1
|
Progress in Polymeric Micelles for Drug Delivery Applications. Pharmaceutics 2022; 14:pharmaceutics14081636. [PMID: 36015262 PMCID: PMC9412594 DOI: 10.3390/pharmaceutics14081636] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/27/2022] [Accepted: 07/31/2022] [Indexed: 11/17/2022] Open
Abstract
Polymeric micelles (PMs) have made significant progress in drug delivery applications. A robust core-shell structure, kinetic stability and the inherent ability to solubilize hydrophobic drugs are the highlights of PMs. This review presents the recent advances and understandings of PMs with a focus on the latest drug delivery applications. The types, methods of preparation and characterization of PMs are described along with their applications in oral, parenteral, transdermal, intranasal and other drug delivery systems. The applications of PMs for tumor-targeted delivery have been provided special attention. The safety, quality and stability of PMs in relation to drug delivery are also provided. In addition, advanced polymeric systems and special PMs are also reviewed. The in vitro and in vivo stability assessment of PMs and recent understandings in this area are provided. The patented PMs and clinical trials on PMs for drug delivery applications are considered indicators of their tremendous future applications. Overall, PMs can help overcome many unresolved issues in drug delivery.
Collapse
|
2
|
|
3
|
Wu W, Gu Y, Li W, Ding Q, Guan Y, Liu W, Wu Q, Zhu W. Understanding the Synergistic Correlation between the Spatial Distribution of Drug-Loaded Mixed Micellar Systems and In Vitro Behavior via Experimental and Computational Approaches. Mol Pharm 2021; 18:1643-1655. [PMID: 33759538 DOI: 10.1021/acs.molpharmaceut.0c01095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
To better promote the application of polymeric mixed micelles (PMMs), a coarse-grained molecular dynamics simulation (CGMD) has been employed to investigate the factors controlling the spatial distribution within the PMMs and predict their drug-loading properties, meanwhile, combined with experimental methods to validate and examine it. In this study, the snapshots obtained from CGMD and the results of proton nuclear magnetic resonance (1H NMR) and transmission electron microscopy (TEM) provide new insights into the distribution principle that the spatial distribution depends on the hydrophobic compatibility of drugs with the regions within PMMs. Docetaxel (DTX) is located within the interior or near the core-corona interface of the HS15 hydrophobic core inside FS/PMMs (PMMs fabricated from a nonionic triblock copolymer (F127)) and a nonionic surfactant (HS15), and therefore, the system with a high HS15 ratio, such as system I, is more suitable for loading DTX. In contrast, the more water-soluble puerarin (PUE) is more likely to be solubilized in the "secondary hydrophobic area," mainly formed by the hydrophobic part of F127 within FS/PMMs. However, when the initial feeding concentration of the drug is increased or the FS mixing ratios are changed, an inappropriate distribution would occur and hence influence the drug-loading stability. Also, this impact was further elucidated by the calculated parameters (solvent-accessible surface area (SASA), the radius of gyration (Rg), and energy landscape), and the analysis of the drug leakage, concluding that inappropriate distribution of the drug would lower the stability of the drug in the PMMs. These results combined together provide new insights into the distribution principle that the spatial distribution of drugs within PMMs depends on the hydrophobic compatibility of drugs with the regions formed by micellar materials. Additionally, in vitro drug release yielded a consistent picture with the above conclusions and provides evidence that both the location of the drug within the systems and the stability of the drug-loading system have a great influence on the drug release behavior. Accordingly, this work demonstrates that we can tune the drug-loading stability and drug release behavior via the drug-PMM interaction and drug location study, and CGMD technology would be a step forward in the search for suitable drug-delivery PMMs.
Collapse
Affiliation(s)
- Wenting Wu
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Yu Gu
- Patent Examination Cooperation Jiangsu Center of The Patent Office. Sipo, Suzhou 215010, China
| | - Wendong Li
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Quan Ding
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Yongmei Guan
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Wenjun Liu
- Jiangzhong Pharmaceutical Co., Ltd., Nanchang 330004, China
| | - Qiongzhu Wu
- College of Pharmacy, China Pharmaceutical University, Nanjing 211100, China
| | - Weifeng Zhu
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| |
Collapse
|
4
|
Takahashi R, Miwa S, Rössel C, Fujii S, Lee JH, Schacher FH, Sakurai K. Polymersome formation induced by encapsulation of water-insoluble molecules within ABC triblock terpolymers. Polym Chem 2020. [DOI: 10.1039/d0py00426j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We found a morphological transition from spherical micelles to polymersomes induced by encapsulation of hydrophobic guest molecules.
Collapse
Affiliation(s)
- Rintaro Takahashi
- Department of Chemistry and Biochemistry
- University of Kitakyushu
- Kitakyushu
- Japan
| | - Shotaro Miwa
- Department of Chemistry and Biochemistry
- University of Kitakyushu
- Kitakyushu
- Japan
| | - Carsten Rössel
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University Jena
- D-07743 Jena
- Germany
| | - Shota Fujii
- Department of Chemistry and Biochemistry
- University of Kitakyushu
- Kitakyushu
- Japan
| | - Ji Ha Lee
- Department of Chemistry and Biochemistry
- University of Kitakyushu
- Kitakyushu
- Japan
| | - Felix H. Schacher
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University Jena
- D-07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Kazuo Sakurai
- Department of Chemistry and Biochemistry
- University of Kitakyushu
- Kitakyushu
- Japan
| |
Collapse
|
5
|
KINOSHITA M, KUGIMOTO D, MORIMOTO K, ITO K, TSUBOI K, KANAZAWA S, AKIBA I. Study on the Anomalous Small-Angle X-Ray Scattering on Structural Change in pH-Responsive Polymer Micelles. KOBUNSHI RONBUNSHU 2019. [DOI: 10.1295/koron.2018-0046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Masaki KINOSHITA
- Department of Chemistry and Biochemistry, The University of Kitakyushu
| | - Daisuke KUGIMOTO
- Department of Chemistry and Biochemistry, The University of Kitakyushu
| | - Kosuke MORIMOTO
- Department of Chemistry and Biochemistry, The University of Kitakyushu
| | - Kazuyuki ITO
- Department of Chemistry and Biochemistry, The University of Kitakyushu
| | - Kengo TSUBOI
- Department of Chemistry and Biochemistry, The University of Kitakyushu
| | - Satoshi KANAZAWA
- Department of Chemistry and Biochemistry, The University of Kitakyushu
| | - Isamu AKIBA
- Department of Chemistry and Biochemistry, The University of Kitakyushu
| |
Collapse
|
6
|
Jäger A, Jäger E, Syrová Z, Mazel T, Kováčik L, Raška I, Höcherl A, Kučka J, Konefal R, Humajova J, Poučková P, Štěpánek P, Hrubý M. Poly(ethylene oxide monomethyl ether)- block-poly(propylene succinate) Nanoparticles: Synthesis and Characterization, Enzymatic and Cellular Degradation, Micellar Solubilization of Paclitaxel, and in Vitro and in Vivo Evaluation. Biomacromolecules 2018; 19:2443-2458. [PMID: 29601729 DOI: 10.1021/acs.biomac.8b00048] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Polyester-based nanostructures are widely studied as drug-delivery systems due to their biocompatibility and biodegradability. They are already used in the clinic. In this work, we describe a new and simple biodegradable and biocompatible system as the Food and Drug Administration approved polyesters (poly-ε-caprolactone, polylactic acid, and poly(lactic- co-glycolic acid)) for the delivery of the anticancer drug paclitaxel (PTX) as a model drug. A hydrophobic polyester, poly(propylene succinate) (PPS), was prepared from a nontoxic alcohol (propylene glycol) and monomer from the Krebs's cycle (succinic acid) in two steps via esterification and melt polycondensation. Furthermore, their amphiphilic block copolyester, poly(ethylene oxide monomethyl ether)- block-poly(propylene succinate) (mPEO- b-PPS), was prepared by three steps via esterification followed by melt polycondensation and the addition of mPEO to the PPS macromolecules. Analysis of the in vitro cellular behavior of the prepared nanoparticle carriers (NPs) (enzymatic degradation, uptake, localization, and fluorescence resonance energy-transfer pair degradation studies) was performed by fluorescence studies. PTX was loaded to the NPs of variable sizes (30, 70, and 150 nm), and their in vitro release was evaluated in different cell models and compared with commercial PTX formulations. The mPEO- b-PPS copolymer analysis displays glass transition temperature < body temperature < melting temperature, lower toxicity (including the toxicity of their degradation products), drug solubilization efficacy, stability against spontaneous hydrolysis during transport in bloodstream, and simultaneous enzymatic degradability after uptake into the cells. The detailed cytotoxicity in vitro and in vivo tumor efficacy studies have shown the superior efficacy of the NPs compared with PTX and PTX commercial formulations.
Collapse
Affiliation(s)
- Alessandro Jäger
- Institute of Macromolecular Chemistry , Heyrovsky Square 2 , 162 06 Prague , Czech Republic
| | - Eliézer Jäger
- Institute of Macromolecular Chemistry , Heyrovsky Square 2 , 162 06 Prague , Czech Republic
| | | | | | | | | | - Anita Höcherl
- Institute of Macromolecular Chemistry , Heyrovsky Square 2 , 162 06 Prague , Czech Republic
| | - Jan Kučka
- Institute of Macromolecular Chemistry , Heyrovsky Square 2 , 162 06 Prague , Czech Republic
| | - Rafal Konefal
- Institute of Macromolecular Chemistry , Heyrovsky Square 2 , 162 06 Prague , Czech Republic
| | - Jana Humajova
- Institute of Biophysics and Informatics, First Faculty of Medicine , Charles University , Salmovska 1 , 120 00 Prague , Czech Republic
| | - Pavla Poučková
- Institute of Biophysics and Informatics, First Faculty of Medicine , Charles University , Salmovska 1 , 120 00 Prague , Czech Republic
| | - Petr Štěpánek
- Institute of Macromolecular Chemistry , Heyrovsky Square 2 , 162 06 Prague , Czech Republic
| | - Martin Hrubý
- Institute of Macromolecular Chemistry , Heyrovsky Square 2 , 162 06 Prague , Czech Republic
| |
Collapse
|
7
|
Sasaki S, Machida G, Nakanishi R, Kinoshita M, Akiba I. Elucidation of Spatial Distribution of Hydrophobic Aromatic Compounds Encapsulated in Polymer Micelles by Anomalous Small-Angle X-ray Scattering. Polymers (Basel) 2018; 10:polym10020180. [PMID: 30966216 PMCID: PMC6415145 DOI: 10.3390/polym10020180] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 02/06/2018] [Accepted: 02/11/2018] [Indexed: 11/30/2022] Open
Abstract
Spatial distribution of bromobenzene (BrBz) and 4-bromophenol (BrPh) as hydrophobic aromatic compounds incorporated in polymer micelles with vesicular structure consisting of poly(ethylene glycol)-b-poly(tert-butyl methacrylate) (PEG-b-PtBMA) in aqueous solution is investigated by anomalous small-angle X-ray scattering (ASAXS) analyses near Br K edge. Small-angle X-ray scattering (SAXS) intensities from PEG-b-PtBMA micelles containing BrBz and BrPh were decreased as the energy of incident X-ray approached to Br K edge corresponding to the energy dependence of anomalous scattering factor of Br. The analysis for the energy dependence of SAXS profiles from the PEG-b-PtBMA micelles containing BrBz revealed that BrBz molecules were located in hydrophobic layer of PEG-b-PtBMA micelles. On the contrary, it was found by ASAXS that BrPh existed not only in the hydrophobic layer but also in the shell layer. Since ASAXS analysis successfully accomplished to visualize the spatial distribution of hydrophobic molecules in polymer micelles, it should be expected to be a powerful tool for characterization of drug delivery vehicles.
Collapse
Affiliation(s)
- Shota Sasaki
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu 8080135, Japan.
| | - Ginpei Machida
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu 8080135, Japan.
| | - Ryosuke Nakanishi
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu 8080135, Japan.
| | - Masaki Kinoshita
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu 8080135, Japan.
| | - Isamu Akiba
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu 8080135, Japan.
| |
Collapse
|
8
|
Wei G, Prabhu VM, Piunova VA, Carr AC, Swope WC, Miller RD. Spatial Distribution of Hydrophobic Drugs in Model Nanogel-Core Star Polymers. Macromolecules 2017; 50:9702-9712. [PMID: 32636533 DOI: 10.1021/acs.macromol.7b02061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Star polymers with a cross-linked nanogel core are promising carriers of cargo for therapeutic applications due to the synthetic control of amphiphilicity of arms and stability at infinite dilution. Three nanogel-core star polymers were investigated to understand how the arm-block chemical structure controls loading efficiency of a model drug, ibuprofen, and its spatial distribution. The spatial distribution profiles of hydrophobic core, hydrophilic corona, and encapsulated drug were determined by small-angle neutron scattering (SANS). SANS provides the nanometer-scale sensitivity to determine how the arm-block chemistry enhances the sequestering of ibuprofen. Validated molecular dynamics simulations capture the trends in drug profile and polymer segment distribution with further details on drug orientation distribution. This work provides a basis to study structure-function relationships in macromolecular-based carriers of cargo and represents a path toward validated and predictive simulation.
Collapse
Affiliation(s)
- Guangmin Wei
- Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Vivek M Prabhu
- Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Victoria A Piunova
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, United States
| | - Amber C Carr
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, United States
| | - William C Swope
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, United States
| | - Robert D Miller
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, United States
| |
Collapse
|