOI: 10.1080/02652048.2019.1622606] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Chunmei Wei
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, China
| | - Qilong Wang
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, China
| | - Wen Weng
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, China
| | - Qiuyu Wei
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, China
| | - Yujiao Xie
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, China
| | - Michael Adu-Frimpong
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, China
| | - Elmurat Toreniyazov
- Jiangsu Provincial Research Center for Medicinal Function Development of New Food Resources, Zhenjiang, P.R. China
- Department of Plant Protection Breeding and Seed Science, Tashkent State Agricultural University (Nukus branch), Nukus, The Republic of Uzbekistan
| | - Hao Ji
- Jiangsu Provincial Research Center for Medicinal Function Development of New Food Resources, Zhenjiang, P.R. China
- Jiangsu Tian Sheng Pharmaceutical Co., Ltd, Zhenjiang, People’s Republic of China
| | - Ximing Xu
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, China
- Jiangsu Provincial Research Center for Medicinal Function Development of New Food Resources, Zhenjiang, P.R. China
| | - Jiangnan Yu
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang, China
- Jiangsu Provincial Research Center for Medicinal Function Development of New Food Resources, Zhenjiang, P.R. China
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Han M, Huang-Fu MY, Guo WW, Guo NN, Chen J, Liu HN, Xie ZQ, Lin MT, Wei QC, Gao JQ. MMP-2-Sensitive HA End-Conjugated Poly(amidoamine) Dendrimers via Click Reaction To Enhance Drug Penetration into Solid Tumor. ACS APPLIED MATERIALS & INTERFACES 2017; 9:42459-42470. [PMID: 29143522 DOI: 10.1021/acsami.7b10098] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Currently, the limited penetration of nanoparticles remains a major challenge for antitumor nanomedicine to penetrate into the tumor tissues. Herein, we propose a size-shrinkable drug delivery system based on a polysaccharide-modified dendrimer with tumor microenvironment responsiveness for the first time to our knowledge, which was formed by conjugating the terminal glucose of hyaluronic acid (HA) to the superficial amidogen of poly(amidoamine) (PAMAM), using a matrix metalloproteinase-2 (MMP-2)-cleavable peptide (PLGLAG) via click reaction. These nanoparticles had an initial size of ∼200 nm, but once deposited in the presence of MMP-2, they experienced a dramatic and fast size change and dissociated into their dendrimer building blocks (∼10 nm in diameter) because of cleavage of PLGLAG. This rapid size-shrinking characteristic not only promoted nanoparticle extravasation and accumulation in tumors benefited from the enhanced permeability and retention effect but also achieved faster nanoparticle diffusion and penetration. We have further conducted comparative studies of MMP-2-sensitive macromolecules (HA-pep-PAMAM) and MMP-2-insensitive macromolecules (HA-PAMAM) synthesized with a similar particle size, surface charge, and chemical composition and evaluated in both monolayer cells and multicellular spheroids. The results confirmed that the enzyme-responsive size shrink is an implementable strategy to enhance drug penetration and to improve therapeutic efficacy. Meanwhile, macromolecule-based nanoparticles with size-variable characteristics not only promote drug penetration, but they can also be used as gene delivery systems, suggesting great potential as nano-delivery systems.
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Affiliation(s)
- Min Han
- College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, P. R. China
| | - Ming-Yi Huang-Fu
- College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, P. R. China
| | - Wang-Wei Guo
- College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, P. R. China
| | - Ning-Ning Guo
- College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, P. R. China
| | - JieJian Chen
- Department of Radiation Oncology, Key Laboratory of Cancer Prevention and Intervention, the Second Affiliated Hospital, College of Medicine, Zhejiang University , Hangzhou 310058, China
| | - Hui-Na Liu
- College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, P. R. China
| | - Zhi-Qi Xie
- College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, P. R. China
| | - Meng-Ting Lin
- College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, P. R. China
| | - Qi-Chun Wei
- Department of Radiation Oncology, Key Laboratory of Cancer Prevention and Intervention, the Second Affiliated Hospital, College of Medicine, Zhejiang University , Hangzhou 310058, China
| | - Jian-Qing Gao
- College of Pharmaceutical Sciences, Zhejiang University , Hangzhou 310058, P. R. China
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15
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Wang Y, Tan Y. Long circulating 10-hydroxycamptothecin-loaded nanoparticles fabricated from poly(ethylene glycol)/poly(L-lactic acid) multiblock copolymers. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2016. [DOI: 10.1080/10601325.2016.1237816] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Wang Y, Tan Y. Long circulating 10-hydroxycamptothecin-loaded nanoparticles fabricated from poly(ethylene glycol)/poly(L-lactic acid) multi-block copolymers. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2016. [DOI: 10.1080/10601325.2016.1212311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Cationic triblock copolymer micelles enhance antioxidant activity, intracellular uptake and cytotoxicity of curcumin. Int J Pharm 2015; 490:298-307. [PMID: 26026253 DOI: 10.1016/j.ijpharm.2015.05.057] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 05/20/2015] [Accepted: 05/21/2015] [Indexed: 11/21/2022]
Abstract
The aim of the present study was to develop curcumin loaded cationic polymeric micelles and to evaluate their loading, preservation of curcumin antioxidant activity and intracellular uptake ability. The micelles were prepared from a triblock copolymer consisting of poly(ϵ-caprolactone) and very short poly(2-(dimethylamino) ethyl methacrylate) segments (PDMAEMA9-PCL70-PDMAEMA9). The micelles showed monomodal size distribution, mean diameter of 145 nm, positive charge (+72 mV), critical micellar concentration around 0.05 g/l and encapsulation efficiency of 87%. The ability of the micellar curcumin to scavenge the ABTS radical and hypochlorite ions was higher than that of the free curcumin. Confocal microscopy revealed that the uptake of curcumin by chronic myeloid leukemia derived K-562 cells and human multiple myeloma cells U-266 was more intensive when curcumin was loaded into the micelles. These results correlated with the higher cytotoxicity of the micellar curcumin compared to free curcumin. Intraperitoneal treatment of Wistar rats indicated that PDMAEMA-PCL-PDMAEMA copolymer, comprising very short cationic chains, did not change the levels of malondialdehyde and glutathione in livers indicating an absence of oxidative stress. Thus, PDMAEMA-PCL-PDMAEMA triblock micelles could be considered efficient and safe platform for curcumin delivery.
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18
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Sadhukhan S, Bakshi P, Datta R, Maiti S. Poly(ethylene oxide)-g-gellan polysaccharide nanocarriers for controlled gastrointestinal delivery of simvastatin. J Appl Polym Sci 2015. [DOI: 10.1002/app.42399] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sayantan Sadhukhan
- Department of Pharmaceutics; Gupta College of Technological Sciences; Ashram More, G.T Road, Asansol-713301 West Bengal India
| | - Paromita Bakshi
- Department of Pharmaceutics; Gupta College of Technological Sciences; Ashram More, G.T Road, Asansol-713301 West Bengal India
| | - Rana Datta
- Department of Pharmaceutics; Gupta College of Technological Sciences; Ashram More, G.T Road, Asansol-713301 West Bengal India
| | - Sabyasachi Maiti
- Department of Pharmaceutics; Gupta College of Technological Sciences; Ashram More, G.T Road, Asansol-713301 West Bengal India
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20
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Sui X, Kujala P, Janssen GJ, de Jong E, Zuhorn IS, van Hest JCM. Robust formation of biodegradable polymersomes by direct hydration. Polym Chem 2015. [DOI: 10.1039/c4py01288g] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A mild, robust and fast method to form nano-sized biodegradable polymersomes is described.
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Affiliation(s)
- Xiaofeng Sui
- Institute for Molecules and Materials
- Radboud University
- Heyendaalsweg 135
- The Netherlands
| | - Pekka Kujala
- Institute for Molecules and Materials
- Radboud University
- Heyendaalsweg 135
- The Netherlands
| | - Geert-Jan Janssen
- Institute for Molecules and Materials
- Radboud University
- Heyendaalsweg 135
- The Netherlands
| | - Edwin de Jong
- Department of Cell Biology
- University Medical Center Groningen
- University of Groningen
- 9713 AV Groningen
- The Netherlands
| | - Inge S. Zuhorn
- Department of Cell Biology
- University Medical Center Groningen
- University of Groningen
- 9713 AV Groningen
- The Netherlands
| | - Jan C. M. van Hest
- Institute for Molecules and Materials
- Radboud University
- Heyendaalsweg 135
- The Netherlands
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21
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Nikfarjam N, Sabzi M, Sattari A. Preparation of pH-sensitive nanoparticles with core-shell-corona morphology as an oral drug carrier. POLYMER SCIENCE SERIES B 2014. [DOI: 10.1134/s1560090414660038] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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22
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Sereti V, Zoumpanioti M, Papadimitriou V, Pispas S, Xenakis A. Biocolloids Based on Amphiphilic Block Copolymers as a Medium for Enzyme Encapsulation. J Phys Chem B 2014; 118:9808-16. [DOI: 10.1021/jp504449y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Victoria Sereti
- Institute of Biology, Medicinal Chemistry & Biotechnology and ‡Theoretical & Physical Chemistry Institute, National Hellenic Research Foundation, 48, Vassileos Constantinou Avenue, Athens 11635, Greece
| | - Maria Zoumpanioti
- Institute of Biology, Medicinal Chemistry & Biotechnology and ‡Theoretical & Physical Chemistry Institute, National Hellenic Research Foundation, 48, Vassileos Constantinou Avenue, Athens 11635, Greece
| | - Vassiliki Papadimitriou
- Institute of Biology, Medicinal Chemistry & Biotechnology and ‡Theoretical & Physical Chemistry Institute, National Hellenic Research Foundation, 48, Vassileos Constantinou Avenue, Athens 11635, Greece
| | - Stergios Pispas
- Institute of Biology, Medicinal Chemistry & Biotechnology and ‡Theoretical & Physical Chemistry Institute, National Hellenic Research Foundation, 48, Vassileos Constantinou Avenue, Athens 11635, Greece
| | - Aristotelis Xenakis
- Institute of Biology, Medicinal Chemistry & Biotechnology and ‡Theoretical & Physical Chemistry Institute, National Hellenic Research Foundation, 48, Vassileos Constantinou Avenue, Athens 11635, Greece
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23
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Hokugo A, Saito T, Li A, Sato K, Tabata Y, Jarrahy R. Stimulation of bone regeneration following the controlled release of water-insoluble oxysterol from biodegradable hydrogel. Biomaterials 2014; 35:5565-71. [PMID: 24731715 DOI: 10.1016/j.biomaterials.2014.03.018] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 03/11/2014] [Indexed: 12/30/2022]
Abstract
Recently bone graft substitutes using bone morphogenetic proteins (BMPs) have been heralded as potential alternatives to traditional bone reconstruction procedures. BMP-based products, however, are associated with significant and potentially life-threatening side effects when used in the head and neck region and furthermore, are exorbitantly priced. Oxysterols, products of cholesterol oxidation, represent a class of molecules that are favorable alternatives or adjuncts to BMP therapy due to their low side effect profile and cost. In order to establish the optimal clinical utility of oxysterol, an optimal scaffold must be developed, one that allows the release of oxysterol in a sustained and efficient manner. In this study, we prepare a clinically applicable bone graft substitute engineered for the optimal release of oxysterol. We first solubilized oxysterol in water by making use of polymeric micelles using l-lactic acid oligomer (LAo) grafted gelatin. Then, the water-solubilized oxysterol was incorporated into a biodegradable hydrogel that was enzymatically degraded intracorporeally. In this manner, oxysterol could be released from the hydrogel in a degradation-driven manner. The water-solubilized oxysterol incorporated biodegradable hydrogel was implanted into rat calvarial defects and induced successful bone regeneration. The innovative significance of this study lies in the development of a bone graft substitute that couples the osteogenic activity of oxysterol with a scaffold designed for optimized oxysterol release kinetics, all of which lead to better repair of bone defects.
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Affiliation(s)
- Akishige Hokugo
- Division of Plastic and Reconstructive Surgery, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA 90025, USA
| | - Takashi Saito
- Department of Biomaterials, Field of Tissue Engineering, Institute for Frontier Medical Sciences, Kyoto University, Kyoto 606-8507, Japan
| | - Andrew Li
- Division of Plastic and Reconstructive Surgery, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA 90025, USA
| | - Keisuke Sato
- Department of Biomaterials, Field of Tissue Engineering, Institute for Frontier Medical Sciences, Kyoto University, Kyoto 606-8507, Japan
| | - Yasuhiko Tabata
- Department of Biomaterials, Field of Tissue Engineering, Institute for Frontier Medical Sciences, Kyoto University, Kyoto 606-8507, Japan
| | - Reza Jarrahy
- Division of Plastic and Reconstructive Surgery, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA 90025, USA.
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24
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Yan F, Li B, Shen F, Fu Q. Formulation and characterization of albumin microspheres containing norcantharidate for liver tumor targeting. Drug Deliv 2014; 22:862-8. [DOI: 10.3109/10717544.2014.898715] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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25
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Effects of placing negatively charged groups at the corona terminus on the aqueous dispersion stabilities for PCL-b-PEO block copolymer micelles. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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26
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Wang H, Xu Y, Zhou X. Docetaxel-loaded chitosan microspheres as a lung targeted drug delivery system: in vitro and in vivo evaluation. Int J Mol Sci 2014; 15:3519-32. [PMID: 24577314 PMCID: PMC3975351 DOI: 10.3390/ijms15033519] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Revised: 02/10/2014] [Accepted: 02/12/2014] [Indexed: 11/30/2022] Open
Abstract
The aim of this study was to prepare docetaxel-loaded chitosan microspheres and to evaluate their in vitro and in vivo characteristics. Glutaraldehyde crosslinked microspheres were prepared using a water-in-oil emulsification method, and characterized in terms of the morphological examination, particle size distribution, encapsulation ratio, drug-loading coefficient and in vitro release. Pharmacokinetics and biodistribution studies were used to evaluate that microspheres have more advantage than the conventional formulations. The emulsion crosslinking method was simple to prepare microspheres and easy to scale up. The formed microspheres were spherical in shape, with a smooth surface and the size was uniform (9.6 ± 0.8 μm); the encapsulation efficiency and drug loading of prepared microspheres were 88.1% ± 3.5% and 18.7% ± 1.2%, respectively. In vitro release indicated that the DTX microspheres had a well-sustained release efficacy and in vivo studies showed that the microspheres were found to release the drug to a maximum extent in the target tissue (lung). The prepared microspheres were found to possess suitable physico-chemical properties and the particle size range. The sustained release of DTX from microspheres revealed its applicability as drug delivery system to minimize the exposure of healthy tissues while increasing the accumulation of therapeutic drug in target sites.
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Affiliation(s)
- Hao Wang
- Department of Thoracic surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, 507 Zheng Min Road, Yangpu District, Shanghai 200433, China.
| | - Yongdong Xu
- Department of Thoracic surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gong Wei Road, Hui Nan Town, Pudong, Shanghai 201399, China.
| | - Xiao Zhou
- Department of Thoracic surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, 507 Zheng Min Road, Yangpu District, Shanghai 200433, China.
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27
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Wilson DR, Zhang N, Silvers AL, Forstner MB, Bader RA. Synthesis and evaluation of cyclosporine A-loaded polysialic acid–polycaprolactone micelles for rheumatoid arthritis. Eur J Pharm Sci 2014; 51:146-56. [DOI: 10.1016/j.ejps.2013.09.013] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Revised: 09/17/2013] [Accepted: 09/17/2013] [Indexed: 12/31/2022]
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28
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Novo L, van Gaal EVB, Mastrobattista E, van Nostrum CF, Hennink WE. Decationized crosslinked polyplexes for redox-triggered gene delivery. J Control Release 2013; 169:246-56. [PMID: 23583705 DOI: 10.1016/j.jconrel.2013.03.035] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Revised: 03/25/2013] [Accepted: 03/29/2013] [Indexed: 11/16/2022]
Abstract
The clinical applicability of polymers as gene delivery systems depends not only on their efficiency, but also on their safety. The cytotoxicity of these systems remains a major issue, mainly due to their cationic nature. Therefore, it is highly preferable to have a system based on biocompatible neutral polymers, lacking polycations, without compromising the DNA condensing and protecting capacities. Here, we introduce a concept to obtain a neutral polymeric gene delivery system, through a 3-step process (charge-driven condensation; stabilization through disulfide crosslinking; polyplex decationization) to generate polyplexes with a core of disulfide crosslinked poly(hydroxypropyl methacrylamide) (pHPMA) in which plasmid DNA (pDNA) is entrapped and a shell of poly(ethylene glycol) (PEG). The resulting polyplexes combine beneficial features of high and stable DNA loading capacity, stealth behavior and reduced toxicity. The nanoparticles are designed to release the pDNA after cellular uptake through cleavage of disulfide crosslinks within the intracellular reducing environment. This was shown by forced introduction of the polyplexes into the cytosol of HeLa cells by electroporation, which resulted in a high level of expression of the reporter gene. Additionally, the decationized polyplexes showed no interference on the cellular cell viability or metabolic activity (even at high dose) and no complex-induced membrane destabilization. Furthermore, decationized polyplexes showed a low degree of non-specific uptake, which is a highly favorable property for targeted therapy. Summarizing, the stabilized, decationized polyplexes presented here contribute to solve the high toxicity, low stability and lack of cellular/tissue specificity of cationic polymer based gene delivery systems.
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Affiliation(s)
- Luís Novo
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands
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Abstract
AbstractThe solubilisation of poorly soluble antineoplastic drug camptothecin by nonionic surfactants (polysorbates and octylphenol ethoxylates) and alkyldimethylamine oxide surfactants with the alkyl chain length 8 to 16 carbon atoms was investigated. The hydrophobicity of the solubilising agent turned out to be the primary structural parameter controlling the solubility efficiency of camptothecin in an aqueous solution. The quantitative parameter of solubilisation (drug loading coefficient) provided values in the range of 0.1–1.2% and 0.1–1.0% for alkyldimethylamine oxides and nonionic surfactants, respectively. The decreasing number of oxyethylene units and the extension of the hydrophobic part of nonionic surfactant molecule resulted in the increase of camptothecin solubility. From the dynamic light scattering measurements, the hydrodynamic diameter values of camptothecin-loaded alkyldimethylamine oxide and nonionic micelles were found in the range of 4–42 nm and 5–120 nm, respectively. The experimental values confirmed the increase in micellar size with the increasing alkyl chain length. The values of the packing parameter of camptothecin-loaded dodecyldimethylamine oxide micelles indicate their spherical shape at all the investigated surfactant concentrations. A simple computer model of camptothecin-loaded dodecyldimethylamine oxide micelle provided the diameter of the structure cross section which is consistent with the experimental values.
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30
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Liu X, Li X, Zhou L, Li S, Sun J, Wang Z, Gao Y, Jiang Y, Lu H, Wang Q, Dai J. Effects of simvastatin-loaded polymeric micelles on human osteoblast-like MG-63 cells. Colloids Surf B Biointerfaces 2013; 102:420-7. [DOI: 10.1016/j.colsurfb.2012.06.037] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2011] [Revised: 06/18/2012] [Accepted: 06/19/2012] [Indexed: 10/28/2022]
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31
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Ding GB, Liu HY, Lv YY, Liu XF, Guo Y, Sun CK, Xu L. Enhanced In Vitro Antitumor Efficacy and Strong Anti-Cell-Migration Activity of a Hydroxycamptothecin-Encapsulated Magnetic Nanovehicle. Chemistry 2012; 18:14037-46. [DOI: 10.1002/chem.201200765] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Revised: 07/07/2012] [Indexed: 12/13/2022]
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Dash TK, Konkimalla VB. Polymeric Modification and Its Implication in Drug Delivery: Poly-ε-caprolactone (PCL) as a Model Polymer. Mol Pharm 2012; 9:2365-79. [DOI: 10.1021/mp3001952] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Tapan K. Dash
- School of Biological Sciences,
National Institute of
Science Education and Research, Institute of Physics Campus, Sainik
School, Sachivalaya marg, Bhubaneswar-751005, India
| | - V. Badireenath Konkimalla
- School of Biological Sciences,
National Institute of
Science Education and Research, Institute of Physics Campus, Sainik
School, Sachivalaya marg, Bhubaneswar-751005, India
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33
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Kulthe SS, Choudhari YM, Inamdar NN, Mourya V. Polymeric micelles: authoritative aspects for drug delivery. Des Monomers Polym 2012. [DOI: 10.1080/1385772x.2012.688328] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Affiliation(s)
- Sushant S. Kulthe
- a Government College of Pharmacy , Aurangabad , 431005 , Maharashtra , India
| | - Yogesh M. Choudhari
- a Government College of Pharmacy , Aurangabad , 431005 , Maharashtra , India
| | - Nazma N. Inamdar
- a Government College of Pharmacy , Aurangabad , 431005 , Maharashtra , India
| | - Vishnukant Mourya
- a Government College of Pharmacy , Aurangabad , 431005 , Maharashtra , India
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Miller T, Hill A, Uezguen S, Weigandt M, Goepferich A. Analysis of immediate stress mechanisms upon injection of polymeric micelles and related colloidal drug carriers: implications on drug targeting. Biomacromolecules 2012; 13:1707-18. [PMID: 22462502 DOI: 10.1021/bm3002045] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Polymeric micelles are ideal carriers for solubilization and targeting applications using hydrophobic drugs. Stability of colloidal aggregates upon injection into the bloodstream is mandatory to maintain the drugs' targeting potential and to influence pharmacokinetics. In this review we analyzed and discussed the most relevant stress mechanisms that polymeric micelles and related colloidal carriers encounter upon injection, including (1) dilution, (2) interactions with blood components, and (3) immunological responses of the body. In detail we analyzed the opsonin-dysopsonin hypothesis that points at a connection between a particles' protein-corona and its tissue accumulation by the enhanced permeability and retention (EPR) effect. In the established theory, size is seen as a necessary condition to reach nanoparticle accumulation in disease modified tissue. There is, however, mounting evidence of other sufficient conditions (e.g., particle charge, receptor recognition of proteins adsorbed onto particle surfaces) triggering nanoparticle extravasation by active mechanisms. In conclusion, the analyzed stress mechanisms are directly responsible for in vivo success or failure of the site-specific delivery with colloidal carrier systems.
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Affiliation(s)
- Tobias Miller
- Exploratory Pharmaceutical Development, Merck KGaA, Darmstadt, Germany
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35
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Lee WF, Cheng TS. Synthesis and Drug-Release Behavior of Porous Biodegradable Amphiphilic Co-polymeric Hydrogels. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 20:2023-37. [DOI: 10.1163/156856208x397631] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Wen-Fu Lee
- a Department of Chemical Engineering, Tatung University, Taipei, Taiwan
| | - Tzu-Shen Cheng
- b Department of Chemical Engineering, Tatung University, Taipei, Taiwan
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36
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Ukawala M, Rajyaguru T, Chaudhari K, Manjappa AS, Pimple S, Babbar AK, Mathur R, Mishra AK, Murthy RSR. Investigation on design of stable etoposide-loaded PEG-PCL micelles: effect of molecular weight of PEG-PCL diblock copolymer on thein vitroandin vivoperformance of micelles. Drug Deliv 2012; 19:155-67. [DOI: 10.3109/10717544.2012.657721] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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37
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Chen WH, Hua MY, Lee RS. Synthesis and characterization of poly(ethylene glycol)-b-poly(ε-caprolactone) copolymers with functional side groups on the polyester block. J Appl Polym Sci 2012. [DOI: 10.1002/app.36225] [Citation(s) in RCA: 6] [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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38
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Kulthe S, Inamdar N, Choudhari Y, Shirolikar S, Borde L, Mourya V. Mixed micelle formation with hydrophobic and hydrophilic Pluronic block copolymers: Implications for controlled and targeted drug delivery. Colloids Surf B Biointerfaces 2011; 88:691-6. [DOI: 10.1016/j.colsurfb.2011.08.002] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Revised: 08/01/2011] [Accepted: 08/02/2011] [Indexed: 10/17/2022]
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39
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Endres TK, Beck-Broichsitter M, Samsonova O, Renette T, Kissel TH. Self-assembled biodegradable amphiphilic PEG–PCL–lPEI triblock copolymers at the borderline between micelles and nanoparticles designed for drug and gene delivery. Biomaterials 2011; 32:7721-31. [DOI: 10.1016/j.biomaterials.2011.06.064] [Citation(s) in RCA: 147] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2011] [Accepted: 06/26/2011] [Indexed: 01/12/2023]
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40
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Rajagopal K, Mahmud A, Christian DA, Pajerowski JD, Brown AEX, Loverde SM, Discher DE. Curvature-coupled hydration of Semicrystalline Polymer Amphiphiles yields flexible Worm Micelles but favors rigid Vesicles: polycaprolactone-based block copolymers. Macromolecules 2010; 43:9736-9746. [PMID: 21499509 DOI: 10.1021/ma101316w] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Crystallization processes are in general sensitive to detailed conditions, but our present understanding of underlying mechanisms is insufficient. A crystallizable chain within a diblock copolymer assembly is expected to couple curvature to crystallization and thereby impact rigidity as well as preferred morphology, but the effects on dispersed phases have remained unclear. The hydrophobic polymer polycaprolactone (PCL) is semi-crystalline in bulk (T(m) = 60°C) and is shown here to generate flexible worm micelles or rigid vesicles in water from several dozen polyethyleneoxide-based diblocks (PEO-PCL). Despite the fact that `worms' have a mean curvature between that of vesicles and spherical micelles, `worms' are seen only within a narrow, process-dependent wedge of morphological phase space that is deep within the vesicle phase. Fluorescence imaging shows worms are predominantly in one of two states - either entirely flexible with dynamic thermal undulations or fully rigid; only a few worms appear rigid at room temperature (T << T(m)), indicating suppression of crystallization by both curvature and PCL hydration. Worm rigidification, which depends on molecular weight, is also prevented by copolymerization of caprolactone with just 10% racemic lactide that otherwise has little impact on bulk crystallinity. In contrast to worms, vesicles of PEO-PCL are always rigid and typically leaky. Defects between crystallite domains induce dislocation-roughening with focal leakiness although select PEO-PCL - which classical surfactant arguments would predict make worms - yield vesicles that retain encapsulant and appear smooth, suggesting a gel or glassy state. Hydration in dispersion thus tends to selectively soften high curvature microphases.
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Affiliation(s)
- Karthikan Rajagopal
- Chemical and Biomolecular Engineering, and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia PA 19104; Complex Assemblies of Soft Matter, Centre National de la Recherche Scientifique - Rhodia - University of Pennsylvania, Unité mixte internationale 3254, Bristol, Pennsylvania 19007, USA
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He WN, Xu JT, Du BY, Fan ZQ, Wang X. Inorganic-Salt-Induced Morphological Transformation of Semicrystalline Micelles of PCL-b-PEO Block Copolymer in Aqueous Solution. MACROMOL CHEM PHYS 2010. [DOI: 10.1002/macp.201000184] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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42
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Mohanty AK, Dilnawaz F, Mohanty C, Sahoo SK. Etoposide-loaded biodegradable amphiphilic methoxy (poly ethylene glycol) and poly (epsilon caprolactone) copolymeric micelles as drug delivery vehicle for cancer therapy. Drug Deliv 2010; 17:330-42. [DOI: 10.3109/10717541003720688] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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43
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Richter A, Olbrich C, Krause M, Kissel T. Solubilization of Sagopilone, a poorly water-soluble anticancer drug, using polymeric micelles for parenteral delivery. Int J Pharm 2010; 389:244-53. [DOI: 10.1016/j.ijpharm.2010.01.032] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2009] [Revised: 01/15/2010] [Accepted: 01/19/2010] [Indexed: 11/30/2022]
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44
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Duan K, Zhang X, Tang X, Yu J, Liu S, Wang D, Li Y, Huang J. Fabrication of cationic nanomicelle from chitosan-graft-polycaprolactone as the carrier of 7-ethyl-10-hydroxy-camptothecin. Colloids Surf B Biointerfaces 2009; 76:475-82. [PMID: 20047821 DOI: 10.1016/j.colsurfb.2009.12.007] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2009] [Revised: 12/08/2009] [Accepted: 12/08/2009] [Indexed: 11/18/2022]
Abstract
In this research, amphiphilic brush-like polycations were synthesized, and used to fabricate cationic nanomicelle as the carrier of 7-ethyl-10-hydroxy-camptothecin (SN-38), in order to enhance its cellular uptake, solubility and stability in aqueous media. In particular, cationic chitosan-graft-polycaprolactone (CS-g-PCL) copolymers were synthesized with a facile one-pot manner via ring-opening polymerization of epsilon-CL onto the hydroxyl groups of CS by using methanesulfonic acid as solvent and catalyst. The formation of CS-g-PCL nanomicelles was confirmed by fluorescence spectrophotoscopy and particle size measurements. It was found that all the nanomicelles showed spherical shapes with narrow size distributions. Their sizes ranged from 47 to 113 nm, and the zeta potentials ranged from 26.7 to 50.8 mV, depending on the grafting content of PCL in CS-g-PCL, suggesting their passive targeting to tumor tissue and endocytosis potential. Water-insoluble antitumor drug, SN-38, was easily encapsulated into CS-g-PCL nanomicelles by lyophilization method. In comparison with bare CS-g-PCL nanomicelles, the corresponding SN-38-loaded nanomicelles showed increased particle sizes and a little reduced zeta potentials. With an increase of grafting PCL content, the drug encapsulation efficiency (EE) and drug loading (DL) of the nanomicelles increased from 64.3 to 84.6% and 6.43 to 8.66%, respectively, whereas their accumulative drug release showed a tendency to decrease due to the enhanced hydrophobic interaction between hydrophobic drug and hydrophobic PCL segments in CS-g-PCL. Also, the CS-g-PCL nanomicelles effectively protected the active lactone ring of SN-38 from hydrolysis under physiological condition, due to the encapsulation of SN-38 into the hydrophobic cores in the nanomicelles. Compared with free SN-38, the SN-38-loaded nanomicelles showed essential decreased cytotoxicity against L929 cell line, and bare CS-g-PCL nanomicelles almost showed non-toxicity. These results suggested the potential utilization of the CS-g-PCL nanomicelles as the carriers of hydrophobic drugs with improving the delivery and release properties.
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Affiliation(s)
- Kongrong Duan
- Institutes for Advanced Interdisciplinary Research, East China Normal University, and Department of Diagnostic Imaging, Changzheng Hospital, Shanghai 200062, PR China
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Wei X, Gong C, Gou M, Fu S, Guo Q, Shi S, Luo F, Guo G, Qiu L, Qian Z. Biodegradable poly(ɛ-caprolactone)–poly(ethylene glycol) copolymers as drug delivery system. Int J Pharm 2009; 381:1-18. [DOI: 10.1016/j.ijpharm.2009.07.033] [Citation(s) in RCA: 256] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2009] [Revised: 07/25/2009] [Accepted: 07/29/2009] [Indexed: 01/02/2023]
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46
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Rastogi R, Anand S, Koul V. Flexible polymerosomes--an alternative vehicle for topical delivery. Colloids Surf B Biointerfaces 2009; 72:161-6. [PMID: 19403279 DOI: 10.1016/j.colsurfb.2009.03.022] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2008] [Revised: 03/17/2009] [Accepted: 03/25/2009] [Indexed: 11/25/2022]
Abstract
Self-assembled vesicles of poly(caprolactone)-poly(ethylene glycol)-poly(caprolactone) co-polymer of 122+/-20 nm were prepared by solvent evaporation method and analyzed morphologically by TEM and AFM. Transmission electron micrographs showed the presence of double-walled deformable structures with average wall thickness of 25 nm. AFM depicted somewhat flattened tops resembling a 'pancake' further confirming the flexibility of the nanocarriers. Permeation studies of fluorescently labelled vesicles in cadaver epidermis confirmed their presence across the stratum corneum within 2h of application and accumulation in the deeper layers thereafter. The flexible nature of these nanosystems makes them an efficient alternative to liposomes for targeting melanomas and basal cell carcinomas.
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Affiliation(s)
- Rachna Rastogi
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, India
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Aliabadi HM, Shahin M, Brocks DR, Lavasanifar A. Disposition of drugs in block copolymer micelle delivery systems: from discovery to recovery. Clin Pharmacokinet 2009; 47:619-34. [PMID: 18783294 DOI: 10.2165/00003088-200847100-00001] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Since their discovery in the early 1980s, polymeric micelles have been the subject of several studies as delivery systems that can potentially improve the therapeutic performance and modify the toxicity profile of encapsulated drugs by changing their pharmacokinetic characteristics. The efforts in this area have led in recent years to the advancement of several polymeric micellar formulations to clinical trials, some of which have shown promise in changing the biodistribution of the incorporated drug after intravenous administration as a means of tumour-targeted drug delivery. Recently, the possible benefit of polymeric micellar delivery in enhancing the absorption and bioavailability of incorporated drugs from alternative routes of drug administration has attracted interest. This article provides an overview of the effect of polymeric micellar delivery on absorption, distribution, metabolism and excretion of incorporated therapeutic agents. It also aims to assess the current information on the performance of polymeric micellar delivery systems in modifying the pharmacokinetics/pharmacodynamics of the incorporated drugs in clinical trials, and to re-examine the important structural factors required for successful design of polymeric micellar delivery systems capable of inducing favourable changes in the pharmacokinetics of the encapsulated drug.
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Chausson M, Fluchère AS, Landreau E, Aguni Y, Chevalier Y, Hamaide T, Abdul-Malak N, Bonnet I. Block copolymers of the type poly(caprolactone)-b-poly(ethylene oxide) for the preparation and stabilization of nanoemulsions. Int J Pharm 2008; 362:153-62. [DOI: 10.1016/j.ijpharm.2008.06.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2008] [Revised: 06/04/2008] [Accepted: 06/07/2008] [Indexed: 11/25/2022]
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49
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WANG Y, LI Y, WANG Q, WU J, FANG X. Pharmacokinetics and Biodistribution of Paclitaxel-loaded Pluronic P105/L101 Mixed Polymeric Micelles. YAKUGAKU ZASSHI 2008; 128:941-50. [DOI: 10.1248/yakushi.128.941] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yongzhong WANG
- Department of Pharmaceutics, School of Pharmacy, Fudan University
- Department of Bioengineering, School of Life Sciences, Anhui University
| | - Yajuan LI
- Department of Pharmaceutics, School of Pharmacy, Fudan University
| | - Qingsong WANG
- Department of Pharmaceutics, School of Pharmacy, Fudan University
| | - Jiang WU
- Department of Pharmaceutics, School of Pharmacy, Fudan University
| | - Xiaoling FANG
- Department of Pharmaceutics, School of Pharmacy, Fudan University
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50
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Wang Y, Li Y, Zhang L, Fang X. Pharmacokinetics and biodistribution of paclitaxel-loaded pluronic P105 polymeric micelles. Arch Pharm Res 2008; 31:530-8. [DOI: 10.1007/s12272-001-1189-2] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2007] [Indexed: 10/22/2022]
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