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Toncheva-Moncheva N, Dimitrov E, Grancharov G, Momekova D, Petrov P, Rangelov S. Cinnamyl-Modified Polyglycidol/Poly(ε-Caprolactone) Block Copolymer Nanocarriers for Enhanced Encapsulation and Prolonged Release of Cannabidiol. Pharmaceutics 2023; 15:2128. [PMID: 37631342 PMCID: PMC10459144 DOI: 10.3390/pharmaceutics15082128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/04/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
The present study describes the development of novel block copolymer nanocarriers of the phytocannabinoid cannabidiol (CBD), designed to enhance the solubility of the drug in water while achieving high encapsulation efficiency and prolonged drug release. Firstly, a well-defined amphiphilic block copolymer consisting of two outer hydrophilic polyglycidol (PG) blocks and a middle hydrophobic block of poly(ε-caprolactone) bearing pendant cinnamyl moieties (P(CyCL-co-CL)) were synthesized by the click coupling reaction of PG-monoalkyne and P(CyCL-co-CL)-diazide functional macroreagents. A non-modified polyglycidol/poly(ε-caprolactone) amphiphilic block copolymer was obtained as a referent system. Micellar carriers based on the two block copolymers were formed via the solvent evaporation method and loaded with CBD following two different protocols-loading during micelle formation and loading into preformed micelles. The key parameters/characteristics of blank and CBD-loaded micelles such as size, size distribution, zeta potential, molar mass, critical micelle concentration, morphology, and encapsulation efficiency were determined by using dynamic and static multiangle and electrophoretic light scattering, transmission electron microscopy, and atomic force microscopy. Embedding CBD into the micellar carriers affected their hydrodynamic radii to some extent, while the spherical morphology of particles was not changed. The nanoformulation based on the copolymer bearing cinnamyl moieties possessed significantly higher encapsulation efficiency and a slower rate of drug release than the non-modified copolymer. The comparative assessment of the antiproliferative effect of micellar CBD vs. the free drug against the acute myeloid leukemia-derived HL-60 cell line and Sezary Syndrome HUT-78 demonstrated that the newly developed systems have pronounced antitumor activity.
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Affiliation(s)
- Natalia Toncheva-Moncheva
- Institute of Polymers, Bulgarian Academy of Sciences, “Akad. G. Bonchev” Street., bl. 103A, 1113 Sofia, Bulgaria; (E.D.); (G.G.); (P.P.)
| | - Erik Dimitrov
- Institute of Polymers, Bulgarian Academy of Sciences, “Akad. G. Bonchev” Street., bl. 103A, 1113 Sofia, Bulgaria; (E.D.); (G.G.); (P.P.)
| | - Georgi Grancharov
- Institute of Polymers, Bulgarian Academy of Sciences, “Akad. G. Bonchev” Street., bl. 103A, 1113 Sofia, Bulgaria; (E.D.); (G.G.); (P.P.)
| | - Denitsa Momekova
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav Street, 1000 Sofia, Bulgaria;
| | - Petar Petrov
- Institute of Polymers, Bulgarian Academy of Sciences, “Akad. G. Bonchev” Street., bl. 103A, 1113 Sofia, Bulgaria; (E.D.); (G.G.); (P.P.)
| | - Stanislav Rangelov
- Institute of Polymers, Bulgarian Academy of Sciences, “Akad. G. Bonchev” Street., bl. 103A, 1113 Sofia, Bulgaria; (E.D.); (G.G.); (P.P.)
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2
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Wang Q, Atluri K, Tiwari AK, Babu RJ. Exploring the Application of Micellar Drug Delivery Systems in Cancer Nanomedicine. Pharmaceuticals (Basel) 2023; 16:ph16030433. [PMID: 36986532 PMCID: PMC10052155 DOI: 10.3390/ph16030433] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023] Open
Abstract
Various formulations of polymeric micelles, tiny spherical structures made of polymeric materials, are currently being investigated in preclinical and clinical settings for their potential as nanomedicines. They target specific tissues and prolong circulation in the body, making them promising cancer treatment options. This review focuses on the different types of polymeric materials available to synthesize micelles, as well as the different ways that micelles can be tailored to be responsive to different stimuli. The selection of stimuli-sensitive polymers used in micelle preparation is based on the specific conditions found in the tumor microenvironment. Additionally, clinical trends in using micelles to treat cancer are presented, including what happens to micelles after they are administered. Finally, various cancer drug delivery applications involving micelles are discussed along with their regulatory aspects and future outlooks. As part of this discussion, we will examine current research and development in this field. The challenges and barriers they may have to overcome before they can be widely adopted in clinics will also be discussed.
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Affiliation(s)
- Qi Wang
- Department of Drug Discovery and Development, Auburn University, Auburn, AL 36849, USA
| | - Keerthi Atluri
- Product Development Department, Alcami Corporation, Morrisville, NC 27560, USA
| | - Amit K. Tiwari
- Department of Pharmacology and Experimental Therapeutics, University of Toledo, Toledo, OH 43614, USA
- Department of Cell and Cancer Biology, University of Toledo, Toledo, OH 43614, USA
| | - R. Jayachandra Babu
- Department of Drug Discovery and Development, Auburn University, Auburn, AL 36849, USA
- Correspondence:
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Amphiphilic N-oxyethylimidazolium calixarenes: Synthesis, micellar solubilization and molecular recognition of Adenine-containing nucleotides. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129236] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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4
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Seripracharat C, Sinthuvanich C, Karpkird T. Cationic cyclodextrin-adamantane poly(vinyl alcohol)-poly(ethylene glycol) assembly for siRNA delivery. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2021.103052] [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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Rajmane A, Jadhav S, Kumbhar A. N, O-polydentate ligands for palladium-catalyzed cross-coupling reactions (Part III). J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2021.122147] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Jimaja S, Varlas S, Foster JC, Taton D, Dove AP, O'Reilly RK. Stimuli-responsive and core cross-linked micelles developed by NiCCo-PISA of helical poly(aryl isocyanide)s. Polym Chem 2022; 13:4047-4053. [PMID: 35923350 PMCID: PMC9274662 DOI: 10.1039/d2py00397j] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 06/12/2022] [Indexed: 12/03/2022]
Abstract
We report the synthesis of redox- and pH-sensitive block copolymer micelles that contain chiral cores composed of helical poly(aryl isocyanide)s. Pentafluorophenyl (PFP) ester-containing micelles synthesised via nickel-catalysed coordination polymerisation-induced self-assembly (NiCCo-PISA) of helical poly(aryl isocyanide) amphiphilic diblock copolymers are modified post-polymerisation with various diamines to introduce cross-links and/or achieve stimulus-sensitive nanostructures. The successful introduction of the diamines is confirmed by Fourier-transform infrared spectroscopy (FT-IR), while the stabilisation effect of the cross-linking is explored by dynamic light scattering (DLS). The retention of the helicity of the core-forming polymer block is verified by circular dichroism (CD) spectroscopy and the stimuli-responsiveness of the nanoparticles towards a reducing agent (l-glutathione, GSH) and pH is evaluated by following the change in the size of the nanoparticles by DLS. These stimuli-responsive nanoparticles could find use in applications such as drug delivery, nanosensors or biological imaging. Spherical micelles with a helical core synthesised by NiCCo-PISA are functionalised with different cross-linkers to make stimulus-sensitive nanostructures. ![]()
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Affiliation(s)
- Sètuhn Jimaja
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK
- School of Chemistry, University of Birmingham, Edgbaston B15 2TT, UK
- Laboratoire de Chimie des Polymères Organiques, Université de Bordeaux/CNRS École Nationale Supérieure de Chimie, de Biologie & de Physique, 33607 Cedex Pessac, France
| | - Spyridon Varlas
- School of Chemistry, University of Birmingham, Edgbaston B15 2TT, UK
| | - Jeffrey C. Foster
- School of Chemistry, University of Birmingham, Edgbaston B15 2TT, UK
| | - Daniel Taton
- Laboratoire de Chimie des Polymères Organiques, Université de Bordeaux/CNRS École Nationale Supérieure de Chimie, de Biologie & de Physique, 33607 Cedex Pessac, France
| | - Andrew P. Dove
- School of Chemistry, University of Birmingham, Edgbaston B15 2TT, UK
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7
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Stimuli-responsive supramolecular assemblies via self-assembly of adamantane-containing block copolymers. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.05.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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8
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Facile approach to the fabrication of 3D cellulose nanofibrils (CNFs) reinforced poly(vinyl alcohol) hydrogel with ideal biocompatibility. Carbohydr Polym 2017; 173:547-555. [DOI: 10.1016/j.carbpol.2017.06.036] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 06/08/2017] [Accepted: 06/08/2017] [Indexed: 11/21/2022]
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9
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Al-Shereiqi AS, Boyd BJ, Saito K. Photo-Switchable Self-Assemblies Based on Thymine-Containing Bolaamphiphiles. Chempluschem 2017; 82:1135-1144. [PMID: 31957328 DOI: 10.1002/cplu.201700207] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Indexed: 11/09/2022]
Abstract
The photoswitching of photosensitive bolaamphiphiles based on thymine was investigated. Topochemical principles were applied to create light-responsive supra-amphiphiles by the utilisation of dynamic covalent bonds created by the photo-dimerisation of a DNA base, thymine. In order to induce the photo-dimerisation of thymine, two bolaamphiphilic molecules were designed and synthesised to meet the required [2 π+2 π] photo-cycloaddition conditions. The amphiphiles were synthesised with different spacers and their photo-reversibility and morphologies were studied by using UV/Vis, NMR and infrared spectroscopy, rheometry, dynamic light scattering and transmission electron microscopy.
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Affiliation(s)
| | - Ben J Boyd
- Drug Delivery, Disposition and Dynamics and ARC Centre of Excellence, in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC, 3052, Australia
| | - Kei Saito
- School of Chemistry, Monash University, Clayton, VIC, 3800, Australia
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Patil NG, Basutkar NB, Ambade AV. Copper and silver nanoparticles stabilized by bistriazole-based dendritic amphiphile micelles for 4-nitrophenol reduction. NEW J CHEM 2017. [DOI: 10.1039/c7nj00605e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Copper and silver nanoparticles stabilized on dendritic amphiphiles catalyzed 4-nitrophenol reduction at the ppm level, with particle size influencing catalytic efficiency.
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Affiliation(s)
- Naganath G. Patil
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Dr Homi Bhabha Road
- Pune-411008
- India
| | - Nitin B. Basutkar
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Dr Homi Bhabha Road
- Pune-411008
- India
| | - Ashootosh V. Ambade
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Dr Homi Bhabha Road
- Pune-411008
- India
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12
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Stoffelen C, Huskens J. Soft Supramolecular Nanoparticles by Noncovalent and Host-Guest Interactions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:96-119. [PMID: 26584451 DOI: 10.1002/smll.201501348] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 06/26/2015] [Indexed: 06/05/2023]
Abstract
Supramolecular chemistry provides a tool for the formation of highly ordered structures by means of noncovalent interactions. Soft supramolecular nanoparticles are self-assembled nanoassemblies based on small building blocks and stabilized by basic noncovalent interactions, selective host-guest interactions, or a combination of different interaction types. This review provides an overview of the existing approaches for the formation of supramolecular nanoparticles by various types of noncovalent interactions, with a strong focus on host-guest-mediated assemblies. The approaches are ordered based on the nature of the stabilizing supramolecular interaction, while focusing on the aspects that determine the particle structure. Where applicable, the use of these self-assembled nanostructures as vectors in molecular diagnostics and therapeutics is described as well. The stable yet reversible nature of supramolecular interactions and their chemical flexibility offer great prospects for the development of highly engineered nanoparticles which are compatible with the complexity of living systems.
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Affiliation(s)
- Carmen Stoffelen
- Molecular Nanofabrication Group, MESA+ Institute for Nanotechnology, University of Twente, P.O. BOX 217, 7500, AE, Enschede, The Netherlands
| | - Jurriaan Huskens
- Molecular Nanofabrication Group, MESA+ Institute for Nanotechnology, University of Twente, P.O. BOX 217, 7500, AE, Enschede, The Netherlands
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13
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Yu H, Sun J, Zhang Y, Zhang G, Chu Y, Zhuo R, Jiang X. pH- and β-cyclodextrin-responsive micelles based on polyaspartamide derivatives as drug carrier. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27584] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Huan Yu
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
| | - Jian Sun
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
| | - Yunti Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
| | - Guangyan Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Department of Light Industry; Hubei University of Technology; Wuhan 430068 People's Republic of China
| | - Yanfeng Chu
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
| | - Renxi Zhuo
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
| | - Xulin Jiang
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
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14
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Al-Shereiqi AS, Boyd BJ, Saito K. Photo-responsive self-assemblies based on bio-inspired DNA-base containing bolaamphiphiles. Chem Commun (Camb) 2015; 51:5460-2. [DOI: 10.1039/c4cc08580a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photo-responsive thymine incorporated bolaamphiphiles/superamphiphiles that can transfrom the aggregation morphology into spherical structures from ribbon-like structures by UV irradiation were investigated.
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Affiliation(s)
| | - Ben J. Boyd
- Drug Delivery
- Disposition and Dynamics
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Parkville
| | - Kei Saito
- School of Chemistry
- Monash University
- Clayton
- Australia
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15
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Zhou M, Wang W, Yang D, Qiu X. Preparation of a new lignin-based anionic/cationic surfactant and its solution behaviour. RSC Adv 2015. [DOI: 10.1039/c4ra10524a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The lignin-based cationic/anionic surfactant CA-SLs have a stronger ability to lower the surface tension at the air/water interface compared with SL–PEG, but a weaker one than CTAB.
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Affiliation(s)
- Mingsong Zhou
- State School of Chemistry and Chemical Engineering
- Key Lab of Pulp and Paper Engineering
- South China University of Technology
- Guangzhou
- People's Republic of China
| | - Wenli Wang
- State School of Chemistry and Chemical Engineering
- Key Lab of Pulp and Paper Engineering
- South China University of Technology
- Guangzhou
- People's Republic of China
| | - Dongjie Yang
- State School of Chemistry and Chemical Engineering
- Key Lab of Pulp and Paper Engineering
- South China University of Technology
- Guangzhou
- People's Republic of China
| | - Xueqing Qiu
- State School of Chemistry and Chemical Engineering
- Key Lab of Pulp and Paper Engineering
- South China University of Technology
- Guangzhou
- People's Republic of China
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16
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Self-assembly study and formation of hydrophobized PVA dense and stable nanoparticles loaded with cholesterol or a steroid-type drug. J Colloid Interface Sci 2014; 428:57-62. [DOI: 10.1016/j.jcis.2014.04.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 04/13/2014] [Accepted: 04/16/2014] [Indexed: 11/19/2022]
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17
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pH-responsive star-shaped functionalized poly(ethylene glycol)-b-poly(ε-caprolactone) with amino groups. Colloid Polym Sci 2014. [DOI: 10.1007/s00396-014-3261-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Chu Y, Yu H, Ma Y, Zhang Y, Chen W, Zhang G, Wei H, Zhang X, Zhuo R, Jiang X. Synthesis and characterization of biodegradable pH and reduction dual-sensitive polymeric micelles for doxorubicin delivery. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27192] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yanfeng Chu
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
| | - Huan Yu
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
| | - Yingying Ma
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
| | - Yunti Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
| | - Weihai Chen
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
| | - Guangyan Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
- Hubei Provincial Key Laboratory of Green Materials for Light Industry; Hubei University of Technology; Wuhan 430068 People's Republic of China
| | - Hua Wei
- Department of Bioengineering and Molecular Engineering and Sciences Institute; University of Washington; Seattle Washington 98195
| | - Xianzheng Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
| | - Renxi Zhuo
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
| | - Xulin Jiang
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
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Hong S, Liu M, Shuai Y, Wang Z, Shi L, Deng W. Amino acid-modified cyclodextrins as ligands for Heck reaction in water. J INCL PHENOM MACRO 2014. [DOI: 10.1007/s10847-014-0409-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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20
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Stimuli-induced gel-sol transition of supramolecular hydrogels based on β-cyclodextrin polymer/ferrocene-containing triblock copolymer inclusion complexes. JOURNAL OF POLYMER RESEARCH 2014. [DOI: 10.1007/s10965-014-0359-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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21
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Binauld S, Stenzel MH. Acid-degradable polymers for drug delivery: a decade of innovation. Chem Commun (Camb) 2013; 49:2082-102. [DOI: 10.1039/c2cc36589h] [Citation(s) in RCA: 312] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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22
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Kulkarni A, Deng W, Hyun SH, Thompson DH. Development of a low toxicity, effective pDNA vector based on noncovalent assembly of bioresponsive amino-β-cyclodextrin:adamantane-poly(vinyl alcohol)-poly(ethylene glycol) transfection complexes. Bioconjug Chem 2012; 23:933-40. [PMID: 22551467 DOI: 10.1021/bc2005158] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A host:guest-derived gene delivery vector has been developed, based on the self-assembly of cationic β-CD derivatives with a poly(vinyl alcohol) (MW 27 kDa) (PVA) main chain polymer bearing poly(ethylene glycol) (MW 750) (PEG) or MW 2000 PEG and acid-labile adamantane-modified (Ad) grafts through an acid-sensitive benzylidene acetal linkage. These components were investigated for their ability to promote supramolecular complex formation with pDNA using two different assembly schemes, involving either precomplexation of the pendent Ad-PVA-PEG polymer with the cationic β-CD derivatives before pDNA condensation (method A) or pDNA condensation with the cationic β-CD derivatives prior to addition of Ad-PVA-PEG to engage host:guest complexation (method B). The pendent polymers were observed to degrade under acidic conditions while remaining intact for more than 5 days at pH 7. HeLa cell culture data show that these materials have 10(3)-fold lower cytotoxicities than 25 kDa bPEI while maintaining transfection efficiencies that are superior to those observed for this benchmark cationic polymer transfection reagent when the method A assembly scheme is employed. These findings suggest that degradable cationic polymer constructs employing multivalent host:guest interactions may be an effective and low-toxicity vehicle for delivering nucleic acid cargo to target cells.
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Affiliation(s)
- Aditya Kulkarni
- Departments of Chemistry and Biomedical Engineering, Purdue University , 560 Oval Drive, West Lafayette, Indiana 47907, United States
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