1
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Pula W, Ganugula R, Esposito E, Ravi Kumar MNV, Arora M. Engineered urolithin A-laden functional polymer-lipid hybrid nanoparticles prevent cisplatin-induced proximal tubular injury in vitro. Eur J Pharm Biopharm 2024; 200:114334. [PMID: 38768764 DOI: 10.1016/j.ejpb.2024.114334] [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: 03/29/2024] [Revised: 05/15/2024] [Accepted: 05/17/2024] [Indexed: 05/22/2024]
Abstract
Functional polymer-lipid hybrid nanoparticles (H-NPs) are a promising class of nanocarriers that combine the benefits of polymer and lipid nanoparticles, offering biocompatibility, structural stability, high loading capacity, and, most importantly, superior surface functionalization. Here, we report the synthesis and design of highly functional H-NPs with specificity toward the transferrin receptor (TfR), using a small molecule ligand, gambogic acid (GA). A fluorescence study revealed the molecular orientation of H-NPs, where the lipid-dense core is surrounded by a polymer exterior, functionalized with GA. Urolithin A, an immunomodulator and anti-inflammatory agent, served as a model drug-like compound to prepare H-NPs via traditional emulsion-based techniques, where H-NPs led to smaller particles (132 nm) and superior entrapment efficiencies (70 % at 10 % drug loading) compared to GA-conjugated polymeric nanoparticles (P-NPs) (157 nm and 52 % entrapment efficiency) and solid lipid nanoparticles (L-NPs) (186 nm and 29 % entrapment efficiency). H-NPs showed superior intracellular accumulation compared to individual NPs using human small intestinal epithelial (FHs 74) cells. The in vitro efficacy was demonstrated by flow cytometry analysis, in which UA-laden H-NPs showed excellent anti-inflammatory properties in cisplatin-induced injury in healthy human proximal tubular cell (HK2) model by decreasing the TLR4, NF-κβ, and IL-β expression. This preliminary work highlights the potential of H-NPs as a novel functional polymer-lipid drug delivery system, establishing the foundation for future research on its therapeutic potential in addressing chemotherapy-induced acute kidney injury in cancer patients.
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Affiliation(s)
- W Pula
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Fossato di Mortara, 19-44121 Ferrara, Italy; The Center for Convergent Bioscience and Medicine (CCBM), The University of Alabama, Tuscaloosa, AL 35401, United States
| | - R Ganugula
- The Center for Convergent Bioscience and Medicine (CCBM), The University of Alabama, Tuscaloosa, AL 35401, United States; Division of Translational Science and Medicine, College of Community Health Sciences, The University of Alabama, Tuscaloosa, AL 35401, United States; Alabama Life Research Institute, The University of Alabama, Tuscaloosa, AL 35401, United States; Department of Biological Sciences, The University of Alabama, SEC 1325, Tuscaloosa, AL 35487, United States
| | - E Esposito
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Fossato di Mortara, 19-44121 Ferrara, Italy
| | - M N V Ravi Kumar
- The Center for Convergent Bioscience and Medicine (CCBM), The University of Alabama, Tuscaloosa, AL 35401, United States; Division of Translational Science and Medicine, College of Community Health Sciences, The University of Alabama, Tuscaloosa, AL 35401, United States; Alabama Life Research Institute, The University of Alabama, Tuscaloosa, AL 35401, United States; Department of Biological Sciences, The University of Alabama, SEC 1325, Tuscaloosa, AL 35487, United States; Chemical and Biological Engineering, University of Alabama, SEC 3448, Tuscaloosa, AL 35487, United States; Center for Free Radical Biology, University of Alabama at Birmingham, Birmingham, AL 35294, United States; Nephrology Research and Training Center, Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, United States
| | - M Arora
- The Center for Convergent Bioscience and Medicine (CCBM), The University of Alabama, Tuscaloosa, AL 35401, United States; Division of Translational Science and Medicine, College of Community Health Sciences, The University of Alabama, Tuscaloosa, AL 35401, United States; Alabama Life Research Institute, The University of Alabama, Tuscaloosa, AL 35401, United States; Department of Biological Sciences, The University of Alabama, SEC 1325, Tuscaloosa, AL 35487, United States.
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2
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He Y, Li L, Ding M, Li W. Flow-driven translocation of comb-like copolymer micelles through a nanochannel. SOFT MATTER 2023; 19:9166-9172. [PMID: 37990911 DOI: 10.1039/d3sm01241g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Using hybrid lattice-Boltzmann molecular dynamics simulations, we investigate the flow-driven translocation of comb-like copolymer micelles through a nanochannel, in particular, making a detailed comparison with micelles formed by the corresponding diblock copolymers. Our results demonstrate that the critical flow flux of micelles formed by the comb-like copolymers is higher than that of micelles formed by the corresponding diblock copolymers, which is more pronounced with increasing side chain lengths or grafting densities, as evidenced by the free energy computed by self-consistent field theory. Our work indicates that the impact of chain topology on the stability of micelles, especially with the same size, can be well characterized using the critical flow fluxes, which provides a theoretical basis for designing self-assembling micelles for various applications.
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Affiliation(s)
- Yingjie He
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
| | - Luyang Li
- State Key Laboratory of Molecular Engineering of Polymers, Key Laboratory of Computational Physical Sciences, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Mingming Ding
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Jieyang 515200, China
| | - Weihua Li
- State Key Laboratory of Molecular Engineering of Polymers, Key Laboratory of Computational Physical Sciences, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
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3
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Rao WH, Yu L, Ding JD. Stride Strategy to Enable a Quasi-ergodic Search of Reaction Pathways Demonstrated by Ring-opening Polymerization of Cyclic Esters. CHINESE JOURNAL OF POLYMER SCIENCE 2023. [DOI: 10.1007/s10118-023-2930-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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4
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Puchkov AA, Sedush NG, Buzin AI, Bozin TN, Bakirov AV, Borisov RS, Chvalun SN. Synthesis and characterization of well-defined star-shaped poly(L-lactides). POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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5
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Fu H, Gong S. Self‐dispersible waterborne comb‐like polyester with alkali resistance and pigment‐dispersion capability. J Appl Polym Sci 2022. [DOI: 10.1002/app.52747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hao Fu
- College of Chemistry and Molecular Sciences Wuhan University Wuhan Hubei China
| | - Shu‐ling Gong
- College of Chemistry and Molecular Sciences Wuhan University Wuhan Hubei China
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6
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Structure determination of hyperbranched polyester BOLTORN H40 by 1D- and 2D-NMR spectroscopy. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04274-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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7
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Galanopoulo P, Gil N, Gigmes D, Lefay C, Guillaneuf Y, Lages M, Nicolas J, Lansalot M, D'Agosto F. One-Step Synthesis of Degradable Vinylic Polymer-Based Latexes via Aqueous Radical Emulsion Polymerization. Angew Chem Int Ed Engl 2022; 61:e202117498. [PMID: 35100474 DOI: 10.1002/anie.202117498] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Indexed: 11/07/2022]
Abstract
Aqueous emulsion copolymerizations of dibenzo[c,e]oxepane-5-thione (DOT) were performed with n-butyl acrylate (BA), styrene (S) and a combination of both. In all cases, stable latexes were obtained in less than two hours under conventional conditions; that is in the presence of sodium dodecyl sulfate (SDS) used as surfactant and potassium persulfate (KPS) as initiator. A limited solubility of DOT in BA was observed compared to S, yielding to a more homogeneous integration of DOT units in the PS latex. In both cases, the copolymer could be easily degraded under basic conditions. Emulsion terpolymerization between DOT, BA and S allowed us to produce stable latexes not only composed of degradable chains but also featuring a broad range of glass transition temperatures.
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Affiliation(s)
- Paul Galanopoulo
- Univ Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5128, Catalysis, Polymerization, Processes and Materials (CP2M), 43 Bd du 11 novembre 1918, 69616, Villeurbanne, France
| | - Noémie Gil
- Aix-Marseille-Univ, Institut de Chimie Radicalaire, Equipe CROPS, CNRS, UMR 7273, Avenue Escadrille Normandie Niemen, 13397, Marseille, France
| | - Didier Gigmes
- Aix-Marseille-Univ, Institut de Chimie Radicalaire, Equipe CROPS, CNRS, UMR 7273, Avenue Escadrille Normandie Niemen, 13397, Marseille, France
| | - Catherine Lefay
- Aix-Marseille-Univ, Institut de Chimie Radicalaire, Equipe CROPS, CNRS, UMR 7273, Avenue Escadrille Normandie Niemen, 13397, Marseille, France
| | - Yohann Guillaneuf
- Aix-Marseille-Univ, Institut de Chimie Radicalaire, Equipe CROPS, CNRS, UMR 7273, Avenue Escadrille Normandie Niemen, 13397, Marseille, France
| | - Maëlle Lages
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 5 rue Jean Baptiste Clément, 92296, Châtenay-Malabry, France
| | - Julien Nicolas
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 5 rue Jean Baptiste Clément, 92296, Châtenay-Malabry, France
| | - Muriel Lansalot
- Univ Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5128, Catalysis, Polymerization, Processes and Materials (CP2M), 43 Bd du 11 novembre 1918, 69616, Villeurbanne, France
| | - Franck D'Agosto
- Univ Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5128, Catalysis, Polymerization, Processes and Materials (CP2M), 43 Bd du 11 novembre 1918, 69616, Villeurbanne, France
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8
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Yang Zhao, Jia X, Li L, Jiang X, Xu R. Effects of Surface Modified Graphene Oxide on the Cure Kinetics of Warm-Mixed Epoxy-Asphalt. POLYMER SCIENCE SERIES B 2022. [DOI: 10.1134/s1560090422020154] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Galanopoulo P, Gil N, Gigmes D, Lefay C, Guillaneuf Y, Lages M, Nicolas J, Lansalot M, D'Agosto F. One‐Step Synthesis of Degradable Vinylic Polymer‐Based Latexes via Aqueous Radical Emulsion Polymerization. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Paul Galanopoulo
- Univ Lyon, Université Claude Bernard Lyon 1 CPE Lyon, CNRS, UMR 5128 Catalysis, Polymerization, Processes and Materials (CP2M) 43 Bd du 11 novembre 1918 69616 Villeurbanne France
| | - Noémie Gil
- Aix-Marseille-Univ Institut de Chimie Radicalaire, Equipe CROPS, CNRS, UMR 7273 Avenue Escadrille Normandie Niemen 13397 Marseille France
| | - Didier Gigmes
- Aix-Marseille-Univ Institut de Chimie Radicalaire, Equipe CROPS, CNRS, UMR 7273 Avenue Escadrille Normandie Niemen 13397 Marseille France
| | - Catherine Lefay
- Aix-Marseille-Univ Institut de Chimie Radicalaire, Equipe CROPS, CNRS, UMR 7273 Avenue Escadrille Normandie Niemen 13397 Marseille France
| | - Yohann Guillaneuf
- Aix-Marseille-Univ Institut de Chimie Radicalaire, Equipe CROPS, CNRS, UMR 7273 Avenue Escadrille Normandie Niemen 13397 Marseille France
| | - Maëlle Lages
- Université Paris-Saclay CNRS, Institut Galien Paris-Saclay 5 rue Jean Baptiste Clément 92296 Châtenay-Malabry France
| | - Julien Nicolas
- Université Paris-Saclay CNRS, Institut Galien Paris-Saclay 5 rue Jean Baptiste Clément 92296 Châtenay-Malabry France
| | - Muriel Lansalot
- Univ Lyon, Université Claude Bernard Lyon 1 CPE Lyon, CNRS, UMR 5128 Catalysis, Polymerization, Processes and Materials (CP2M) 43 Bd du 11 novembre 1918 69616 Villeurbanne France
| | - Franck D'Agosto
- Univ Lyon, Université Claude Bernard Lyon 1 CPE Lyon, CNRS, UMR 5128 Catalysis, Polymerization, Processes and Materials (CP2M) 43 Bd du 11 novembre 1918 69616 Villeurbanne France
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10
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He M, Wang R, Wan P, Wang H, Cheng Y, Miao P, Wei Z, Leng X, Li Y, Du J, Fan J, Sun W, Peng X. Biodegradable Ru-Containing Polycarbonate Micelles for Photoinduced Anticancer Multitherapeutic Agent Delivery and Phototherapy Enhancement. Biomacromolecules 2022; 23:1733-1744. [PMID: 35107271 DOI: 10.1021/acs.biomac.1c01651] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The lack of selectivity between tumor and healthy cells, along with inefficient reactive oxygen species production in solid tumors, are two major impediments to the development of anticancer Ru complexes. The development of photoinduced combination therapy based on biodegradable polymers that can be light activated in the "therapeutic window" would be beneficial for enhancing the therapeutic efficacy of Ru complexes. Herein, a biodegradable Ru-containing polymer (poly(DCARu)) is developed, in which two different therapeutics (the drug and the Ru complex) are rationally integrated and then conjugated to a diblock copolymer (MPEG-b-PMCC) containing hydrophilic poly(ethylene glycol) and cyano-functionalized polycarbonate with good degradability and biocompatibility. The polymer self-assembles into micelles with high drug loading capacity, which can be efficiently internalized into tumor cells. Red light induces the generation of singlet oxygen and the release of anticancer drug-Ru complex conjugates from poly(DCARu) micelles, hence inhibiting tumor cell growth. Furthermore, the phototherapy of polymer micelles demonstrates remarkable inhibition of tumor growth in vivo. Meanwhile, polymer micelles exhibit good biocompatibility with blood and healthy tissues, which opens up opportunities for multitherapeutic agent delivery and enhanced phototherapy.
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Affiliation(s)
- Maomao He
- State Key Laboratory of Fine Chemicals, Liaoning key Laboratory of Polymer Science and Engineering, Dalian University of Technology, Dalian 116024, China
| | - Ran Wang
- State Key Laboratory of Fine Chemicals, Liaoning key Laboratory of Polymer Science and Engineering, Dalian University of Technology, Dalian 116024, China
| | - Peiyuan Wan
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Hexiang Wang
- State Key Laboratory of Fine Chemicals, Liaoning key Laboratory of Polymer Science and Engineering, Dalian University of Technology, Dalian 116024, China
| | - Yi Cheng
- State Key Laboratory of Fine Chemicals, Liaoning key Laboratory of Polymer Science and Engineering, Dalian University of Technology, Dalian 116024, China
| | - Pengcheng Miao
- State Key Laboratory of Fine Chemicals, Liaoning key Laboratory of Polymer Science and Engineering, Dalian University of Technology, Dalian 116024, China
| | - Zhiyong Wei
- State Key Laboratory of Fine Chemicals, Liaoning key Laboratory of Polymer Science and Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xuefei Leng
- State Key Laboratory of Fine Chemicals, Liaoning key Laboratory of Polymer Science and Engineering, Dalian University of Technology, Dalian 116024, China
| | - Yang Li
- State Key Laboratory of Fine Chemicals, Liaoning key Laboratory of Polymer Science and Engineering, Dalian University of Technology, Dalian 116024, China
| | - Jianjun Du
- State Key Laboratory of Fine Chemicals, Liaoning key Laboratory of Polymer Science and Engineering, Dalian University of Technology, Dalian 116024, China.,Ningbo Institute of Dalian University of Technology, Ningbo 315016, China
| | - Jiangli Fan
- State Key Laboratory of Fine Chemicals, Liaoning key Laboratory of Polymer Science and Engineering, Dalian University of Technology, Dalian 116024, China.,Ningbo Institute of Dalian University of Technology, Ningbo 315016, China
| | - Wen Sun
- State Key Laboratory of Fine Chemicals, Liaoning key Laboratory of Polymer Science and Engineering, Dalian University of Technology, Dalian 116024, China.,Ningbo Institute of Dalian University of Technology, Ningbo 315016, China
| | - Xiaojun Peng
- State Key Laboratory of Fine Chemicals, Liaoning key Laboratory of Polymer Science and Engineering, Dalian University of Technology, Dalian 116024, China
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11
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Plajer AJ, Williams CK. Heterocycle/Heteroallene Ring‐Opening Copolymerization: Selective Catalysis Delivering Alternating Copolymers. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202104495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alex J. Plajer
- Oxford Chemistry Chemical Research Laboratory 12 Mansfield Road Oxford OX1 3TA UK
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12
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Scoponi G, Francini N, Paradiso V, Donno R, Gennari A, d’Arcy R, Capacchione C, Athanassiou A, Tirelli N. Versatile Preparation of Branched Polylactides by Low-Temperature, Organocatalytic Ring-Opening Polymerization in N-Methylpyrrolidone and Their Surface Degradation Behavior. Macromolecules 2021; 54:9482-9495. [PMID: 34720189 PMCID: PMC8552446 DOI: 10.1021/acs.macromol.1c01503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 09/16/2021] [Indexed: 11/28/2022]
Abstract
We describe how the organocatalytic, 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU)-based lactide ring-opening polymerization can be effectively performed in a very polar solvent, N-methylpyrrolidone (NMP). Due to a low ceiling temperature, this "living" mechanism has been unreported to date, but we here demonstrate that through a combination of low temperature and repeated monomer additions (starve-fed process), this mechanism enables the generation of a plethora of multifunctional homo- and (stereo)block-poly(lactide)s (PLAs) with exquisite control of the molecular weight dispersity (typically Đ < 1.1) and topology (from linear through 4-, 6-, or 8-armed stars and up to ∼140 armed combs). They are scarcely obtainable or inaccessible through more classical synthetic methods due to the poor solubility of multifunctional initiators (polyols) in most organic solvents and monomer melts. In these precisely designed structures, branching significantly altered the nature of the materials' hydrolytic degradation, allowing them to acquire a pronounced surface character (as opposed to the bulk degradation of linear polymers). Finally, we have assessed the amenability of this method to in situ block copolymerization by using the tacticity of PLLA blocks in PLLA-b-PDLLA versus PDLLA-b-PLLA (L-LA polymerized before or after DL-LA) as a sensitive method to detect (stereochemical) defects.
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Affiliation(s)
- Giulia Scoponi
- Smart
Materials, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- DIBRIS, University of Genova, Via Opera Pia 13, 16145 Genova, Italy
| | - Nora Francini
- Laboratory
of Polymers Biomaterials, Istituto Italiano
di Tecnologia, Via Morego
30, 16163 Genoa, Italy
| | - Veronica Paradiso
- Department
of Chemistry and Biology “Adolfo Zambelli”, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Roberto Donno
- Laboratory
of Polymers Biomaterials, Istituto Italiano
di Tecnologia, Via Morego
30, 16163 Genoa, Italy
| | - Arianna Gennari
- Laboratory
of Polymers Biomaterials, Istituto Italiano
di Tecnologia, Via Morego
30, 16163 Genoa, Italy
| | - Richard d’Arcy
- Laboratory
of Polymers Biomaterials, Istituto Italiano
di Tecnologia, Via Morego
30, 16163 Genoa, Italy
| | - Carmine Capacchione
- Department
of Chemistry and Biology “Adolfo Zambelli”, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | | | - Nicola Tirelli
- Laboratory
of Polymers Biomaterials, Istituto Italiano
di Tecnologia, Via Morego
30, 16163 Genoa, Italy
- School
of Health Sciences, University of Manchester, Oxford Road, M13 9PL Manchester, U.K.
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13
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Sedush NG, Kadina YA, Razuvaeva EV, Puchkov AA, Shirokova EM, Gomzyak VI, Kalinin KT, Kulebyakina AI, Chvalun SN. Nanoformulations of Drugs Based on Biodegradable Lactide Copolymers with Various Molecular Structures and Architectures. NANOBIOTECHNOLOGY REPORTS 2021. [PMCID: PMC8431958 DOI: 10.1134/s2635167621040121] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Modern pharmaceutics are actively developing towards the design of targeted drugs. The development of selectively acting formulations requires the creation of smart delivery systems based on carriers that would first find the target cells and enter them and then release the active substance locally. Nanoparticles of biocompatible and biodegradable polymers can be effectively used as such carriers. Flexible regulation of the molecular structure and architecture of polymers, as well as the modification of nanoparticles with vector molecules, allows one to construct carrier particles for the development of nanoformulations for active agents of various nature. This review presents the main approaches to the design of nanoformulations for targeted delivery, describes the methods for the preparation and study of nanoparticles based on hydrophobic and amphiphilic biodegradable lactide polymers, and discusses the effect of the molecular structure and preparation conditions on the characteristics of nanoparticles in detail. Some results of research in this area of the Kurchatov complex of NBIСS nature-like technologies are also presented.
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Affiliation(s)
- N. G. Sedush
- Kurchatov Institute National Research Center, 123098 Moscow, Russia
| | - Y. A. Kadina
- Kurchatov Institute National Research Center, 123098 Moscow, Russia
| | - E. V. Razuvaeva
- Kurchatov Institute National Research Center, 123098 Moscow, Russia
| | - A. A. Puchkov
- Kurchatov Institute National Research Center, 123098 Moscow, Russia
| | - E. M. Shirokova
- Kurchatov Institute National Research Center, 123098 Moscow, Russia
| | - V. I. Gomzyak
- Kurchatov Institute National Research Center, 123098 Moscow, Russia
| | - K. T. Kalinin
- Kurchatov Institute National Research Center, 123098 Moscow, Russia
| | | | - S. N. Chvalun
- Kurchatov Institute National Research Center, 123098 Moscow, Russia
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14
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He M, Chen F, Shao D, Weis P, Wei Z, Sun W. Photoresponsive metallopolymer nanoparticles for cancer theranostics. Biomaterials 2021; 275:120915. [PMID: 34102525 DOI: 10.1016/j.biomaterials.2021.120915] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 05/12/2021] [Accepted: 05/20/2021] [Indexed: 12/13/2022]
Abstract
Over the past decades, transition metal complexes have been successfully used in anticancer phototherapies. They have shown promising properties in many different areas including photo-induced ligand exchange or release, rich excited state behavior, and versatile biochemical properties. When encorporated into polymeric frameworks and become part of nanostructures, photoresponsive metallopolymer nanoparticles (MPNs) show enhanced water solubility, extended blood circulation and increased tumor-specific accumulation, which greatly improves the tumor therapeutic effects compared to low-molecule-weight metal complexes. In this review, we aim to present the recent development of photoresponsive MPNs as therapeutic nanomedicines. This review will summarize four major areas separately, namely platinum-containing polymers, zinc-containing polymers, iridium-containing polymers and ruthenium-containing polymers. Representative MPNs of each type are discussed in terms of their design strategies, fabrication methods, and working mechanisms. Current challenges and future perspectives in this field are also highlighted.
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Affiliation(s)
- Maomao He
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China
| | - Fangman Chen
- Institutes for Life Sciences, School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, Guangdong, 510630, China
| | - Dan Shao
- Institutes for Life Sciences, School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, Guangdong, 510630, China
| | - Philipp Weis
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Zhiyong Wei
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China.
| | - Wen Sun
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China.
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15
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Plajer AJ, Williams CK. Heterocycle/Heteroallene Ring-Opening Copolymerization: Selective Catalysis Delivering Alternating Copolymers. Angew Chem Int Ed Engl 2021; 61:e202104495. [PMID: 34015162 PMCID: PMC9298364 DOI: 10.1002/anie.202104495] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Indexed: 11/29/2022]
Abstract
Heteroatom‐containing polymers have strong potential as sustainable replacements for petrochemicals, show controllable monomer–polymer equilibria and properties spanning plastics, elastomers, fibres, resins, foams, coatings, adhesives, and self‐assembled nanostructures. Their current and future applications span packaging, house‐hold goods, clothing, automotive components, electronics, optical materials, sensors, and medical products. An interesting route to these polymers is the catalysed ring‐opening copolymerisation (ROCOP) of heterocycles and heteroallenes. It is a living polymerization, occurs with high atom economy, and creates precise, new polymer structures inaccessible by traditional methods. In the last decade there has been a renaissance in research and increasing examples of commercial products made using ROCOP. It is better known in the production of polycarbonates and polyesters, but is also a powerful route to make N‐, S‐, and other heteroatom‐containing polymers, including polyamides, polycarbamates, and polythioesters. This Review presents an overview of the different catalysts, monomer combinations, and polymer classes that can be accessed by heterocycle/heteroallene ROCOP.
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Affiliation(s)
- Alex J Plajer
- Oxford Chemistry, Chemical Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Charlotte K Williams
- Oxford Chemistry, Chemical Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK
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Nanaki SG, Andrianidou S, Barmpalexis P, Christodoulou E, Bikiaris DN. Leflunomide Loaded Chitosan Nanoparticles for the Preparation of Aliphatic Polyester Based Skin Patches. Polymers (Basel) 2021; 13:polym13101539. [PMID: 34064952 PMCID: PMC8151527 DOI: 10.3390/polym13101539] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 05/04/2021] [Accepted: 05/07/2021] [Indexed: 02/07/2023] Open
Abstract
In the present study, the preparation of controlled-released leflunomide (LFD)-loaded skin patches was evaluated, utilizing the combination of chitosan (CS) nanoparticles (NPs) incorporated into suitable poly(l-lactic acid) (PLLA) or poly(lactic-co-glycolic acid) (PLGA) polyester matrices. Initially, LFD-loaded CS NPs of ~600 nm and a smooth surface were prepared, while strong inter-molecular interactions between the drug and the CS were unraveled. In the following step, the prepared LFD-loaded CS NPs were incorporated into PLLA or PLGA, and thin-film patches were prepared via spin-coating. Analysis of the prepared films showed that the incorporation of the drug-loaded CS NPs resulted in a significant increase in the drug’s release rate and extent as compared to neat LFD-loaded polyester patches (i.e., prepared without the use of CS NPs). In-depth analysis of the prepared formulations showed that the amorphization of the drug within the matrix and the increased wetting properties of the prepared CS NPs were responsible for the improved thin-film patch characteristics.
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Affiliation(s)
- Stavroula G. Nanaki
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (S.G.N.); (S.A.); (E.C.)
| | - Sophia Andrianidou
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (S.G.N.); (S.A.); (E.C.)
| | - Panagiotis Barmpalexis
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Evi Christodoulou
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (S.G.N.); (S.A.); (E.C.)
| | - Dimitrios N. Bikiaris
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (S.G.N.); (S.A.); (E.C.)
- Correspondence: ; Tel.: +30-2310-997812
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Yue TJ, Wang LY, Ren WM. The synthesis of degradable sulfur-containing polymers: precise control of structure and stereochemistry. Polym Chem 2021. [DOI: 10.1039/d1py01065d] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review comprehensively summarized the recent progresses made in the precise synthesis of sulfur-containing polymers from the structure control, stereochemistry control and the topological structure modification aspects.
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Affiliation(s)
- Tian-Jun Yue
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Li-Yang Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Wei-Min Ren
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
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Rajes K, Walker KA, Hadam S, Zabihi F, Rancan F, Vogt A, Haag R. Redox-Responsive Nanocarrier for Controlled Release of Drugs in Inflammatory Skin Diseases. Pharmaceutics 2020; 13:pharmaceutics13010037. [PMID: 33383706 PMCID: PMC7823658 DOI: 10.3390/pharmaceutics13010037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/18/2020] [Accepted: 12/23/2020] [Indexed: 12/18/2022] Open
Abstract
A synthetic route for redox-sensitive and non-sensitive core multi-shell (CMS) carriers with sizes below 20 nm and narrow molecular weight distributions was established. Cyclic voltammetric measurements were conducted characterizing the redox potentials of reduction-sensitive CMS while showcasing its reducibility through glutathione and tris(2-carboxyethyl)-phosphine as a proof of concept. Measurements of reduction-initiated release of the model dye Nile red by time-dependent fluorescence spectroscopy showed a pronounced release for the redox-sensitive CMS nanocarrier (up to 90% within 24 h) while the non-sensitive nanocarriers showed no release in PBS. Penetration experiments using ex vivo human skin showed that the redox-sensitive CMS nanocarrier could deliver higher percentages of the loaded macrocyclic dye meso-tetra (m-hydroxyphenyl) porphyrin (mTHPP) to the skin as compared to the non-sensitive CMS nanocarrier. Encapsulation experiments showed that these CMS nanocarriers can encapsulate dyes or drugs with different molecular weights and hydrophobicity. A drug content of 1 to 6 wt% was achieved for the anti-inflammatory drugs dexamethasone and rapamycin as well as fluorescent dyes such as Nile red and porphyrins. These results show that redox-initiated drug release is a promising strategy to improve the topical drug delivery of macrolide drugs.
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Affiliation(s)
- Keerthana Rajes
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany;
| | - Karolina A. Walker
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany;
- Correspondence: (K.A.W.); (R.H.); Tel.: +49-030-8385-2633 (R.H.)
| | - Sabrina Hadam
- Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charité-Universitaetsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany; (S.H.); (F.Z.); (F.R.); (A.V.)
| | - Fatemeh Zabihi
- Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charité-Universitaetsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany; (S.H.); (F.Z.); (F.R.); (A.V.)
| | - Fiorenza Rancan
- Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charité-Universitaetsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany; (S.H.); (F.Z.); (F.R.); (A.V.)
| | - Annika Vogt
- Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charité-Universitaetsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany; (S.H.); (F.Z.); (F.R.); (A.V.)
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany;
- Correspondence: (K.A.W.); (R.H.); Tel.: +49-030-8385-2633 (R.H.)
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Li H, Sun J, Zhu H, Wu H, Zhang H, Gu Z, Luo K. Recent advances in development of dendritic polymer-based nanomedicines for cancer diagnosis. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2020; 13:e1670. [PMID: 32949116 DOI: 10.1002/wnan.1670] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/27/2020] [Accepted: 08/28/2020] [Indexed: 02/05/2023]
Abstract
Dendritic polymers have highly branched three-dimensional architectures, the fourth type apart from linear, cross-linked, and branched one. They possess not only a large number of terminal functional units and interior cavities, but also a low viscosity with weak or no entanglement. These features endow them with great potential in various biomedicine applications, including drug delivery, gene therapy, tissue engineering, immunoassay and bioimaging. Most review articles related to bio-related applications of dendritic polymers focus on their drug or gene delivery, while very few of them are devoted to their function as cancer diagnosis agents, which are essential for cancer treatment. In this review, we will provide comprehensive insights into various dendritic polymer-based cancer diagnosis agents. Their classification and preparation are presented for readers to have a precise understanding of dendritic polymers. On account of physical/chemical properties of dendritic polymers and biological properties of cancer, we will suggest a few design strategies for constructing dendritic polymer-based diagnosis agents, such as active or passive targeting strategies, imaging reporters-incorporating strategies, and/or internal stimuli-responsive degradable/enhanced imaging strategies. Their recent applications in in vitro diagnosis of cancer cells or exosomes and in vivo diagnosis of primary and metastasis tumor sites with the aid of single/multiple imaging modalities will be discussed in great detail. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease Diagnostic Tools > in vivo Nanodiagnostics and Imaging Diagnostic Tools > in vitro Nanoparticle-Based Sensing.
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Affiliation(s)
- Haonan Li
- Laboratory of Stem Cell Biology, and Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Jiayu Sun
- Laboratory of Stem Cell Biology, and Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Hongyan Zhu
- Laboratory of Stem Cell Biology, and Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Haoxing Wu
- Laboratory of Stem Cell Biology, and Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Hu Zhang
- Amgen Bioprocessing Centre, Keck Graduate Institute, Claremont, California, USA
| | - Zhongwei Gu
- Laboratory of Stem Cell Biology, and Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Kui Luo
- Laboratory of Stem Cell Biology, and Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and Molecular Imaging Key Laboratory of Sichuan Province, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
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20
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High performance branched poly(lactide) induced by reactive extrusion with low-content cyclic organic peroxide and multifunctional acrylate coagents. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122867] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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Yue T, Bhat GA, Zhang W, Ren W, Lu X, Darensbourg DJ. Facile Synthesis of Well‐Defined Branched Sulfur‐Containing Copolymers: One‐Pot Copolymerization of Carbonyl Sulfide and Epoxide. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005806] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Tian‐Jun Yue
- State Key Laboratory of Fine Chemicals Dalian University of Technology 2 Linggong Road Dalian 116024 China
- Department of Chemistry Texas A&M University College Station TX 77843 USA
| | - Gulzar A. Bhat
- Department of Chemistry Texas A&M University College Station TX 77843 USA
| | - Wen‐Jian Zhang
- State Key Laboratory of Fine Chemicals Dalian University of Technology 2 Linggong Road Dalian 116024 China
| | - Wei‐Min Ren
- State Key Laboratory of Fine Chemicals Dalian University of Technology 2 Linggong Road Dalian 116024 China
| | - Xiao‐Bing Lu
- State Key Laboratory of Fine Chemicals Dalian University of Technology 2 Linggong Road Dalian 116024 China
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22
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Li J, Wei YJ, Yang XL, Wu WX, Zhang MQ, Li MY, Hu ZE, Liu YH, Wang N, Yu XQ. Rational Construction of a Mitochondrial Targeting, Fluorescent Self-Reporting Drug-Delivery Platform for Combined Enhancement of Endogenous ROS Responsiveness. ACS APPLIED MATERIALS & INTERFACES 2020; 12:32432-32445. [PMID: 32573194 DOI: 10.1021/acsami.0c08336] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
To maximize the utilization and response to the high oxidative stress environment of tumor sites while avoiding the dilemma of enhancing reactive oxygen species (ROS) response in a single way, mitochondrial targeting combined with fluorescent self-reporting polymeric nanocarriers (1K-TPP and 2K-TPP) with grafted structures were synthesized via a chemoenzymatic method in a high yield to simultaneously enhance the drug delivery of endogenous ROS responses. 1K-TPP and 2K-TPP loaded doxorubicin (DOX) at a high content over 12% and formed homogeneous spherical micelles. In vitro, both of them showed promising high sensitivity (detection limit below 200 nM H2O2), fast response, and ratiometric fluorescent self-reporting properties (fluorescent enhancement more than 200 times) to ROS and excellent stability under physiological conditions, while achieving a rapid release of the DOX in response to 1 mM H2O2. Cell co-localization experiments exhibited that they had favorable mitochondrial targeting, and mitochondrial isolation experiments also confirmed that the TPP-modified 1K-TPP selectively accumulated nearly three times in mitochondria than that in total cells. The internalization of 1K-TPP and 2K-TPP into cancer cells was greatly improved by nearly 200% compared to that of unmodified control (1K-OH and 2K-OH) and also explored a unique energy-dependent endocytosis. Furthermore, stimulation of endogenous ROS enhanced the green fluorescence intensity (up to 51.4%) of the linked probe so as to destroy the internal structure of the nanocarriers, achieving self-reporting of the drug's intracellular release and tracking of the intracellular location of nanocarriers. The cytotoxicity of DOX-loaded 1K-TPP and 2K-TPP in tumor cells with a higher ROS content showed statistical superiority to that of 1K-OH and 2K-OH, benefiting from the extremely good endogenous ROS response sensitivity leading to the differential selective release of drugs. These results demonstrate the potential of 1K-TPP and 2K-TPP, especially for 1K-TPP, as mitochondria-targeted, fluorescent self-reporting nanocarriers for combined enhancement of endogenous ROS responsiveness.
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Affiliation(s)
- Jun Li
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yun-Jie Wei
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xian-Ling Yang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Wan-Xia Wu
- College of Pharmacy and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Meng-Qian Zhang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Meng-Yang Li
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Zu-E Hu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yan-Hong Liu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Na Wang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
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Yue TJ, Bhat GA, Zhang WJ, Ren WM, Lu XB, Darensbourg DJ. Facile Synthesis of Well-Defined Branched Sulfur-Containing Copolymers: One-Pot Copolymerization of Carbonyl Sulfide and Epoxide. Angew Chem Int Ed Engl 2020; 59:13633-13637. [PMID: 32372553 DOI: 10.1002/anie.202005806] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Indexed: 12/18/2022]
Abstract
Topological polymers possess many advantages over linear polymers. However, when it comes to the poly(monothiocarbonate)s, no topological polymers have been reported. Described herein is a facile and efficient approach for synthesizing well-defined branched poly(monothiocarbonate)s in a "grafting through" manner by copolymerizing carbonyl sulfide (COS) with epichlorohydrin (ECH), where the side-chain forms in situ. The lengths of the side-chains are tunable based on reaction temperatures. More importantly, enhancement in thermal properties of the branched copolymer was observed, as the Tg value increased by 22 °C, compared to the linear analogues. When chiral ECH was utilized, semicrystalline branched poly(monothiocarbonate)s were accessible with a Tm value of 112 °C, which is 40 °C higher than that of the corresponding linear poly(monothiocarbonate)s. The strategy presented herein for synthesizing branched polymers provides efficient and concise access to topological polymers.
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Affiliation(s)
- Tian-Jun Yue
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China.,Department of Chemistry, Texas A&M University, College Station, TX, 77843, USA
| | - Gulzar A Bhat
- Department of Chemistry, Texas A&M University, College Station, TX, 77843, USA
| | - Wen-Jian Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Wei-Min Ren
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Xiao-Bing Lu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
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24
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Ashush N, Fallek R, Fallek A, Dobrovetsky R, Portnoy M. Base- and Catalyst-Induced Orthogonal Site Selectivities in Acylation of Amphiphilic Diols. Org Lett 2020; 22:3749-3754. [PMID: 32330055 DOI: 10.1021/acs.orglett.0c00830] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Seeking to selectively functionalize natural and synthetic amphiphiles, we explored acylation of model amphiphilic diols. The use of a nucleophilic catalyst enabled a remarkable shift of the site selectivity from the polar site, preferred in background noncatalyzed or base-promoted reactions, to the apolar site. This tendency was significantly enhanced for organocatalysts comprising an imidazole active site surrounded by long/branched tails. An explanation of these orthogonal modes of selectivity is supported by competitive experiments with monoalcohol substrates.
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Affiliation(s)
- Natali Ashush
- School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Reut Fallek
- School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Amit Fallek
- School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Roman Dobrovetsky
- School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Moshe Portnoy
- School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
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25
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Influence of surface modified graphene oxide on the mechanical performance and curing kinetics of epoxy resin. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.4913] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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26
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Scoponi G, Guzman-Puyol S, Caputo G, Ceseracciu L, Athanassiou A, Heredia-Guerrero JA. Highly biodegradable, ductile all-polylactide blends. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122371] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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27
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He M, Cheng Y, Liang Y, Xia M, Leng X, Wang Y, Wei Z, Zhang W, Li Y. Amino acid complexes with tin as a new class of catalysts with high reactivity and low toxicity towards biocompatible aliphatic polyesters. Polym J 2020. [DOI: 10.1038/s41428-020-0314-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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28
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Hadar J, Skidmore S, Garner J, Park H, Park K, Wang Y, Qin B, Jiang X. Characterization of branched poly(lactide-co-glycolide) polymers used in injectable, long-acting formulations. J Control Release 2019; 304:75-89. [DOI: 10.1016/j.jconrel.2019.04.039] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 04/24/2019] [Accepted: 04/28/2019] [Indexed: 10/26/2022]
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Skidmore S, Hadar J, Garner J, Park H, Park K, Wang Y, Jiang XJ. Complex sameness: Separation of mixed poly(lactide-co-glycolide)s based on the lactide:glycolide ratio. J Control Release 2019; 300:174-184. [PMID: 30853529 DOI: 10.1016/j.jconrel.2019.03.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 02/23/2019] [Accepted: 03/01/2019] [Indexed: 11/18/2022]
Abstract
Poly (lactide-co-glycolide) (PLGA) has been used for making injectable, long-acting depot formulations for the last three decades. An in depth understanding of PLGA polymers is critical for development of depot formulations as their properties control drug release kinetics. To date, about 20 PLGA-based formulations have been approved by the U.S. Food and Drug Administration (FDA) through new drug applications, and none of them have generic counterparts on the market yet. The lack of generic PLGA products is partly due to difficulties in reverse engineering. A generic injectable PLGA product is required to establish qualitative and quantitative (Q1/Q2) sameness of PLGA to that of a reference listed drug (RLD) to obtain an approval from the FDA. Conventional characterizations of PLGA used in a formulation rely on measuring the molecular weight by gel permeation chromatography (GPC) based on polystyrene molecular weight standards, and determining the lactide:glycolide (L: G) ratio by 1H NMR and the end-group by 13C NMR. These approaches, however, may not be suitable or sufficient, if a formulation has more than one type of PLGA, especially when they have similar molecular weights, but different L:G ratios. Accordingly, there is a need to develop new assay methods for separating PLGAs possessing different L:G ratios when used in a drug product and characterizing individual PLGAs. The current work identifies a series of semi-solvents which exhibit varying degrees of PLGA solubility depending on the L:G ratio of the polymer. A good solvent dissolves PLGAs with all L:G ratios ranging from 50:50 to 100:0. A semi-solvent dissolves PLGAs with only certain L:G ratios. Almost all semi-solvents identified in this study increase their PLGA solubility as the L:G ratio increases, i.e., the lactide content increases. This lacto-selectivity, favoring higher L:G ratios, has been applied for separating individual PLGAs in a given depot formulation, leading to analysis of each type of PLGA. This semi-solvent method allows a simple, practical bench-top separation of PLGAs of varying L:G ratios. This method enables isolation and identification of individual PLGAs from a complex mixture that is critical for the quality control of PLGA formulations, as well as reverse engineering for generic products to establish the Q1/Q2 sameness.
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Affiliation(s)
- Sarah Skidmore
- Akina, Inc., 3495 Kent Avenue, Suite A200, West Lafayette, IN 47906, USA
| | - Justin Hadar
- Akina, Inc., 3495 Kent Avenue, Suite A200, West Lafayette, IN 47906, USA
| | - John Garner
- Akina, Inc., 3495 Kent Avenue, Suite A200, West Lafayette, IN 47906, USA
| | - Haesun Park
- Akina, Inc., 3495 Kent Avenue, Suite A200, West Lafayette, IN 47906, USA
| | - Kinam Park
- Akina, Inc., 3495 Kent Avenue, Suite A200, West Lafayette, IN 47906, USA; Biomedical Engineering and Pharmaceutics, Purdue University, 206 S. Martin Jischke Drive, West Lafayette, IN 47907, USA.
| | - Yan Wang
- Food and Drug Administration, Center for Drug Evaluation and Research, Office of Generic Drugs, 10903 New Hampshire Avenue, Silver Spring, MD 20993, USA
| | - Xiaohui Jeff Jiang
- Food and Drug Administration, Center for Drug Evaluation and Research, Office of Generic Drugs, 10903 New Hampshire Avenue, Silver Spring, MD 20993, USA
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Li J, Hu ZE, Yang XL, Wu WX, Xing X, Gu B, Liu YH, Wang N, Yu XQ. GSH/pH dual-responsive biodegradable camptothecin polymeric prodrugs combined with doxorubicin for synergistic anticancer efficiency. Biomater Sci 2019; 7:3277-3286. [DOI: 10.1039/c9bm00425d] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
GSH and pH dual-responsive camptothecin polymeric prodrugs combined doxorubicin for synergistic drug delivery to highly improved selectivity and synergy benefiting from good long-term stability, better internalization and sensitive dual-responsibility.
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Affiliation(s)
- Jun Li
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Zu-E. Hu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Xian-Ling Yang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Wan-Xia Wu
- College of Pharmacy and Biological Engineering
- Chengdu University
- Chengdu 610106
- P. R. China
| | - Xiu Xing
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Bo Gu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Yan-Hong Liu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Na Wang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu
- China
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Li J, Yang XL, Liu YH, Wu WX, Liu BY, Wang N, Yu XQ. Chemoenzymatic synthesis of dual-responsive graft copolymers for drug delivery: long-term stability, high loading and cell selectivity. J Mater Chem B 2018; 6:6993-7003. [PMID: 32254582 DOI: 10.1039/c8tb01973h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of amphiphilic graft copolymers, poly(N-propargyldiethanolamine 4,4'-dithiodibutyionate)-graft-monomethoxy poly(ethylene glycol) (PPD-g-mPEG), were designed via a chemoenzymatic method for pH and reduced glutathione (GSH) dual-responsive drug delivery. The effects of percent grafting and molecular weights of mPEG on critical micelle concentration (CMC) values, size of micelles, drug loading and dual-response were tested. The graft copolymers could easily form homogeneous spherical micelles with appropriate sizes and zeta-potentials. The micelles of PPD-g-mPEG copolymers loaded doxorubicin (DOX) in high efficiency, and showed excellent stability under physiological conditions and synergetic dual-response to weakly acidic pH and GSH. In vitro experiments confirmed that the DOX-loaded micelles could be internalized into cancer cells efficiently and release DOX over time. Furthermore, cell cytotoxicity assays indicated that the graft copolymers were non-cytotoxic to both cancerous and normal cells while the DOX-loaded micelles greatly improved the selectivity ratios between HeLa cells and HL-7702 cells. DOX-loaded micelles also avoided hemolysis of red blood cells (RBCs) effectively compared with commercialized doxorubicin hydrochloride. All these demonstrated the potential of PPD-g-mPEG as a model to create more functional dual-responsive nanocarriers for controlled drug delivery.
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Affiliation(s)
- Jun Li
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China.
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33
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Liu X, Fan X, Jiang L, Loh XJ, Wu YL, Li Z. Biodegradable polyester unimolecular systems as emerging materials for therapeutic applications. J Mater Chem B 2018; 6:5488-5498. [PMID: 32254961 DOI: 10.1039/c8tb01883a] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Unimolecular micelles, as a class of single-molecular micelles, are structurally stable regardless of their concentrations or alterations of the outer environment such as pH, temperature, ion strength etc. in comparison with conventional polymeric micelles. Polyester unimolecular micelles are extensively applied in bio-medical fields because of their stability, biocompatibility, biodegradability, structural-controllabilty etc. In this review, the most recent developments in polyester unimolecular micelle designs in terms of Boltorn polymer H40 core, cyclodextrin, dendrimer or dendrimer-like polymer, or polyhedral oligomeric silsesquioxane (POSS) based polyester unimolecular micelles are presented. The significance and application in biomedical fields including drug delivery, bio-imaging and theranostics are also classified in this review. Finally, the remaining challenges and future perspectives for further development of unimolecular micelles as therapeutic materials are also discussed.
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Affiliation(s)
- Xuan Liu
- School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, P. R. China.
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34
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Lallana E, Donno R, Magrì D, Barker K, Nazir Z, Treacher K, Lawrence MJ, Ashford M, Tirelli N. Microfluidic-assisted nanoprecipitation of (PEGylated) poly (d,l-lactic acid-co-caprolactone): Effect of macromolecular and microfluidic parameters on particle size and paclitaxel encapsulation. Int J Pharm 2018; 548:530-539. [PMID: 30009983 DOI: 10.1016/j.ijpharm.2018.07.031] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 07/04/2018] [Accepted: 07/10/2018] [Indexed: 02/07/2023]
Abstract
In this work we evaluate the effect of polymer composition and architecture of (PEGylated) polyesters on particle size and paclitaxel (PTX) loading for particles manufactured via microfluidic-assisted, continuous-flow nanoprecipitation using two microfluidic chips with different geometries and mixing principles. We have prepared poly (d,l-lactic acid-co-caprolactone) (PLCL) from ring-opening polymerization (ROP) of LA and CL mixtures and different (macro) initiators (namely, 1-dodecanol, a MeO-PEG-OH, and a 4-armed star PEG-OH), rendering polyesters that vary in monomer composition (i.e. LA/CL ratios) and architecture (i.e. linear vs 4-armed star). Continuous-flow nanoprecipitation was assayed using two microfluidic chips: a cross-flow chip with a X-shaped mixing junction (2D laminar flow focusing) and a micromixer featuring a Y-shaped mixing junction and a split and recombine path (2D laminar flow focusing convinced with stream lamination for faster mixing). Nanoparticle formulations were produced with Z-average sizes in the range of 30-160 nm, although size selectivity could be seen for different polymer/chip combinations; for instance, smaller particles were obtained with Y-shaped micromixer (30-120 nm), specially for the PEGylated polyesters (30-50 nm), whereas the cross-flow chip systematically produced larger particles (80-160 nm). Loading of the anti-cancer drug paclitaxel (PTX) was also heavily influenced not only by the nature of the polyester, but also by the geometry of the microfluidic chip; higher drug loadings were obtained with the cross-flow reactor and the star block copolymers. Finally, decreasing the LA/CL ratio generally had a positive effect on drug loading.
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Affiliation(s)
- Enrique Lallana
- North West Centre for Advanced Drug Delivery (NoWCADD), Division of Pharmacy & Optometry, School of Health Sciences, Medicine and Health, Stopford Building, Manchester M13 9PT, United Kingdom.
| | - Roberto Donno
- North West Centre for Advanced Drug Delivery (NoWCADD), Division of Pharmacy & Optometry, School of Health Sciences, Medicine and Health, Stopford Building, Manchester M13 9PT, United Kingdom
| | - Davide Magrì
- Smart Materials, Fondazione Istituto Italiano di Tecnologia, 16163 Genova, Italy
| | - Katie Barker
- Pharmaceutical Technology & Development, AstraZeneca, Macclesfield SK10 4TG, United Kingdom
| | - Zahid Nazir
- Pharmaceutical Sciences, Innovative Medicines Biotech Unit, AstraZeneca, Macclesfield SK10 4TG, United Kingdom
| | - Kevin Treacher
- Pharmaceutical Technology & Development, AstraZeneca, Macclesfield SK10 4TG, United Kingdom
| | - M Jayne Lawrence
- North West Centre for Advanced Drug Delivery (NoWCADD), Division of Pharmacy & Optometry, School of Health Sciences, Medicine and Health, Stopford Building, Manchester M13 9PT, United Kingdom
| | - Marianne Ashford
- Pharmaceutical Sciences, Innovative Medicines Biotech Unit, AstraZeneca, Macclesfield SK10 4TG, United Kingdom
| | - Nicola Tirelli
- North West Centre for Advanced Drug Delivery (NoWCADD), Division of Pharmacy & Optometry, School of Health Sciences, Medicine and Health, Stopford Building, Manchester M13 9PT, United Kingdom; Laboratory of Polymers and Biomaterials, Fondazione Istituto Italiano di Tecnologia, 16163 Genova, Italy
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35
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Blokhin AN, Razina AB, Ten’kovtsev AV. Star Poly(2-alkyl-2-oxazolines) Based on Octa-(chlorosulfonyl)-calix[8]arene. POLYMER SCIENCE SERIES B 2018. [DOI: 10.1134/s1560090418030028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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36
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Lu L, Xia L, Zengheng H, Xingyue S, Yi Z, Pan L. Investigation on cure kinetics of epoxy resin containing carbon nanotubes modified with hyper-branched polyester. RSC Adv 2018; 8:29830-29839. [PMID: 35547293 PMCID: PMC9085290 DOI: 10.1039/c8ra04525a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 08/18/2018] [Indexed: 12/14/2022] Open
Abstract
The cure kinetics of epoxy resin cured by diethyltoluene diamine (D-EP), D-EP/multi-walled carbon nanotube (D-EP/CNT) composites and D-EP/hyper branched polyester functionalized CNTs (D-EP/CNTs-H20) were investigated by non-isothermal differential scanning calorimetry (DSC). Results revealed that the presence of CNTs shifted the cure temperature to a lower temperature and accelerated the curing of D-EP, and the addition of CNTs-H20 exhibited a stronger effect in accelerating the cure of D-EP. Activation energies were calculated based on the Kissinger approach and Ozawa approach respectively. Lowered activation energy was observed after the addition of CNTs or CNTs-H20 at low degrees of cure, indicating that the CNTs had a large effect on the curing reaction. The presence of CNTs facilitated the curing reaction, especially the initial epoxyamine reaction. Moreover, CNTs-H20 exhibited better performance. The autocatalytic model was used to describe the cure kinetics phenomena of the studied systems. When CNTs or CNTs-H20 were added, the Sesták–Berggren model still can describe the cure kinetics of the D-EP composites because the results, calculated by the model, agreed with the experimental data well. Moreover, the kinetics parameters as well as the equation describing the cure process were proposed. The cure kinetics of epoxy resin cured by D-EP, D-EP/CNT composites and D-EP/CNTs-H20 were investigated by non-isothermal differential scanning calorimetry (DSC).![]()
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Affiliation(s)
- Li Lu
- College of Polymer Science and Engineering
- Sichuan University
- Chengdu
- China
- Chongqing Zhixiang Paving Technology Engineering Co., Ltd
| | - Liao Xia
- College of Polymer Science and Engineering
- Sichuan University
- Chengdu
- China
| | - Hao Zengheng
- Chongqing Zhixiang Paving Technology Engineering Co., Ltd
- Chongqing
- China
- China Merchants Chongqing Communications Research & Design Institute Co., Ltd
- Chongqing 400067
| | - Sheng Xingyue
- Chongqing Zhixiang Paving Technology Engineering Co., Ltd
- Chongqing
- China
| | - Zhang Yi
- Chongqing Zhixiang Paving Technology Engineering Co., Ltd
- Chongqing
- China
| | - Liu Pan
- Chongqing Zhixiang Paving Technology Engineering Co., Ltd
- Chongqing
- China
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37
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Capasso Palmiero U, Sponchioni M, Manfredini N, Maraldi M, Moscatelli D. Strategies to combine ROP with ATRP or RAFT polymerization for the synthesis of biodegradable polymeric nanoparticles for biomedical applications. Polym Chem 2018. [DOI: 10.1039/c8py00649k] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The available strategies to combine CRPs and ROP in the synthesis of highly engineered polymer nanoparticles are here critically discussed.
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Affiliation(s)
| | - Mattia Sponchioni
- Department of Chemistry
- Materials and Chemical Engineering
- Politecnico di Milano
- 20131 Milano
- Italy
| | - Nicolò Manfredini
- Department of Chemistry and Applied Biosciences
- Institute for Chemical and Bioengineering
- ETH Zurich
- Switzerland
| | - Matteo Maraldi
- Department of Chemistry and Applied Biosciences
- Institute for Chemical and Bioengineering
- ETH Zurich
- Switzerland
| | - Davide Moscatelli
- Department of Chemistry
- Materials and Chemical Engineering
- Politecnico di Milano
- 20131 Milano
- Italy
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38
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The One-Stage Synthesis of Hyperbranched Polyimides by (A2+B4) Scheme in Catalytic Solvent. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/masy.201600202] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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39
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Sun P, Zhu W, Chen J, Liu J, Wu Y, Zhang K. Synthesis of well-defined cyclic polyesters via self-accelerating click reaction. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.06.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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40
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Ganugula R, Arora M, Saini P, Guada M, Kumar MNVR. Next Generation Precision-Polyesters Enabling Optimization of Ligand-Receptor Stoichiometry for Modular Drug Delivery. J Am Chem Soc 2017; 139:7203-7216. [PMID: 28395139 DOI: 10.1021/jacs.6b13231] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The success of receptor-mediated drug delivery primarily depends on the ability to optimize ligand-receptor stoichiometry. Conventional polyesters such as polylactide (PLA) or its copolymer, polylactide-co-glycolide (PLGA), do not allow such optimization due to their terminal functionality. We herein report the synthesis of 12 variations of the PLA-poly(ethylene glycol) (PEG) based precision-polyester (P2s) platform, permitting 5-12 periodically spaced carboxyl functional groups on the polymer backbone. These carboxyl groups were utilized to achieve variable degrees of gambogic acid (GA) conjugation to facilitate ligand-receptor stoichiometry optimization. These P2s-GA combined with fluorescent P2s upon emulsification form nanosystems (P2Ns) of size <150 nm with GA expressed on the surface. The P2Ns outclass conventional PLGA-GA nanosystems in cellular uptake using caco-2 intestinal model cultures. The P2Ns showed a proportional increase in cellular uptake with an increase in relative surface GA density from 0 to 75%; the slight decline for 100% GA density was indicative of receptor saturation. The intracellular trafficking of P2Ns in live caco-2 cells demonstrated the involvement of endocytic pathways in cellular uptake. The P2Ns manifest transferrin receptor (TfR) colocalization in ex vivo intestinal tissue sections, despite blocking of the receptor with transferrin (Tf) noncompetitively, i.e., independently of receptor occupation by native ligand. The in vivo application of P2Ns was demonstrated using cyclosporine (CsA) as a model peptide. The P2Ns exhibited modular release in vivo, as a function of surface GA density. This approach may contribute to the development of personalized dose regimen.
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Affiliation(s)
- Raghu Ganugula
- Department of Pharmaceutical Sciences, College of Pharmacy, Texas A&M University , TAMU Mailstop 1114, College Station, Texas 77843, United States
| | - Meenakshi Arora
- Department of Pharmaceutical Sciences, College of Pharmacy, Texas A&M University , TAMU Mailstop 1114, College Station, Texas 77843, United States
| | - Prabhjot Saini
- Department of Pharmaceutical Sciences, College of Pharmacy, Texas A&M University , TAMU Mailstop 1114, College Station, Texas 77843, United States
| | - Melissa Guada
- Department of Pharmaceutical Sciences, College of Pharmacy, Texas A&M University , TAMU Mailstop 1114, College Station, Texas 77843, United States
| | - Majeti N V Ravi Kumar
- Department of Pharmaceutical Sciences, College of Pharmacy, Texas A&M University , TAMU Mailstop 1114, College Station, Texas 77843, United States
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41
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Balavigneswaran CK, Mahto SK, Subia B, Prabhakar A, Mitra K, Rao V, Ganguli M, Ray B, Maiti P, Misra N. Tailored Chemical Properties of 4-Arm Star Shaped Poly(d,l-lactide) as Cell Adhesive Three-Dimensional Scaffolds. Bioconjug Chem 2017; 28:1236-1250. [DOI: 10.1021/acs.bioconjchem.7b00071] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
| | | | - Bano Subia
- CSIR-Institute of Genomics and Integrative Biology, Mathura road, New Delhi-110025, India
| | - Arumugam Prabhakar
- CSIR-Institute of Genomics and Integrative Biology, Mathura road, New Delhi-110025, India
- Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhavan, 2 Rafi Marg, New Delhi-110001, India
| | - Kheyanath Mitra
- Department
of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India
| | - Vivek Rao
- CSIR-Institute of Genomics and Integrative Biology, Mathura road, New Delhi-110025, India
- Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhavan, 2 Rafi Marg, New Delhi-110001, India
| | - Munia Ganguli
- CSIR-Institute of Genomics and Integrative Biology, Mathura road, New Delhi-110025, India
- Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhavan, 2 Rafi Marg, New Delhi-110001, India
| | - Biswajit Ray
- Department
of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India
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42
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Burke J, Donno R, d'Arcy R, Cartmell S, Tirelli N. The Effect of Branching (Star Architecture) on Poly(d,l-lactide) (PDLLA) Degradation and Drug Delivery. Biomacromolecules 2017; 18:728-739. [PMID: 27930884 DOI: 10.1021/acs.biomac.6b01524] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This study focuses on the comparative evaluation of star (branched) and linear poly(l,d-lactic acid) (PDLLA) as degradable materials employed in controlled release. The polymers were prepared via ring-opening polymerization initiated by decanol (linear), pentaerythritol (4-armed star) and dipentaerythritol (6-armed star), and processed both in the form of films and nanoparticles. Independent of the length or number of their arms, star polymers degrade slower than linear polymers, possibly through a surface (vs bulk) mechanism. Further, the release of a model drug (atorvastatin) followed zero-order-like kinetics for the branched polymers, and first-order kinetics for linear PDLLA. Using NHOst osteoblastic cells, both linear and star polymers were devoid of any significant toxicity and released atorvastatin in a bioavailable form; cell adhesion was considerably lower on star polymer films, and the slower release from their nanoparticles appeared to be beneficial to avoid atorvastatin overdosing.
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Affiliation(s)
- Jason Burke
- NorthWest Centre of Advanced Drug Delivery (NoWCADD), Manchester Pharmacy School, University of Manchester , Oxford Road, Manchester, M13 9PT, United Kingdom
| | - Roberto Donno
- NorthWest Centre of Advanced Drug Delivery (NoWCADD), Manchester Pharmacy School, University of Manchester , Oxford Road, Manchester, M13 9PT, United Kingdom
| | - Richard d'Arcy
- NorthWest Centre of Advanced Drug Delivery (NoWCADD), Manchester Pharmacy School, University of Manchester , Oxford Road, Manchester, M13 9PT, United Kingdom
| | - Sarah Cartmell
- School of Materials, University of Manchester , Grosvenor Street, Manchester, M13 9PL, United Kingdom
| | - Nicola Tirelli
- NorthWest Centre of Advanced Drug Delivery (NoWCADD), Manchester Pharmacy School, University of Manchester , Oxford Road, Manchester, M13 9PT, United Kingdom
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43
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Valerio O, Pin JM, Misra M, Mohanty AK. Synthesis of Glycerol-Based Biopolyesters as Toughness Enhancers for Polylactic Acid Bioplastic through Reactive Extrusion. ACS OMEGA 2016; 1:1284-1295. [PMID: 31457196 PMCID: PMC6640793 DOI: 10.1021/acsomega.6b00325] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 11/30/2016] [Indexed: 05/27/2023]
Abstract
The synthesis of polyesters based on glycerol, succinic acid [poly(glycerol succinate), PGS] and/or maleic anhydride [poly(glycerol succinate-co-maleate), PGSMA] was investigated aiming to produce a green product suitable for toughening of polylactic acid (PLA) using melt blending technologies. The molar ratio of reactants and the synthesis temperature were screened to find optimum synthesis conditions leading to the highest toughness enhancement of PLA. It was found that a molar ratio of reactants of 1:1 glycerol/succinic acid increases the effectiveness of PGS as a toughening agent for PLA, which correlates with the achievement of a higher molecular weight on the synthesis of PGS. The introduction of maleic anhydride as a comonomer for the synthesis of the partial replacement of succinic acid was advantageous for making PGS suitable for reactive extrusion (REX) mediated by free radical initiators. The tensile toughness of the REX PLA/PGSMA blends was improved by 392% compared with that of neat PLA, which was caused by the simultaneous cross-linking of PGSMA within the PLA matrix, and the in situ formation of PLA-g-PGSMA graft copolymers acting as interfacial compatibilizers. Two-dimensional nuclear magnetic resonance and Fourier transform infrared analysis confirmed the formation of PLA-g-PGSMA species on REX experiments. This in turn caused a decrease in the diameter of the PGS particles dispersed within the PLA matrix from >10 μm to approximately 2 μm as observed using scanning electron microscopy. A further increase of 1600% in the toughness of the blends was achieved by lowering the synthesis temperature of PGSMA from 180 to 150 °C. The optimum synthesis conditions for PGSMA leading to the highest increase in the toughness of 80/20 PLA/PGSMA blends were found to be 1:0.5:0.5 mol glycerol/succinic acid/maleic anhydride synthesized at a temperature of 150 °C for 5 h.
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Affiliation(s)
- Oscar Valerio
- School
of Engineering, University of Guelph, Thornbrough Building, 50 Stone Road
East, Guelph N1G 2W1, Ontario, Canada
- Bioproducts
Discovery and Development Centre, Department of Plant Agriculture, University of Guelph, Crop Science Building, 50 Stone Road East, Guelph N1G 2W1, Ontario, Canada
| | - Jean Mathieu Pin
- Bioproducts
Discovery and Development Centre, Department of Plant Agriculture, University of Guelph, Crop Science Building, 50 Stone Road East, Guelph N1G 2W1, Ontario, Canada
| | - Manjusri Misra
- School
of Engineering, University of Guelph, Thornbrough Building, 50 Stone Road
East, Guelph N1G 2W1, Ontario, Canada
- Bioproducts
Discovery and Development Centre, Department of Plant Agriculture, University of Guelph, Crop Science Building, 50 Stone Road East, Guelph N1G 2W1, Ontario, Canada
| | - Amar K. Mohanty
- School
of Engineering, University of Guelph, Thornbrough Building, 50 Stone Road
East, Guelph N1G 2W1, Ontario, Canada
- Bioproducts
Discovery and Development Centre, Department of Plant Agriculture, University of Guelph, Crop Science Building, 50 Stone Road East, Guelph N1G 2W1, Ontario, Canada
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44
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Shirkavand Hadavand B, Saeb MR, Najafi F, Malekian A. Response surface analysis for understanding the effects of synthesis parameters on the microstructure of hyperbranched polyesters. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2016. [DOI: 10.1080/10601325.2016.1237812] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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