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Gimeno-Ferrero R, de Jesús JR, Leal MP. Efficient Strategy to Synthesize Tunable pH-Responsive Hybrid Micelles Based on Iron Oxide and Gold Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:11775-11784. [PMID: 38769025 PMCID: PMC11155236 DOI: 10.1021/acs.langmuir.4c01318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 05/07/2024] [Accepted: 05/09/2024] [Indexed: 05/22/2024]
Abstract
The preparation of multifunctional nanomaterials based on inorganic nanoparticles with organic materials has emerged as a promising strategy for the development of new nanomedicines for in vitro and in vivo biomedical applications. Here, we synthesized pH-responsive hybrid inorganic micelles by combining a novel pH-responsive amphiphilic molecule with hydrophobic payloads. This amphiphile was synthesized in a one-pot reaction and self-assembled readily into micelles under acidic pH conditions. In the presence of hydrophobic NP payloads such as AuNPs or IONPs, the amphiphile self-organized around them through hydrophobic interactions, resulting in the formation of colloidally stable hybrid micelles. The size of the hydrophobic NPs determined the pH-response of the inorganic hybrid micelles, which is tuned from pH 7 to 11 for our pH-responsive amphiphilic molecule. This achievement represents a novel approach for the synthesis of tunable pH-responsive hybrid micelles based on inorganic NPs for biomedical imaging, hyperthermia treatment, and also drug delivery nanosystems.
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Affiliation(s)
- Raúl Gimeno-Ferrero
- Departamento de Química
Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, c/Profesor García González, 2, 41012 Sevilla, Spain
| | - Javier Rodríguez de Jesús
- Departamento de Química
Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, c/Profesor García González, 2, 41012 Sevilla, Spain
| | - Manuel Pernia Leal
- Departamento de Química
Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, c/Profesor García González, 2, 41012 Sevilla, Spain
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2
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Saddam Hussain M, Khetan R, Clulow AJ, Ganesan R, MacMillan A, Robinson N, Ahmed-Cox A, Krasowska M, Albrecht H, Blencowe A. Teaching an Old Dog New Tricks: A Global Approach to Enhancing the Cytotoxicity of Drug-Loaded, Non-responsive Micelles Using Oligoelectrolytes. ACS APPLIED MATERIALS & INTERFACES 2024; 16:9736-9748. [PMID: 38349780 DOI: 10.1021/acsami.3c16551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
Polymeric micelles have been extensively studied as vectors for the delivery of hydrophobic drugs for the treatment of cancers and other diseases. Despite intensive research, few formulations provide significant benefits, and even fewer have been clinically approved. While many traditional non-responsive micelles have excellent safety profiles, they lack the ability to respond to the intracellular environment and release their cargo in a spatiotemporally defined manner to effectively deliver large doses of cytotoxic drugs into the cytosol of cells that overwhelm efflux pumps. As a novel and adaptable strategy, we hypothesized that well-established non-responsive polymeric micelles could be augmented with a pH-trigger via the co-encapsulation of cytocompatible oligoelectrolytes, which would allow rapid cargo release in the endosome, leading to increased cytotoxicity. Herein, we demonstrate how this strategy can be applied to render non-responsive micelles pH-responsive, resulting in abrupt cargo release at specific and tunable pH values compatible with endosomal delivery, which significantly increased their cytotoxicity up to 3-fold in an ovarian adenocarcinoma (SKOV-3) cell line compared to non-responsive micelles. In comparison, the oligoelectrolyte-loaded micelles were significantly less toxic to healthy 3T3 fibroblasts, indicating a selective cargo release in cancer cell lines. Oligoelectrolytes can be co-encapsulated in the micelles along with drugs at high encapsulation efficiency percentages, which are both ejected from the micelle core upon oligoelectrolyte ionization. Mechanistically, the increase in cytotoxicity appears to also result from the accelerated endosomal escape of the cargo caused by disruption of the endosomal membrane by the simultaneous release of the oligoelectrolytes from the micelles. Furthermore, we show how this approach is broadly applicable to non-responsive micelles regardless of their composition and various classes of hydrophobic chemotherapeutics. The preliminary studies presented here reveal the versatility and wide scope of oligoelectrolyte-mediated, pH-triggered drug release as a compelling and powerful strategy to enhance the cytotoxicity of non-responsive polymeric micelles.
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Affiliation(s)
- Md Saddam Hussain
- Applied Chemistry and Translational Biomaterials (ACTB) Group, Centre for Pharmaceutical Innovation (CPI), UniSA CHS, University of South Australia, Adelaide, South Australia 5000, Australia
| | - Riya Khetan
- Centre for Pharmaceutical Innovation (CPI), UniSA CHS, University of South Australia, Adelaide, South Australia 5000, Australia
| | - Andrew J Clulow
- Australian Synchrotron, Australian Nuclear Science and Technology Organisation (ANSTO), 800 Blackburn Road, Clayton, Victoria 3168, Australia
- Drug Delivery, Disposition & Dynamics, Monash Institute of Pharmaceutical Sciences, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Raja Ganesan
- Centre for Cancer Biology, UniSA CHS, University of South Australia, Adelaide, South Australia 5000, Australia
| | - Alexander MacMillan
- Katharina Gaus Light Microscopy Facility, Mark Wainwright Analytical Centre, University of New South Wales, Sydney, New South Wales 2033, Australia
| | - Nirmal Robinson
- Centre for Cancer Biology, UniSA CHS, University of South Australia, Adelaide, South Australia 5000, Australia
| | - Aria Ahmed-Cox
- Katharina Gaus Light Microscopy Facility, Mark Wainwright Analytical Centre, University of New South Wales, Sydney, New South Wales 2033, Australia
- Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, New South Wales 2750, Australia
- Australian Centre for Nanomedicine, Faculty of Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Marta Krasowska
- Surface Interactions and Soft Matter (SISM) Group, Future Industries Institute, UniSA STEM, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | - Hugo Albrecht
- Centre for Pharmaceutical Innovation (CPI), UniSA CHS, University of South Australia, Adelaide, South Australia 5000, Australia
| | - Anton Blencowe
- Applied Chemistry and Translational Biomaterials (ACTB) Group, Centre for Pharmaceutical Innovation (CPI), UniSA CHS, University of South Australia, Adelaide, South Australia 5000, Australia
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3
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Wang KH, Liu CH, Tan DH, Nieh MP, Su WF. Block Sequence Effects on the Self-Assembly Behaviors of Polypeptide-Based Penta-Block Copolymer Hydrogels. ACS APPLIED MATERIALS & INTERFACES 2024; 16:6674-6686. [PMID: 38289014 PMCID: PMC10859891 DOI: 10.1021/acsami.3c18954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/16/2024] [Accepted: 01/17/2024] [Indexed: 02/09/2024]
Abstract
Peptide-based hydrogels have great potential for applications in tissue engineering, drug delivery, and so on. We systematically synthesize, characterize, and investigate the self-assembly behaviors of a series of polypeptide-based penta-block copolymers by varying block sequences and lengths. The copolymers contain hydrophobic blocks of poly(γ-benzyl-l-glutamate) (PBG, Bx) and two kinds of hydrophilic blocks, poly(l-lysine) (PLL, Ky) and poly(ethylene glycol) (PEG, EG34), where x and y are the number of repeating units of each block, where PBG and PLL blocks have unique functions for nerve regeneration and cell adhesion. It shows that a sufficient length of the middle hydrophilic segment capped with hydrophobic end PBG blocks is required. They first self-assemble into flower-like micelles and sequentially form transparent hydrogels (as low as 2.3 wt %) with increased polymer concentration. The hydrogels contain a microscale porous structure, a desired property for tissue engineering to facilitate the access of nutrient flow for cell growth and drug delivery systems with high efficiency of drug storage. We hypothesize that the structure of Bx-Ky-EG34-Ky-Bx agglomerates is beyond micron size (transparent), while that of Ky-Bx-EG34-Bx-Ky is on the submicron scale (opaque). We establish a working strategy to synthesize a polypeptide-based block copolymer with a wide window of sol-gel transition. The study offers insight into rational polypeptide hydrogel design with specific morphology, exploring the novel materials as potential candidates for neural tissue engineering.
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Affiliation(s)
- Ke-Hsin Wang
- Department
of Materials Science and Engineering, National
Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Chung-Hao Liu
- Polymer
program, Institute of Materials Science, University of Connecticut, 25 King Hill Road, Unit 3136, Storrs, Connecticut 06269-3136, United States
| | - Dun-Heng Tan
- Department
of Materials Science and Engineering, National
Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Mu-Ping Nieh
- Polymer
program, Institute of Materials Science, University of Connecticut, 25 King Hill Road, Unit 3136, Storrs, Connecticut 06269-3136, United States
- Department
of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Wei-Fang Su
- Department
of Materials Science and Engineering, National
Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
- Department
of Materials Engineering, Ming-Chi University
of Technology, 84 Gungjuan
Rd., Taishan Dist, New Taipei City 243303, Taiwan
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Li Z, Zheng Y, Yan J, Yan Y, Peng C, Wang Z, Liu H, Liu Y, Zhou Y, Ding M. Self-Assembly of Poly(Amino Acid)s Mediated by Secondary Conformations. Chembiochem 2023; 24:e202300132. [PMID: 37340829 DOI: 10.1002/cbic.202300132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 06/16/2023] [Accepted: 06/20/2023] [Indexed: 06/22/2023]
Abstract
Self-assembly of block copolymers has recently drawn great attention due to its remarkable performance and wide variety of applications in biomedicine, biomaterials, microelectronics, photoelectric materials, catalysts, etc. Poly(amino acid)s (PAAs), formed by introducing synthetic amino acids into copolymer backbones, are able to fold into different secondary conformations when compared with traditional amphiphilic copolymers. Apart from changing the chemical composition and degree of polymerization of copolymers, the self-assembly behaviors of PAAs could be controlled by their secondary conformations, which are more flexible and adjustable for fine structure tailoring. In this article, we summarize the latest findings on the variables that influence secondary conformations, in particular the regulation of order-to-order conformational changes and the approaches used to manage the self-assembly behaviors of PAAs. These strategies include controlling pH, redox reactions, coordination, light, temperature, and so on. Hopefully, we can provide valuable perspectives that will be useful for the future development and use of synthetic PAAs.
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Affiliation(s)
- Zifen Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Yi Zheng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Jingyue Yan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Yue Yan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Chuan Peng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Zuojie Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Hang Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Yang Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Yeqiang Zhou
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Mingming Ding
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
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5
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Phase separation in polymer-based biomimetic structures containing planar membranes. Biointerphases 2022; 17:060802. [PMID: 36575113 DOI: 10.1116/6.0002078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Phase separation in biological membranes is crucial for proper cellular functions, such as signaling and trafficking, as it mediates the interactions of condensates on membrane-bound organelles and transmembrane transport to targeted destination compartments. The separation of a lipid bilayer into phases and the formation of lipid rafts involve the restructuring of molecular localization, their immobilization, and local accumulation. By understanding the processes underlying the formation of lipid rafts in a cellular membrane, it is possible to reconstitute this phenomenon in synthetic biomimetic membranes, such as hybrids of lipids and polymers or membranes composed solely of polymers, which offer an increased physicochemical stability and unlimited possibilities of chemical modification and functionalization. In this article, we relate the main lipid bilayer phase transition phenomenon with respect to hybrid biomimetic membranes, composed of lipids mixed with polymers, and fully synthetic membranes. Following, we review the occurrence of phase separation in biomimetic hybrid membranes based on lipids and/or direct lipid analogs, amphiphilic block copolymers. We further exemplify the phase separation and the resulting properties and applications in planar membranes, free-standing and solid-supported. We briefly list methods leading to the formation of such biomimetic membranes and reflect on their improved overall stability and influence on the separation into different phases within the membranes. Due to the importance of phase separation and compartmentalization in cellular membranes, we are convinced that this compiled overview of this phenomenon will be helpful for any researcher in the biomimicry area.
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Xia X, Zhang J, Adu-Frimpong M, Li X, Shen X, He Q, Rong W, Ji H, Toreniyazov E, Xu X, Yu J, Wang Q. Hyperoside-loaded TPGs/mPEG-PDLLA self-assembled polymeric micelles: preparation, characterization and in vitro/ in vivo evaluation. Pharm Dev Technol 2022; 27:829-841. [PMID: 36073188 DOI: 10.1080/10837450.2022.2122506] [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: 10/14/2022]
Abstract
Hyperoside (Hyp) self-assembled polymeric micelles (Hyp-PMs) were purposely developed to enhance aqueous solubility, in vivo availability and anti-oxidative effect of Hyp. In preparing Hyp-PMs, we employed the thin film dispersion method with the micelles consisting of TPGs and mPEG2000-PDLLA3000. The particle size, polydispersity index and zeta potential of Hyp-PMs were 67.42 ± 1.44 nm, 0.229 ± 0.015 and -18.67 ± 0.576 mV, respectively, coupled with high encapsulation efficiency (EE)of 90.63 ± 1.45% and drug loading (DL) of 6.97 ± 1.56%. Furthermore, the value of critical micelle concentration (CMC) was quite low, which indicated good stability and improved self-assembly ability of Hyp-PMs. Also, trend of in vitro Hyp release from Hyp-PMs demonstrated enhanced solubility of Hyp. Similarly, in comparison with free Hyp, oral bioavailability of Hyp-PMs was improved (about 8 folds) whilst half-life of Hyp-PMs was extended (about 3 folds). In vitro anti-oxidative effect showed obvious strong scavenging DPPH capability of Hyp-PMs, which may be attributed to its smaller size and better solubility. Altogether, Hyp-PMs may serve as a possible strategy to potentially enhance aqueous solubility, bioavailability and anti-oxidative effect of Hyp, which may play a key role in Hyp application in the pharmaceutical industries.
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Affiliation(s)
- Xiaoli Xia
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Jian Zhang
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Michael Adu-Frimpong
- Department of Biochemistry and Forensic Sciences, School of Chemical and Biochemical Sciences, C. K. Tedam University of Technology and Applied Sciences (CKT-UTAS), Navrongo, UK-0215-5321, Ghana
| | - Xiaoxiao Li
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Xinyi Shen
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Qing He
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Wanjing Rong
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | - Hao Ji
- Jiangsu Tian Sheng Pharmaceutical Co., Ltd., Zhenjiang, China
| | - Elmurat Toreniyazov
- Ashkent State Agricultural University (Nukus Branch), Avdanberdi str, 742009 Nukus, Uzbekistan
| | - Ximing Xu
- Department of Pharmaceutics, School of Pharmacy, Center for Nano Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang 212013, 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 212013, 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 212013, People's Republic of China
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Politakos N, Moutsios I, Manesi GM, Moschovas D, Abukaev AF, Nikitina EA, Kortaberria G, Ivanov DA, Avgeropoulos A. Synthesis, Characterization and Structure Properties of Biobased Hybrid Copolymers Consisting of Polydiene and Polypeptide Segments. Polymers (Basel) 2021; 13:3818. [PMID: 34771373 PMCID: PMC8588293 DOI: 10.3390/polym13213818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 11/16/2022] Open
Abstract
Novel hybrid materials of the PB-b-P(o-Bn-L-Tyr) and PI-b-P(o-Bn-L-Tyr) type (where PB: 1,4/1,2-poly(butadiene), PI: 3,4/1,2/1,4-poly(isoprene) and P(o-Bn-L-Tyr): poly(ortho-benzyl-L-tyrosine)) were synthesized through anionic and ring-opening polymerization under high-vacuum techniques. All final materials were molecularly characterized through infrared spectroscopy (IR) and proton and carbon nuclear magnetic resonance (1H-NMR, 13C-NMR) in order to confirm the successful synthesis and the polydiene microstructure content. The stereochemical behavior of secondary structures (α-helices and β-sheets) of the polypeptide segments combined with the different polydiene microstructures was also studied. The influence of the α-helices and β-sheets, as well as the polydiene chain conformations on the thermal properties (glass transition temperatures, thermal stability, α- and β-relaxation) of the present biobased hybrid copolymers, was investigated through differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and dielectric spectroscopy (DS). The obtained morphologies in thin films for all the synthesized materials via atomic force microscopy (AFM) indicated the formation of polypeptide fibrils in the polydiene matrix.
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Affiliation(s)
- Nikolaos Politakos
- Department of Materials Science Engineering, University of Ioannina, 45110 Ioannina, Greece; (N.P.); (I.M.); (G.-M.M.); (D.M.)
- POLYMAT and Departamento de Química Aplicada, Facultad de Ciencias Químicas, University of the Basque Country UPV/EHU, Joxe Mari Korta Zentroa, Tolosa Etorbidea 72, 20018 San Sebastián, Spain
| | - Ioannis Moutsios
- Department of Materials Science Engineering, University of Ioannina, 45110 Ioannina, Greece; (N.P.); (I.M.); (G.-M.M.); (D.M.)
| | - Gkreti-Maria Manesi
- Department of Materials Science Engineering, University of Ioannina, 45110 Ioannina, Greece; (N.P.); (I.M.); (G.-M.M.); (D.M.)
| | - Dimitrios Moschovas
- Department of Materials Science Engineering, University of Ioannina, 45110 Ioannina, Greece; (N.P.); (I.M.); (G.-M.M.); (D.M.)
| | - Ainur F. Abukaev
- Faculty of Chemistry, Lomonosov Moscow State University (MSU), GSP-1, 1-3 Leninskiye Gory, 119991 Moscow, Russia; (A.F.A.); (E.A.N.); (D.A.I.)
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Moscow, Russia
| | - Evgeniia A. Nikitina
- Faculty of Chemistry, Lomonosov Moscow State University (MSU), GSP-1, 1-3 Leninskiye Gory, 119991 Moscow, Russia; (A.F.A.); (E.A.N.); (D.A.I.)
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Moscow, Russia
| | - Galder Kortaberria
- ‘Materials + Tecnologies’ Research Group, Chemistry and Environmental Engineering Department, Faculty of Engineering, University of the Basque Country (UPV/EHU), Plaza Europa 1, 20018 Donostia, Spain;
| | - Dimitri A. Ivanov
- Faculty of Chemistry, Lomonosov Moscow State University (MSU), GSP-1, 1-3 Leninskiye Gory, 119991 Moscow, Russia; (A.F.A.); (E.A.N.); (D.A.I.)
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Moscow, Russia
- Institut de Sciences des Matériaux de Mulhouse–IS2M, CNRS UMR7361, 15 Jean Starcky, 68057 Mulhouse, France
| | - Apostolos Avgeropoulos
- Department of Materials Science Engineering, University of Ioannina, 45110 Ioannina, Greece; (N.P.); (I.M.); (G.-M.M.); (D.M.)
- Faculty of Chemistry, Lomonosov Moscow State University (MSU), GSP-1, 1-3 Leninskiye Gory, 119991 Moscow, Russia; (A.F.A.); (E.A.N.); (D.A.I.)
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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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9
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Sharma B, Ma Y, Ferguson AL, Liu AP. In search of a novel chassis material for synthetic cells: emergence of synthetic peptide compartment. SOFT MATTER 2020; 16:10769-10780. [PMID: 33179713 DOI: 10.1039/d0sm01644f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Giant lipid vesicles have been used extensively as a synthetic cell model to recapitulate various life-like processes, including in vitro protein synthesis, DNA replication, and cytoskeleton organization. Cell-sized lipid vesicles are mechanically fragile in nature and prone to rupture due to osmotic stress, which limits their usability. Recently, peptide vesicles have been introduced as a synthetic cell model that would potentially overcome the aforementioned limitations. Peptide vesicles are robust, reasonably more stable than lipid vesicles and can withstand harsh conditions including pH, thermal, and osmotic variations. This mini-review summarizes the current state-of-the-art in the design, engineering, and realization of peptide-based chassis materials, including both experimental and computational work. We present an outlook for simulation-aided and data-driven design and experimental realization of engineered and multifunctional synthetic cells.
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Affiliation(s)
- Bineet Sharma
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA.
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10
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Hsu CW, Hsieh MH, Xiao MC, Chou YH, Wang TH, Chiang WH. pH-responsive polymeric micelles self-assembled from benzoic-imine-containing alkyl-modified PEGylated chitosan for delivery of amphiphilic drugs. Int J Biol Macromol 2020; 163:1106-1116. [PMID: 32679318 DOI: 10.1016/j.ijbiomac.2020.07.110] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/06/2020] [Accepted: 07/10/2020] [Indexed: 11/19/2022]
Abstract
In order to efficiently promote loading efficiency and aqueous photostability of indocyanine green (ICG), an amphiphilic tricarbocyanine dye, the polysaccharide-based nanomicelles utilized as a vehicle for ICG were fabricated by self-assembly of the amphiphilic benzoic-imine-containing PEGylated chitosan/4-(dodecyloxy)benzaldehyde (DBA) conjugates in aqueous solution of pH 7.4. The resulting polymeric micelles were characterized to have a hydrophobic hybrid chitosan/DBA core surrounded by hydrophilic PEG shells. Importantly, the encapsulation of ICG into the hybrid chitosan/DBA core of polymeric micelles by the combined hydrophobic and electrostatic interactions not only promoted the ICG loading but also enhanced its aqueous photostability. With the pH of micelle suspension being reduced from 7.4 to 5.0, upon acid-triggered cleavage of benzoic-imine bonds between chitosan and DBA as well as the extending of the protonated chitosan segments from hybrid cores toward aqueous phase, the rather hydrophobic DBA-rich core was formed within micelles, thereby leading to shrinking of the polymeric micelles. The robust ICG-loaded polymeric micelles showed several superior properties including the inhibition of ICG leakage under the mimic physiological and acidic conditions, favorable biocompatibility and photo-activated hyperthermia effect. This work suggests that the pH-responsive ICG-carrying chitosan-based micelles display great potential in cancer theranostic.
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Affiliation(s)
- Ching-Wei Hsu
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Ming-Hung Hsieh
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Min-Cong Xiao
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Ya-Hsuan Chou
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Tzu-Hao Wang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Wen-Hsuan Chiang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan.
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11
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Huang Q, Xu Z, Cai C, Lin J. Micelles with a Loose Core Self‐Assembled from Coil‐
g
‐Rod Graft Copolymers Displaying High Drug Loading Capacity. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000121] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Qijing Huang
- Shanghai Key Laboratory of Advanced Polymeric MaterialsKey Laboratory for Ultrafine Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Zhanwen Xu
- Shanghai Key Laboratory of Advanced Polymeric MaterialsKey Laboratory for Ultrafine Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Chunhua Cai
- Shanghai Key Laboratory of Advanced Polymeric MaterialsKey Laboratory for Ultrafine Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric MaterialsKey Laboratory for Ultrafine Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
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12
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Gao YE, Bai S, Ma X, Zhang X, Hou M, Shi X, Huang X, Chen J, Wen F, Xue P, Kang Y, Xu Z. Codelivery of doxorubicin and camptothecin by dual-responsive unimolecular micelle-based β-cyclodextrin for enhanced chemotherapy. Colloids Surf B Biointerfaces 2019; 183:110428. [PMID: 31415956 DOI: 10.1016/j.colsurfb.2019.110428] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/02/2019] [Accepted: 08/05/2019] [Indexed: 01/05/2023]
Abstract
Tumor microenvironment (TME)-induced drug delivery technology is a promising strategy for improving low drug accumulation efficiency, short blood circulation and weak therapeutic effect. In this work, a dual-responsive (reduction- and pH-responsive) polyprodrug nanoreactor based on β-cyclodextrin (β-CD) was constructed for combinational chemotherapy. Specifically, the dual-responsive star polymeric prodrug was synthesized by atom transfer radical polymerization (ATRP) based on a starburst initiator of β-CD-Br. The obtained polyprodrug contained a hydrophilic chain of poly-(ethylene glycol) methyl ether methacrylate (POEGMA) and a hydrophobic part of camptothecin (CPT) prodrug and poly[2-(diisopropylamino)ethyl methacrylate] (PDPA), denoted as β-CD-PDPA-POEGMA-PCPT (CCDO for short). The obtained CCDO could form stable unimolecular micelles, which could be efficiently internalized by cancer cells. To enhance the curative effect, the anticancer agent doxorubicin (DOX) could be encapsulated into the hydrophobic cavity of the CCDO by hydrophobic-hydrophobic interaction. In vitro drug release studies showed that the obtained CCDO/DOX micelles controlled the release of active CPT and DOX occurring in a reductive environment and at low pH. In vitro cytotoxicity results suggested that the anticancer efficacy of dual-responsive CCDO/DOX micelles was superior to that of CCDO micelles. In addition, in vivo results verified good blood compatibility of the unimolecular micelles. This integrated dual-responsive drug delivery system may solve the low drug loading and poor controlled release problems found in traditional polymer-based drug carriers, providing an innovative and promising route for cancer therapy.
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Affiliation(s)
- Yong-E Gao
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy and Chongqing Engineering Research Center for Micro-Nano Biomedical Materials and Devices, Southwest University, Chongqing 400715, PR China
| | - Shuang Bai
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy and Chongqing Engineering Research Center for Micro-Nano Biomedical Materials and Devices, Southwest University, Chongqing 400715, PR China
| | - Xiaoqian Ma
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy and Chongqing Engineering Research Center for Micro-Nano Biomedical Materials and Devices, Southwest University, Chongqing 400715, PR China
| | - Xiaoli Zhang
- Department of Hematology and Oncology, Shenzhen Children's Hospital, Shenzhen, Guangdong 518038, PR China
| | - Meili Hou
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy and Chongqing Engineering Research Center for Micro-Nano Biomedical Materials and Devices, Southwest University, Chongqing 400715, PR China
| | - Xiaoxiao Shi
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy and Chongqing Engineering Research Center for Micro-Nano Biomedical Materials and Devices, Southwest University, Chongqing 400715, PR China
| | - Xiaohua Huang
- Guangan Changming Research Institute for Advanced Industrial Technology, Guangan 638500, PR China
| | - Jiucun Chen
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy and Chongqing Engineering Research Center for Micro-Nano Biomedical Materials and Devices, Southwest University, Chongqing 400715, PR China
| | - Feiqiu Wen
- Department of Hematology and Oncology, Shenzhen Children's Hospital, Shenzhen, Guangdong 518038, PR China.
| | - Peng Xue
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy and Chongqing Engineering Research Center for Micro-Nano Biomedical Materials and Devices, Southwest University, Chongqing 400715, PR China
| | - Yuejun Kang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy and Chongqing Engineering Research Center for Micro-Nano Biomedical Materials and Devices, Southwest University, Chongqing 400715, PR China
| | - Zhigang Xu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy and Chongqing Engineering Research Center for Micro-Nano Biomedical Materials and Devices, Southwest University, Chongqing 400715, PR China; Guangan Changming Research Institute for Advanced Industrial Technology, Guangan 638500, PR China.
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13
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Hydrophobic drug self-delivery systems as a versatile nanoplatform for cancer therapy: A review. Colloids Surf B Biointerfaces 2019; 180:202-211. [DOI: 10.1016/j.colsurfb.2019.04.050] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 04/23/2019] [Accepted: 04/24/2019] [Indexed: 12/24/2022]
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14
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Rimmerman D, Leshchev D, Hsu DJ, Hong J, Abraham B, Henning R, Kosheleva I, Chen LX. Revealing Fast Structural Dynamics in pH-Responsive Peptides with Time-Resolved X-ray Scattering. J Phys Chem B 2019; 123:2016-2021. [PMID: 30763085 PMCID: PMC6533112 DOI: 10.1021/acs.jpcb.9b00072] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Many biomaterials can adapt to changes in the local biological environment (such as pH, temperature, or ionic composition) in order to regulate function or deliver a payload. Such adaptation to environmental perturbation is typically a hierarchical process that begins with a response at a local structural level and then propagates to supramolecular and macromolecular scales. Understanding fast structural dynamics that occur upon perturbation is important for rational design of functional biomaterials. However, few nanosecond time-resolved methods can probe both intra- and intermolecular scales simultaneously with a high structural resolution. Here, we utilize time-resolved X-ray scattering to probe nanosecond to microsecond structural dynamics of poly-l-glutamic acid undergoing protonation via a pH jump initiated by photoexcitation of a photoacid. Our results provide insights into the protonation-induced hierarchical changes in packing of peptide chains, formation of a helical structure, and the associated collapse of the peptide chain.
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Affiliation(s)
- Dolev Rimmerman
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Denis Leshchev
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Darren J. Hsu
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Jiyun Hong
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Baxter Abraham
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Robert Henning
- Center for Advanced Radiation Sources, The University of Chicago, Chicago, Illinois 60637, United States
| | - Irina Kosheleva
- Center for Advanced Radiation Sources, The University of Chicago, Chicago, Illinois 60637, United States
| | - Lin X. Chen
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
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15
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Anirudhan TS, Parvathy J. Novel Thiolated Chitosan-Polyethyleneglycol blend/Montmorillonite composite formulations for the oral delivery of insulin. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.bcdf.2018.02.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Cai C, Lin J, Lu Y, Zhang Q, Wang L. Polypeptide self-assemblies: nanostructures and bioapplications. Chem Soc Rev 2018; 45:5985-6012. [PMID: 27722321 DOI: 10.1039/c6cs00013d] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Polypeptide copolymers can self-assemble into diverse aggregates. The morphology and structure of aggregates can be varied by changing molecular architectures, self-assembling conditions, and introducing secondary components such as polymers and nanoparticles. Polypeptide self-assemblies have gained significant attention because of their potential applications as delivery vehicles for therapeutic payloads and as additives in the biomimetic mineralization of inorganics. This review article provides an overview of recent advances in nanostructures and bioapplications related to polypeptide self-assemblies. We highlight recent contributions to developing strategies for the construction of polypeptide assemblies with increasing complexity and novel functionality that are suitable for bioapplications. The relationship between the structure and properties of the polypeptide aggregates is emphasized. Finally, we briefly outline our perspectives and discuss the challenges in the field.
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Affiliation(s)
- Chunhua Cai
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Yingqing Lu
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Qian Zhang
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Liquan Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
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17
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Wang P, Yu N, Wang Y, Sun H, Yang Z, Zhou S. Co-delivery of PLK1-specific shRNA and doxorubicin via core-crosslinked pH-sensitive and redox ultra-sensitive micelles for glioma therapy. J Mater Chem B 2018; 6:112-124. [DOI: 10.1039/c7tb02160g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Anticancer drug delivery encounters many biological barriers, including mucosal barriers, nonspecific uptake and intracellular drug resistance.
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Affiliation(s)
- Pu Wang
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
| | - Nengwei Yu
- Department of Neurology
- Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital
- Chengdu
- China
| | - Yi Wang
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
| | - Huili Sun
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
| | - Zhenglin Yang
- Department of Neurology
- Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital
- Chengdu
- China
| | - Shaobing Zhou
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
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18
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Martín-Saldaña S, Palao-Suay R, Aguilar MR, García-Fernández L, Arévalo H, Trinidad A, Ramírez-Camacho R, San Román J. pH-sensitive polymeric nanoparticles with antioxidant and anti-inflammatory properties against cisplatin-induced hearing loss. J Control Release 2017; 270:53-64. [PMID: 29197586 DOI: 10.1016/j.jconrel.2017.11.032] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 11/17/2017] [Accepted: 11/20/2017] [Indexed: 11/28/2022]
Abstract
Polymeric nanoparticles (NPs) based on smart synthetic amphiphilic copolymers are used to transport and controlled release dexamethasone in the inner ear to protect against the ototoxic effect of cisplatin. The NPs were based on a mixture of two pseudo-block polymer drugs obtained by free radical polymerization: poly(VI-co-HEI) and poly(VP-co-MVE) or poly(VP-co-MTOS), being VI 1-vinylimidazole, VP N-vinylpyrrolidone, and HEI, MVE and MTOS the methacrylic derivatives of ibuprofen, α-tocopherol and α-tocopheryl succinate, respectively. The NPs were obtained by nanoprecipitation with appropriate hydrodynamic properties, and isoelectric points that matched the pH of inflamed tissue. The NPs were tested both in vitro (using HEI-OC1 cells) and in vivo (using a murine model) with good results. Although the concentration of dexamethasone administered in the NPs is around two orders of magnitude lower that the conventional treatment for intratympanic administration, the NPs protected from the cytotoxic effect of cisplatin when the combination of the appropriate properties in terms of size, zeta potential, encapsulation efficiency and isoelectric point were achieved. To the best of our knowledge this is the first time that pH sensitive NPs are used to protect from cisplatin-induced hearing loss by intratympanic administration.
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Affiliation(s)
- Sergio Martín-Saldaña
- Grupo de Biomateriales, Departamento de Nanomateriales Poliméricos y Biomateriales, Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, C/Juan de la Cierva, 3, 28006 Madrid, Spain; Ear Research Group, Hospital UniversitarioPuerta de Hierro Majadahonda, Health Research Institute Puerta de Hierro, Madrid, Spain
| | - Raquel Palao-Suay
- Grupo de Biomateriales, Departamento de Nanomateriales Poliméricos y Biomateriales, Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, C/Juan de la Cierva, 3, 28006 Madrid, Spain; Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Spain
| | - María Rosa Aguilar
- Grupo de Biomateriales, Departamento de Nanomateriales Poliméricos y Biomateriales, Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, C/Juan de la Cierva, 3, 28006 Madrid, Spain; Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Spain.
| | - Luis García-Fernández
- Grupo de Biomateriales, Departamento de Nanomateriales Poliméricos y Biomateriales, Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, C/Juan de la Cierva, 3, 28006 Madrid, Spain; Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Spain
| | - Humberto Arévalo
- Grupo de Biomateriales, Departamento de Nanomateriales Poliméricos y Biomateriales, Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, C/Juan de la Cierva, 3, 28006 Madrid, Spain
| | - Almudena Trinidad
- Ear Research Group, Hospital UniversitarioPuerta de Hierro Majadahonda, Health Research Institute Puerta de Hierro, Madrid, Spain
| | - Rafael Ramírez-Camacho
- Ear Research Group, Hospital UniversitarioPuerta de Hierro Majadahonda, Health Research Institute Puerta de Hierro, Madrid, Spain
| | - Julio San Román
- Grupo de Biomateriales, Departamento de Nanomateriales Poliméricos y Biomateriales, Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, C/Juan de la Cierva, 3, 28006 Madrid, Spain; Networking Biomedical Research Centre in Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, Spain
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19
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Biswas G, Jena BC, Maiti S, Samanta P, Mandal M, Dhara D. Photoresponsive Block Copolymer Prodrug Nanoparticles as Delivery Vehicle for Single and Dual Anticancer Drugs. ACS OMEGA 2017; 2:6677-6690. [PMID: 30023528 PMCID: PMC6045338 DOI: 10.1021/acsomega.7b00911] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 09/27/2017] [Indexed: 06/08/2023]
Abstract
In recent decades, drug delivery systems (DDSs) based on polymer nanoparticles have been explored due to their potential to deliver drugs with poor water solubility. Some of the limitations of nanoparticle-based DDSs can be overcome by developing an appropriate polymer prodrug. In this work, poly(NIPA)-b-poly(HMNPPA)-b-poly(PEGMA-stat-BA) was synthesized using reversible addition fragmentation chain transfer polymerization and Chlorambucil (Cbl), an anticancer drug, was conjugated to the copolymer via 3-(3-(hydroxymethyl)-4-nitrophenoxy)propyl acrylate (HMNPPA) units to prepare the prodrug. A few biotin acrylate (BA) units were also incorporated to bring potential targeting capability to the prodrug in the copolymer. This polymer prodrug formed spherical micellar nanoparticles in physiological conditions, which were characterized by dynamic light scattering and transmission electron microscopy measurements. The very low critical aggregation concentration (cac) (0.011 mg/mL) of the prodrug, as measured from Nile Red fluorescence, makes it stable against dilution. The polymer prodrug was shown to release Cbl on photoirradiation by soft UV (λ ≥ 365 nm) and laser (λ = 405 nm) light. The prodrug micellar nanoparticles were capable of encapsulating a second drug (doxorubicin, DOX) in their hydrophobic core. On photoirradiation with UV and laser light of the DOX-loaded nanoparticles, both Cbl and DOX were released. Light-induced breaking of photolabile ester bond resulted in the release of Cbl and caused disruption of the nanoparticles facilitating release of DOX. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay confirmed the nontoxicity of the polymers and effectiveness of the dual drug-loaded micellar nanoparticles toward cancer cells. Confocal microscopy results showed a better cellular internalization capability of the DOX-loaded nanoparticles in cancer cells, possibly due to the presence of cancer cell targeting biotin molecules in the polymer. This new photoresponsive potentially biocompatible and cancer cell-targeted polymer prodrug may be useful for delivery of single and/or multiple hydrophobic drugs.
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Affiliation(s)
- Gargi Biswas
- Department
of Chemistry and School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal 721302, India
| | - Bikash Chandra Jena
- Department
of Chemistry and School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal 721302, India
| | - Saikat Maiti
- Department
of Chemistry and School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal 721302, India
| | - Pousali Samanta
- Department
of Chemistry and School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal 721302, India
| | - Mahitosh Mandal
- Department
of Chemistry and School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal 721302, India
| | - Dibakar Dhara
- Department
of Chemistry and School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal 721302, India
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20
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Li S, Zhang Y, Liu H, Yu C, Zhou Y, Yan D. Asymmetric Polymersomes from an Oil-in-Oil Emulsion: A Computer Simulation Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:10084-10093. [PMID: 28857572 DOI: 10.1021/acs.langmuir.7b02411] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Asymmetric vesicles are valuable for understanding and mimicking cell and practical biomedicine applications. Recently, a very straightforward methodology for fabricating asymmetric polymersome was developed by Lodge's group through the coassembly of polystyrene-b-poly(ethylene oxide) (PS-b-PEO) and polybutadiene-b-poly(ethylene oxide) (PB-b-PEO) block copolymers at the interface of a polystyrene/polybutadiene/chloroform (PS/PB/CHCl3) emulsion. However, the in-depth microscopic mechanism for the formation of asymmetric polymersomes remains unclear. To address this issue, in this article, the coassembly process for the formation of the asymmetric polymersomes in Asano's experimental system was systematically investigated by employing a dissipative particle dynamics (DPD) simulation. Our results definitely demonstrate the formation of the asymmetric polymersomes such as that in the experiments and that the bilayer formed through the folding and crossing of the PEO blocks. Besides, from the microscopic view, three stages can be discerned in the formation process: (1) the formation of micelles, (2) the micelle diffusion to the interface, and (3) the micelle rearrangement at the interface to form an asymmetric polymersome. Meanwhile, the incompatibility among PS, PB, and PEO is proven to be the main driving force for asymmetric polymersome formation. Moreover, the effects of the order of addition of copolymers and the volume fraction of PEO blocks on the structure of the asymmetric polymersomes are also investigated. We find that the formation process is affected severely by the order of addition, and adding PS-b-PEO first can make the asymmetric bilayer more perfect. Not only that, but perfect asymmetric polymersomes can be formed only when the volume fraction of PEO (fPEO) is greater than 0.55. We believe the present work can extend the knowledge of the self-assembly of asymmetric polymersomes, especially with respect to the self-assembly mechanism.
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Affiliation(s)
- Shanlong Li
- School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai, China 200240
| | - Yinglin Zhang
- School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai, China 200240
| | - Hong Liu
- Institute of Theoretical Chemistry, State Key Laboratory of Supramolecular Structure and Materials, Jilin University , Changchun, China 130021
| | - Chunyang Yu
- School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai, China 200240
| | - Yongfeng Zhou
- School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai, China 200240
| | - Deyue Yan
- School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai, China 200240
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21
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Lysenko EA, Bilan RS, Chelushkin PS. Block-copolymer micelles with a interpolyelectrolyte crown. POLYMER SCIENCE SERIES C 2017. [DOI: 10.1134/s1811238217010076] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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22
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Fabrication of virus-like particles with strip-pattern surface: A two-step self-assembly approach. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2016.12.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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23
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Mandal A, Bisht R, Rupenthal ID, Mitra AK. Polymeric micelles for ocular drug delivery: From structural frameworks to recent preclinical studies. J Control Release 2017; 248:96-116. [PMID: 28087407 PMCID: PMC5319397 DOI: 10.1016/j.jconrel.2017.01.012] [Citation(s) in RCA: 279] [Impact Index Per Article: 39.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Revised: 01/06/2017] [Accepted: 01/08/2017] [Indexed: 01/14/2023]
Abstract
Effective intraocular drug delivery poses a major challenge due to the presence of various elimination mechanisms and physiological barriers that result in low ocular bioavailability after topical application. Over the past decades, polymeric micelles have emerged as one of the most promising drug delivery platforms for the management of ocular diseases affecting the anterior (dry eye syndrome) and posterior (age-related macular degeneration, diabetic retinopathy and glaucoma) segments of the eye. Promising preclinical efficacy results from both in-vitro and in-vivo animal studies have led to their steady progression through clinical trials. The mucoadhesive nature of these polymeric micelles results in enhanced contact with the ocular surface while their small size allows better tissue penetration. Most importantly, being highly water soluble, these polymeric micelles generate clear aqueous solutions which allows easy application in the form of eye drops without any vision interference. Enhanced stability, larger cargo capacity, non-toxicity, ease of surface modification and controlled drug release are additional advantages with polymeric micelles. Finally, simple and cost effective fabrication techniques render their industrial acceptance relatively high. This review summarizes structural frameworks, methods of preparation, physicochemical properties, patented inventions and recent advances of these micelles as effective carriers for ocular drug delivery highlighting their performance in preclinical studies.
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Affiliation(s)
- Abhirup Mandal
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, 2464 Charlotte Street, Kansas City, MO 64108, USA
| | - Rohit Bisht
- Buchanan Ocular Therapeutics Unit (BOTU), Department of Ophthalmology, New Zealand National Eye Centre, University of Auckland, Auckland, New Zealand
| | - Ilva D Rupenthal
- Buchanan Ocular Therapeutics Unit (BOTU), Department of Ophthalmology, New Zealand National Eye Centre, University of Auckland, Auckland, New Zealand
| | - Ashim K Mitra
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, 2464 Charlotte Street, Kansas City, MO 64108, USA.
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Li Y, Yuan B, Yang K, Zhang X, Yan B, Cao D. Counterintuitive cooperative endocytosis of like-charged nanoparticles in cellular internalization: computer simulation and experiment. NANOTECHNOLOGY 2017; 28:085102. [PMID: 28054516 DOI: 10.1088/1361-6528/aa56e0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The nanoparticles (NPs) functionalized with charged ligands are of particular significance due to their potential drug/gene delivery and biomedical applications. However, the molecular mechanism of endocytosis of the charged NPs by cells, especially the effect of the NP-NP and NP-biomembrane interactions on the internalization pathways is still poorly understood. In this work, we systematically investigate the internalization behaviors of the positively charged NPs by combining experiment technology and dissipative particle dynamics (DPD) simulation. We experimentally find an interesting but highly counterintuitive phenomenon, i.e. the multiple positively charged NPs prefer to enter cells cooperatively although the like-charged NPs have obvious electrostatic repulsion. Furthermore, we adopt the DPD simulation to confirm the experimental findings, and reveal that the mechanism of the cooperative endocytosis between like-charged NPs is definitely caused by the interplay of particle size, the charged ligand density on particle surface and local concentration of NPs. Importantly, we not only observe the normal cooperative endocytosis of like-charged NPs in cell biomembrane like neutral NP case, but also predict the 'bud' cooperative endocytosis of like-charged NPs which is absence in the neutral NP case. The results indicate that electrostatic repulsion between the positively charged nanoparticles plays an important role in the 'bud' cooperative endocytosis of like-charged NPs.
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Affiliation(s)
- Ye Li
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, People's Republic of China
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25
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Guan Z, Wang L, Lin J. Interaction Pathways between Plasma Membrane and Block Copolymer Micelles. Biomacromolecules 2017; 18:797-807. [PMID: 28125207 DOI: 10.1021/acs.biomac.6b01674] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In this work, the interactions between block copolymer micelles (BCMs) and plasma membranes were investigated by performing coarse-grained molecular dynamics (CGMD) simulations. Different binding strengths between the BCMs and the membranes were tested, and four interaction pathways were discovered: attachment, semiendocytosis, endocytosis, and fusion. Endocytosis was the most efficient way for the BCMs to be taken up, and fusion could lead to cytotoxicity. Unlike rigid particles, deformation of the BCMs strongly affected the interaction pathways. We examined the effects of changing the aggregation number of the BCMs (Nagg), the chain length of the polymer (Nb), and the chain stiffness of the hydrophobic block (ka), and we learned that smaller Nagg and lower Nb could lead to weaker cellular uptake capacities, whereas larger Nagg and higher Nb gave rise to higher cytotoxicities. Moreover, a weaker chain stiffness of the hydrophobic block could be more favorable for obtaining BCMs with higher internalization efficacies and lower cytotoxicities. The results of these simulations could aid in the design of BCMs with desirable cellular internalization capacities and lower cytotoxicities. Such BCMs could be useful in drug-delivery systems.
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Affiliation(s)
- Zhou Guan
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology , Shanghai 200237, China
| | - Liquan Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology , Shanghai 200237, China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology , Shanghai 200237, China
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Cagel M, Tesan FC, Bernabeu E, Salgueiro MJ, Zubillaga MB, Moretton MA, Chiappetta DA. Polymeric mixed micelles as nanomedicines: Achievements and perspectives. Eur J Pharm Biopharm 2017; 113:211-228. [PMID: 28087380 DOI: 10.1016/j.ejpb.2016.12.019] [Citation(s) in RCA: 222] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 12/01/2016] [Accepted: 12/04/2016] [Indexed: 10/20/2022]
Abstract
During the past few decades, polymeric micelles have raised special attention as novel nano-sized drug delivery systems for optimizing the treatment and diagnosis of numerous diseases. These nanocarriers exhibit several in vitro and in vivo advantages as well as increased stability and solubility to hydrophobic drugs. An interesting approach for optimizing these properties and overcoming some of their disadvantages is the combination of two or more polymers in order to assemble polymeric mixed micelles. This review article gives an overview on the current state of the art of several mixed micellar formulations as nanocarriers for drugs and imaging probes, evaluating their ongoing status (preclinical or clinical stage), with special emphasis on type of copolymers, physicochemical properties, in vivo progress achieved so far and toxicity profiles. Besides, the present article presents relevant research outcomes about polymeric mixed micelles as better drug delivery systems, when compared to polymeric pristine micelles. The reported data clearly illustrates the promise of these nanovehicles reaching clinical stages in the near future.
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Affiliation(s)
- Maximiliano Cagel
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Tecnología Farmacéutica I, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Fiorella C Tesan
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Física, Buenos Aires, Argentina
| | - Ezequiel Bernabeu
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Tecnología Farmacéutica I, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Maria J Salgueiro
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Física, Buenos Aires, Argentina
| | - Marcela B Zubillaga
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Física, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Marcela A Moretton
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Tecnología Farmacéutica I, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Diego A Chiappetta
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Tecnología Farmacéutica I, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
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27
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Preparation, Characterization, and Biological Evaluation of Poly(Glutamic Acid)-b-Polyphenylalanine Polymersomes. Polymers (Basel) 2016; 8:polym8060212. [PMID: 30979309 PMCID: PMC6432269 DOI: 10.3390/polym8060212] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 05/22/2016] [Accepted: 05/25/2016] [Indexed: 12/04/2022] Open
Abstract
Different types of amphiphilic macromolecular structures have been developed within recent decades to prepare the polymer particles considered as drug delivery systems. In the present research the series of amphiphilic block-copolymers containing poly(glutamatic acid) as hydrophilic, and polyphenylalanine as hydrophobic blocks was synthesized and characterized. Molecular weights for homo- and copolymers were determined by gel-permeation chromatography (GPC) and amino acid analysis, respectively. The copolymers obtained were applied for preparation of polymer particles. The specific morphology of prepared polymerosomes was proved using transmission electron microscopy (TEM). The influence on particle size of polymer concentration and pH used for self-assembly, as well as on the length of hydrophobic and hydrophilic blocks of applied copolymers, was studied by dynamic light scattering (DLS). Depending on different experimental conditions, the formation of nanoparticles with sizes from 60 to 350 nm was observed. The surface of polymersomes was modified with model protein (enzyme). No loss in biocatalytic activity was detected. Additionally, the process of encapsulation of model dyes was developed and the possibility of intracellular delivery of the dye-loaded nanoparticles was proved. Thus, the nanoparticles discussed can be considered for the creation of modern drug delivery systems.
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Qi H, Liu C, Long L, Ren Y, Zhang S, Chang X, Qian X, Jia H, Zhao J, Sun J, Hou X, Yuan X, Kang C. Blood Exosomes Endowed with Magnetic and Targeting Properties for Cancer Therapy. ACS NANO 2016; 10:3323-33. [PMID: 26938862 DOI: 10.1021/acsnano.5b06939] [Citation(s) in RCA: 321] [Impact Index Per Article: 40.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Exosomes are a class of naturally occurring nanoparticles that are secreted endogenously by mammalian cells. Clinical applications for exosomes remain a challenge because of their unsuitable donors, low scalability, and insufficient targeting ability. In this study, we developed a dual-functional exosome-based superparamagnetic nanoparticle cluster as a targeted drug delivery vehicle for cancer therapy. The resulting exosome-based drug delivery vehicle exhibits superparamagnetic behavior at room temperature, with a stronger response to an external magnetic field than individual superparamagnetic nanoparticles. These properties enable exosomes to be separated from the blood and to target diseased cells. In vivo studies using murine hepatoma 22 subcutaneous cancer cells showed that drug-loaded exosome-based vehicle delivery enhanced cancer targeting under an external magnetic field and suppressed tumor growth. Our developments overcome major barriers to the utility of exosomes for cancer application.
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Affiliation(s)
- Hongzhao Qi
- Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University , Tianjin 300072, China
| | - Chaoyong Liu
- Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Department of Neurosurgery, Tianjin Medical University General Hospital and Key Laboratory of Neurotrauma, Variation, and Regeneration, Ministry of Education and Tianjin Municipal Government , Tianjin 300052, China
| | - Lixia Long
- Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University , Tianjin 300072, China
| | - Yu Ren
- Tianjin Research Center of Basic Medical Science, Tianjin Medical University , Tianjin 300070, China
| | - Shanshan Zhang
- Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University , Tianjin 300072, China
| | - Xiaodan Chang
- Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University , Tianjin 300072, China
| | - Xiaomin Qian
- Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University , Tianjin 300072, China
| | - Huanhuan Jia
- Tianjin Research Center of Basic Medical Science, Tianjin Medical University , Tianjin 300070, China
| | - Jin Zhao
- Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University , Tianjin 300072, China
| | - Jinjin Sun
- Department of Surgery, Second Hospital of Tianjin Medical University , Tianjin 300211, China
| | - Xin Hou
- Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University , Tianjin 300072, China
| | - Xubo Yuan
- Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University , Tianjin 300072, China
| | - Chunsheng Kang
- Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Department of Neurosurgery, Tianjin Medical University General Hospital and Key Laboratory of Neurotrauma, Variation, and Regeneration, Ministry of Education and Tianjin Municipal Government , Tianjin 300052, China
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29
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Lin X, He X, Hu C, Chen Y, Mai Y, Lin S. Disk-like micelles with cylindrical pores from amphiphilic polypeptide block copolymers. Polym Chem 2016. [DOI: 10.1039/c6py00152a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
An unprecedented 2-dimensional disk-like micelle with cylindrical pores was achieved by self-assembly of amphiphilic block copolypeptides PEG-b-PBLG with an α-helical conformation of PBLG blocks.
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Affiliation(s)
- Xue Lin
- Department of Chemistry
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- China
| | - Xiaohua He
- Department of Chemistry
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- China
| | - Chaoqun Hu
- Department of Chemistry
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- China
| | - Yuxiang Chen
- Department of Chemistry
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- China
| | - Yiyong Mai
- School of Chemistry & Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Shaoliang Lin
- The Key Laboratory of Advanced Polymer Materials of Shanghai
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
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30
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Liu X, Hou Y, Tang X, Wu Q, Wu C, Yi J, Zhang G. Multicompartment micelles based on hierarchical co-assembly of PCL-b-PEG and PCL-b-P4VP diblock copolymers. RSC Adv 2016. [DOI: 10.1039/c5ra22299k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Multicompartment micelles with various morphologies were preparedviadirected stepwise self-assembly using pre-assembled subunits, which were first constructed through the co-assembly of two amphiphilic diblock copolymer: PCL-b-PEG and PCL-b-P4VP.
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Affiliation(s)
- Xue Liu
- Liaoning Province Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials
- College of Chemistry
- Liaoning University
- Shenyang
- P. R. China
| | - Yu Hou
- Liaoning Province Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials
- College of Chemistry
- Liaoning University
- Shenyang
- P. R. China
| | - Xiuping Tang
- Liaoning Province Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials
- College of Chemistry
- Liaoning University
- Shenyang
- P. R. China
| | - Qiuhua Wu
- Liaoning Province Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials
- College of Chemistry
- Liaoning University
- Shenyang
- P. R. China
| | - Chenglin Wu
- School of Pharmaceutical and Chemical Engineering
- Taizhou University
- Taizhou
- P. R. China
| | - Jie Yi
- Liaoning Province Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials
- College of Chemistry
- Liaoning University
- Shenyang
- P. R. China
| | - Guolin Zhang
- Liaoning Province Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials
- College of Chemistry
- Liaoning University
- Shenyang
- P. R. China
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31
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Fan X, Li Z, Loh XJ. Recent development of unimolecular micelles as functional materials and applications. Polym Chem 2016. [DOI: 10.1039/c6py01006g] [Citation(s) in RCA: 115] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Unimolecular micelles have high functionalities, encapsulation capabilities and site specific confinement abilities in various applications.
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Affiliation(s)
- Xiaoshan Fan
- School of Chemistry and Chemical Engineering
- Henan Normal University
- China
| | - Zibiao Li
- Institute of Materials Research and Engineering (IMRE)
- A*STAR
- Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE)
- A*STAR
- Singapore
- Department of Materials Science and Engineering
- National University of Singapore
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32
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Anirudhan TS, Parvathy J, Nair AS. Evaluation of micellar architecture based on functionalized chitosan for the in vitro release of an antibiotic. Des Monomers Polym 2015. [DOI: 10.1080/15685551.2015.1092010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Affiliation(s)
- T. S. Anirudhan
- Department of Chemistry, School of Physical and Mathematical Sciences, University of Kerala, Trivandrum, India
| | - J. Parvathy
- Department of Chemistry, School of Physical and Mathematical Sciences, University of Kerala, Trivandrum, India
| | - Anoop S. Nair
- Department of Chemistry, School of Physical and Mathematical Sciences, University of Kerala, Trivandrum, India
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33
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Kelly P, Anand P, Uvaydov A, Chakravartula S, Sherpa C, Pires E, O'Neil A, Douglas T, Holford M. Developing a Dissociative Nanocontainer for Peptide Drug Delivery. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2015; 12:12543-55. [PMID: 26473893 PMCID: PMC4626985 DOI: 10.3390/ijerph121012543] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 09/23/2015] [Accepted: 09/28/2015] [Indexed: 12/25/2022]
Abstract
The potency, selectivity, and decreased side effects of bioactive peptides have propelled these agents to the forefront of pharmacological research. Peptides are especially promising for the treatment of neurological disorders and pain. However, delivery of peptide therapeutics often requires invasive techniques, which is a major obstacle to their widespread application. We have developed a tailored peptide drug delivery system in which the viral capsid of P22 bacteriophage is modified to serve as a tunable nanocontainer for the packaging and controlled release of bioactive peptides. Recent efforts have demonstrated that P22 nanocontainers can effectively encapsulate analgesic peptides and translocate them across blood-brain-barrier (BBB) models. However, release of encapsulated peptides at their target site remains a challenge. Here a Ring Opening Metathesis Polymerization (ROMP) reaction is applied to trigger P22 nanocontainer disassembly under physiological conditions. Specifically, the ROMP substrate norbornene (5-Norbornene-2-carboxylic acid) is conjugated to the exterior of a loaded P22 nanocontainer and Grubbs II Catalyst is used to trigger the polymerization reaction leading to nanocontainer disassembly. Our results demonstrate initial attempts to characterize the ROMP-triggered release of cargo peptides from P22 nanocontainers. This work provides proof-of-concept for the construction of a triggerable peptide drug delivery system using viral nanocontainers.
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Affiliation(s)
- Patrick Kelly
- Hunter College and The Graduate Center, City University of New York, Belfer Research Building, 413 E. 69th Street, New York, NY 10021, USA.
| | - Prachi Anand
- Hunter College and The Graduate Center, City University of New York, Belfer Research Building, 413 E. 69th Street, New York, NY 10021, USA.
| | - Alexander Uvaydov
- Hunter College and The Graduate Center, City University of New York, Belfer Research Building, 413 E. 69th Street, New York, NY 10021, USA.
| | - Srinivas Chakravartula
- Hunter College and The Graduate Center, City University of New York, Belfer Research Building, 413 E. 69th Street, New York, NY 10021, USA.
| | - Chhime Sherpa
- Hunter College and The Graduate Center, City University of New York, Belfer Research Building, 413 E. 69th Street, New York, NY 10021, USA.
| | - Elena Pires
- Hunter College and The Graduate Center, City University of New York, Belfer Research Building, 413 E. 69th Street, New York, NY 10021, USA.
| | - Alison O'Neil
- Stem Cell and Regenerative Biology Department, Harvard University, 7 Divinity Ave, Cambridge, MA 02138, USA.
| | - Trevor Douglas
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN 47405, USA.
| | - Mandë Holford
- Hunter College and The Graduate Center, City University of New York, Belfer Research Building, 413 E. 69th Street, New York, NY 10021, USA.
- The American Museum of Natural History, Central Park West & 79th Street, New York, NY 10024, USA.
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34
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Gou J, Feng S, Xu H, Fang G, Chao Y, Zhang Y, Xu H, Tang X. Decreased Core Crystallinity Facilitated Drug Loading in Polymeric Micelles without Affecting Their Biological Performances. Biomacromolecules 2015; 16:2920-9. [DOI: 10.1021/acs.biomac.5b00826] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Jingxin Gou
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua
Road, Shenyang 110016, China
| | - Shuangshuang Feng
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua
Road, Shenyang 110016, China
| | - Helin Xu
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua
Road, Shenyang 110016, China
| | - Guihua Fang
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua
Road, Shenyang 110016, China
| | - Yanhui Chao
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua
Road, Shenyang 110016, China
| | - Yu Zhang
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua
Road, Shenyang 110016, China
| | - Hui Xu
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua
Road, Shenyang 110016, China
| | - Xing Tang
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua
Road, Shenyang 110016, China
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35
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Razmimanesh F, Amjad-Iranagh S, Modarress H. Molecular dynamics simulation study of chitosan and gemcitabine as a drug delivery system. J Mol Model 2015; 21:165. [PMID: 26044358 DOI: 10.1007/s00894-015-2705-2] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Accepted: 05/17/2015] [Indexed: 12/20/2022]
Abstract
By using molecular dynamics (MD) simulation, biodegradable biopolymer chitosan as a carrier for the drug gemcitabine was investigated and the effect of three initial drug concentrations (10, 40, and 80%) on its loading efficiency was studied. Then water was added to the systems of drug and biopolymer and the effects of water on the interactions of drug and chitosan and on the drug loading efficiency were examined. From the results it was found that the maximum loading of the drug occurred at 40% of the drug concentration. The radial distribution function calculations indicated that in the absence of water molecules, the drug molecules were located at shorter distance from chitosan and the loading efficiency of the drug in these systems was higher.
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Affiliation(s)
- Fariba Razmimanesh
- Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Hafez Avenue, Tehran, Iran
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36
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Hierarchical nanostructures self-assembled from a mixture system containing rod-coil block copolymers and rigid homopolymers. Sci Rep 2015; 5:10137. [PMID: 25965726 PMCID: PMC4428031 DOI: 10.1038/srep10137] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 03/30/2015] [Indexed: 01/28/2023] Open
Abstract
Self-assembly behavior of a mixture system containing rod-coil block copolymers and rigid homopolymers was investigated by using Brownian dynamics simulations. The morphologies of formed hierarchical self-assemblies were found to be dependent on the Lennard-Jones (LJ) interaction εRR between rod blocks, lengths of rod and coil blocks in copolymer, and mixture ratio of block copolymers to homopolymers. As the εRR value decreases, the self-assembled structures of mixtures are transformed from an abacus-like structure to a helical structure, to a plain fiber, and finally are broken into unimers. The order parameter of rod blocks was calculated to confirm the structure transition. Through varying the length of rod and coil blocks, the regions of thermodynamic stability of abacus, helix, plain fiber, and unimers were mapped. Moreover, it was discovered that two levels of rod block ordering exist in the helices. The block copolymers are helically wrapped on the homopolymer bundles to form helical string, while the rod blocks are twistingly packed inside the string. In addition, the simulation results are in good agreement with experimental observations. The present work reveals the mechanism behind the formation of helical (experimentally super-helical) structures and may provide useful information for design and preparation of the complex structures.
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37
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Xu JW, Xu F, Luo YL. Core crosslinked H-type poly(methacrylic acid)-block-hydroxyl terminated polybutadiene-block-poly(methacrylic acid) four-armed star block copolymer micelles for intercellular drug release. J BIOACT COMPAT POL 2015. [DOI: 10.1177/0883911515578871] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
H-type four-armed star block copolymers with hydroxyl-terminated polybutadiene as hydrophobic sections and poly(methacrylic acid) as hydrophilic fragments were synthesized through atom transform radical polymerization and the follow-up acidolysis, named PMAA2- b-HTPB- b-PMAA2. The core crosslinking reaction was conducted by ultraviolet light irradiation. 1H nuclear magnetic resonance, Fourier transform infrared, size exclusion chromatography, and thermal gravimetric analysis were adopted to confirm the chemical structure of the resulting copolymers. The effect of the ultraviolet light crosslinking on the physicochemical properties of the block copolymer micelles was investigated by fluorescent spectrometry, ultraviolet transmittance, dynamic light scattering, and transmission electron microscope measurements. The results showed that the crosslinking resulted in formation of the stable copolymer micelles and change in the physicochemical parameters, for example, lower critical micelle concentration and smaller micellar size than the uncrosslinked one. Drug loading and in vitro drug release disclosed that the crosslinked copolymer micelles had enhanced drug loading capacity and encapsulation efficiency, less drug leakage, and thus smaller harm to the normal cells but better therapy effect than the uncrosslinked counterpart by the aid of the pH-induced paclitaxel release. The copolymer micelles exhibited pH-dependent cytotoxicity, and therefore, they might be a promising drug target release carrier in biomedical applications.
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Affiliation(s)
- Jing-Wen Xu
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, P.R. China
| | - Feng Xu
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, P.R. China
| | - Yan-Ling Luo
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, P.R. China
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38
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Koseva NS, Rydz J, Stoyanova EV, Mitova VA. Hybrid protein-synthetic polymer nanoparticles for drug delivery. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2015; 98:93-119. [PMID: 25819277 DOI: 10.1016/bs.apcsb.2014.12.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Among the most common nanoparticulate systems, the polymeric nanocarriers have a number of key benefits, which give a great choice of delivery platforms. Nevertheless, polymeric nanoparticles possess some limitations that include use of toxic solvents in the production process, polymer degradation, drug leakage outside the diseased tissue, and polymer cytotoxicity. The combination of polymers of biological and synthetic origin is an appealing modern strategy for the production of novel nanocarriers with unprecedented properties. Proteins' interface can play an important role in determining bioactivity and toxicity and gives perspective for future development of the polymer-based nanoparticles. The design of hybrid constructs composed of synthetic polymer and biological molecules such as proteins can be considered as a straightforward tool to integrate a broad spectrum of properties and biofunctions into a single device. This review discusses hybrid protein-synthetic polymer nanoparticles with different structures and levels in complexity and functionality, in view of their applications as drug delivery systems.
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Affiliation(s)
- Neli S Koseva
- Institute of Polymers, Bulgarian Academy of Sciences, Sofia, Bulgaria.
| | - Joanna Rydz
- Institute of Polymers, Bulgarian Academy of Sciences, Sofia, Bulgaria; Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Zabrze, Poland
| | | | - Violeta A Mitova
- Institute of Polymers, Bulgarian Academy of Sciences, Sofia, Bulgaria
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39
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Amphiphilic poly(amino acid) based micelles applied to drug delivery: The in vitro and in vivo challenges and the corresponding potential strategies. J Control Release 2015; 199:84-97. [DOI: 10.1016/j.jconrel.2014.12.012] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Revised: 12/09/2014] [Accepted: 12/10/2014] [Indexed: 01/08/2023]
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40
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Microfluidic immobilization of polyglycerin-b-poly(ε-caprolactone) polymeric micelles in uniform zwitterionic hydrogel microparticles for molecular network-mediated drug release. Colloid Polym Sci 2015. [DOI: 10.1007/s00396-014-3493-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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41
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Yang T, Li F, Zhang H, Fan L, Qiao Y, Tan G, Zhang H, Wu H. Multifunctional pH-sensitive micelles for tumor-specific uptake and cellular delivery. Polym Chem 2015. [DOI: 10.1039/c4py01403k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dox in the LHRH-PEG-PHIS-Dox/Dox-TAT system could be transported into tumor cells via two pathways: LHRH receptor-mediated endocytosis and TAT-mediated nonendocytotic process.
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Affiliation(s)
- Tiehong Yang
- Department of Pharmaceutical Analysis
- School of Pharmacy
- Fourth Military Medical University
- Xi'an 710032
- China
| | - Fei Li
- Department of Pharmaceutical Analysis
- School of Pharmacy
- Fourth Military Medical University
- Xi'an 710032
- China
| | - Haitao Zhang
- Department of Pharmaceutical Analysis
- School of Pharmacy
- Fourth Military Medical University
- Xi'an 710032
- China
| | - Li Fan
- Department of Pharmaceutical Analysis
- School of Pharmacy
- Fourth Military Medical University
- Xi'an 710032
- China
| | - Youbei Qiao
- Department of Pharmaceutical Analysis
- School of Pharmacy
- Fourth Military Medical University
- Xi'an 710032
- China
| | - Guangguo Tan
- Department of Pharmaceutical Analysis
- School of Pharmacy
- Fourth Military Medical University
- Xi'an 710032
- China
| | - Haifei Zhang
- Department of Chemistry
- University of Liverpool
- LiverpoolL69 7ZD
- UK
| | - Hong Wu
- Department of Pharmaceutical Analysis
- School of Pharmacy
- Fourth Military Medical University
- Xi'an 710032
- China
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42
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Chen L, Jiang T, Cai C, Wang L, Lin J, Cao X. Polypeptide-based "smart" micelles for dual-drug delivery: a combination study of experiments and simulations. Adv Healthc Mater 2014; 3:1508-17. [PMID: 24652770 DOI: 10.1002/adhm.201300638] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 02/21/2014] [Indexed: 11/11/2022]
Abstract
A dual-drug-loaded micelle is designed and constructed from a mixture of poly(propylene oxide)-b-poly(γ-benzyl-l-glutamate)-b-poly(ethylene glycol) (PPO-b-PBLG-b-PEG) triblock terpolymers and two model drugs, doxorubicin (DOX) and naproxen (Nap). In the micelles, the DOX is chemically linked to the PBLG backbones through an acid-cleavable hydrazone bond, whereas the Nap is physically encapsulated in the cores. The drug loading and releasing behaviors of the dual-drug-loaded micelles as well as single drug-loaded micelles (DOX-conjugated or Nap-loaded micelles) are studied. The structures of micelles are characterized by means of microscopies and dynamic light scattering, and further examined by dissipative particle dynamics (DPD) simulations. It is revealed that the micelles possess a core-shell-corona structure in which the PPO/Nap, PBLG/DOX, and PEG aggregate to form the core, shell, and corona, respectively. In vitro studies reveal that the release of DOX and Nap is pH- and thermosensitive. Such drug releasing behaviors are also examined by DPD simulations, and more information regarding the mechanism is obtained. In addition, the bio-related properties such as cellular uptake of the micelles and biocompatibility of the deliveries are evaluated. The results show that the dual-drug-loaded micelles are biocompatible at normal physiological conditions and retain the anti-cancer efficiency.
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Affiliation(s)
- Lili Chen
- Shanghai Key Laboratory of Advanced Polymeric Materials; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Tao Jiang
- Shanghai Key Laboratory of Advanced Polymeric Materials; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Chunhua Cai
- Shanghai Key Laboratory of Advanced Polymeric Materials; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Liquan Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Xuguang Cao
- Shanghai Key Laboratory of Advanced Polymeric Materials; Key Laboratory for Ultrafine Materials of Ministry of Education; School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 China
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43
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Makino A. Morphology control of molecular assemblies prepared from bio-based amphiphilic polymers with a helical hydrophobic unit and application as nanocarriers for contrast agents and/or drug delivery. Polym J 2014. [DOI: 10.1038/pj.2014.73] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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44
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Cui J, Han Y, Jiang W. Asymmetric vesicle constructed by AB/CB diblock copolymer mixture and its behavior: a Monte Carlo study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:9219-9227. [PMID: 25029409 DOI: 10.1021/la501674a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Asymmetric vesicles constructed from AB/CB diblock copolymer mixture in a selective solvent for A and C blocks are studied using Monte Carlo simulation. The effects of the mixed ratio of the two diblock copolymers, the solution pH, and the hydrophilic chain length on the distributions of hydrophilic blocks on the surfaces of asymmetric vesicles are studied systematically. The simulation results show that asymmetric vesicle, in which the inner and outer surfaces are constructed from different hydrophilic blocks, can be obtained from AB/CB diblock copolymer mixture. The formation of ABC or CBA three-layer asymmetric vesicle depends on the composition of the mixture, the chain length of hydrophilic block, and the solution pH. The hydrophilic block with the same charge (induced by the solution pH), or longer chain length, or lower content in the mixture is more likely to distribute on the outer surface of the vesicle. Moreover, the transition from ABC to CBA three-layer asymmetric vesicle in which blocks C are charged can occur by adjusting the composition of the mixture. On the other hand, the investigations of the interfacial energy density of asymmetric vesicles elucidate the distribution regularity of hydrophilic blocks. When the hydrophilic chain lengths are equal, the difference between the outer and inner interfacial energies is the main factor that determines the asymmetric vesicle structures; that is, the distributions of different hydrophilic blocks on asymmetric vesicles always tend to gain the largest difference between the outer and inner interfacial energies. However, when the hydrophilic chain lengths are different, the chain conformational entropy becomes the main driving force for determining the distribution of hydrophilic blocks on asymmetric vesicles.
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Affiliation(s)
- Jie Cui
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
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45
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Hu G, Fan X, Xu B, Zhang D, Hu Z. Facile synthesis and characterization of novel biodegradable amphiphilic block copolymers bearing pendant hydroxyl groups. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 43:207-13. [PMID: 25175206 DOI: 10.1016/j.msec.2014.07.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Revised: 06/04/2014] [Accepted: 07/03/2014] [Indexed: 10/25/2022]
Abstract
Novel amphiphilic block copolymers bearing pendant hydroxyl groups polylactide-b-poly(3,3-bis(Hydroxymethyl-triazolylmethyl) oxetane)-b-polylactide (PLA-b-PHMTYO-b-PLA) were synthesized via a facile and efficient method. First, the block copolymer intermediates polylactide-b-poly(3,3-Diazidomethyloxetane)-b-polylactide (PLA-b-PBAMO-b-PLA) were synthesized through ring-opening polymerization of lactide using PBAMO as a macroinitiator. Following "Click" reaction of PLA-b-PBAMO-b-PLA with propargyl alcohol provided the targeted amphiphilic block copolymers PLA-b-PHMTYO-b-PLA with pendant hydroxyl groups. The composition and structure of prepared copolymers were characterized by (1)H nuclear magnetic resonance ((1)H NMR) spectroscopy, Fourier transform infrared (FT-IR) and gel permeation chromatography (GPC). The self-assembly behavior of the copolymers in water was investigated by transmission electron microscope (TEM), dynamic light scattering (DLS) and static light scattering (SLS). The results showed that the novel copolymers PLA-b-PHMTYO-b-PLA self-assembled into spherical micelles with diameters ranging from 100 nm to 200 nm in aqueous solution. These copolymers also exhibited low critical micellar concentrations (CMC: 6.9 × 10(-4)mg/mL and 3.9 × 10(-5)mg/mL, respectively). In addition, the in vitro cytotoxicity of these copolymers was determined in the presence of L929 cells. The results showed that the block copolymers PLA-b-PHMTYO-b-PLA exhibited better biocompatibility. Therefore, these well-defined copolymers are expected to find some applications in drug delivery or tissue engineering.
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Affiliation(s)
- Gaicen Hu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, PR China
| | - Xiaoshan Fan
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, PR China
| | - Bingcan Xu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, PR China
| | - Delong Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, PR China
| | - Zhiguo Hu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, PR China.
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46
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Barthel MJ, Rinkenauer AC, Wagner M, Mansfeld U, Hoeppener S, Czaplewska JA, Gottschaldt M, Träger A, Schacher FH, Schubert US. Small but Powerful: Co-Assembly of Polyether-Based Triblock Terpolymers into Sub-30 nm Micelles and Synergistic Effects on Cellular Interactions. Biomacromolecules 2014; 15:2426-39. [DOI: 10.1021/bm5002894] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Markus J. Barthel
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
- Dutch
Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Alexandra C. Rinkenauer
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Michael Wagner
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Ulrich Mansfeld
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Stephanie Hoeppener
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Justyna A. Czaplewska
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Michael Gottschaldt
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Anja Träger
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Felix H. Schacher
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Ulrich S. Schubert
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
- Dutch
Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
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47
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Hybrid polymeric micelles based on bioactive polypeptides as pH-responsive delivery systems against melanoma. Biomaterials 2014; 35:7008-21. [PMID: 24875757 DOI: 10.1016/j.biomaterials.2014.04.117] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Accepted: 04/29/2014] [Indexed: 11/20/2022]
Abstract
The bioactive polymer poly(L-glutamic acid)n-b-poly(D, L-lactic acid)m was synthesized and used to form doxorubicin-loaded hybrid polymeric micelles to treat melanoma. These polymers exhibited pH-responsive changes in conformation, which controlled the diverse functionalities of the micelles. During circulation, poly(L-glutamic acid)n-b-poly(D, L-lactic acid)m protected Tat peptides on the micelles from proteolysis. Under tumor-acidic conditions, polymers with shorter poly(l-glutamic acid) blocks underwent a conformational change to form channels that accelerated the release of doxorubicin. The conformational change also exposed the Tat peptides to tumor cells, thereby promoting cellular internalization of the micelles. Enhanced cellular uptake of the micelles induced significant apoptosis of A375 melanoma cells in tumor-acidic conditions. In vivo studies demonstrated that the micelles with shorter poly(L-glutamic acid) blocks could effectively accumulate in tumor tissues, suppress tumor growth and help maintain the body weight of tumor-bearing mice. However, micelles with longer poly(l-glutamic acid) blocks did not undergo a conformational change under acidic conditions and performed poorly in both in vitro and in vivo evaluations. Our work provides a strategy for applying bioactive polymers to the rational construction of pH-responsive delivery systems for solid tumors and lends insight into possible conformational effects on the bioactivity of drug carriers.
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48
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Zhao L, Wu C, Wang F, Ying A, Xu C, Liu S. Fabrication of biofunctional complex micelles with tunable structure for application in controlled drug release. Colloid Polym Sci 2014. [DOI: 10.1007/s00396-014-3230-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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49
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Sethi M, Sukumar R, Karve S, Werner ME, Wang EC, Moore DT, Kowalczyk SR, Zhang L, Wang AZ. Effect of drug release kinetics on nanoparticle therapeutic efficacy and toxicity. NANOSCALE 2014; 6:2321-2327. [PMID: 24418914 PMCID: PMC3940272 DOI: 10.1039/c3nr05961h] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The effects of nanoparticle (NP) properties, such as size, shape and surface charge, on their efficacy and toxicity have been studied extensively. However, the effect of controlled drug release on NP efficacy and toxicity has not been thoroughly evaluated in vivo. Our study aims to fill this knowledge gap. A key challenge in characterizing the relationship between drug release and therapeutic ratio is to fabricate NPs that differ only in their drug release profile but are otherwise identical. To overcome this challenge, we developed crosslinkable lipid shell (CLS) NPs, where the drug release kinetics can be modulated without changing any other NP property. Using CLS NPs with wortmannin and docetaxel as model drugs, we determined the relationship between the release kinetics and therapeutic efficacy and toxicity of the drugs. We have determined that drug release kinetics can affect the therapeutic efficacy of NP docetaxel and NP wortmannin in vitro and in vivo. Our study also demonstrates that a decrease in drug release kinetics can result in a decrease in the hepatotoxicity of CLS NP wortmannin. Using two model drugs, the current findings provide the first direct evidence that NP drug release profile is a critical factor in determining the NP therapeutics' efficacy and toxicity in vivo.
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Affiliation(s)
- Manish Sethi
- Carolina Center for Cancer Nanotechnology Excellence, Laboratory of Nano- and Translational Medicine, Department of Radiation Oncology, Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, NC 27599, USA
| | - Rohit Sukumar
- Carolina Center for Cancer Nanotechnology Excellence, Laboratory of Nano- and Translational Medicine, Department of Radiation Oncology, Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, NC 27599, USA
| | - Shrirang Karve
- Carolina Center for Cancer Nanotechnology Excellence, Laboratory of Nano- and Translational Medicine, Department of Radiation Oncology, Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, NC 27599, USA
| | - Michael E. Werner
- Carolina Center for Cancer Nanotechnology Excellence, Laboratory of Nano- and Translational Medicine, Department of Radiation Oncology, Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, NC 27599, USA
| | - Edina C. Wang
- Carolina Center for Cancer Nanotechnology Excellence, Laboratory of Nano- and Translational Medicine, Department of Radiation Oncology, Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, NC 27599, USA
| | - Dominic T. Moore
- Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill, NC 27599, USA
| | - Sonya R. Kowalczyk
- Carolina Center for Cancer Nanotechnology Excellence, Laboratory of Nano- and Translational Medicine, Department of Radiation Oncology, Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, NC 27599, USA
| | - Liangfang Zhang
- Department of Nanoengineering, Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093, USA
| | - Andrew Z. Wang
- Carolina Center for Cancer Nanotechnology Excellence, Laboratory of Nano- and Translational Medicine, Department of Radiation Oncology, Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, NC 27599, USA
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50
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Zelzer M, Heise A. Terpolymerization kinetics of amino acid N‐carboxy anhydrides. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27109] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mischa Zelzer
- Department of Chemical Engineering and ChemistryTechnical University EindhovenDen Dolech 2, 5612 AZEindhoven The Netherlands
| | - Andreas Heise
- Department of Chemical Engineering and ChemistryTechnical University EindhovenDen Dolech 2, 5612 AZEindhoven The Netherlands
- School of Chemical Sciences, Dublin City UniversityGlasnevin Dublin 9 Ireland
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