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Lin Y, Wu B, Zeng Y, Yuan H, Ji C, Liu Z, Sui Y, Yin T, Kong X, Zhu Y, Chen J, Lang C. Artificial Channels Based on Bottlebrush Polymers: Enhanced Ion Transport Through Polymer Topology Control. Angew Chem Int Ed Engl 2024; 63:e202408558. [PMID: 38842471 DOI: 10.1002/anie.202408558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 06/03/2024] [Accepted: 06/03/2024] [Indexed: 06/07/2024]
Abstract
Synthetic structures mimicking the transport function of natural ion channel proteins have a wide range of applications, including therapeutic treatments, separation membranes, sensing, and biotechnologies. However, the development of polymer-based artificial channels has been hampered due to the limitation on available models. In this study, we demonstrate the great potential of bottlebrush polymers as accessible and versatile molecular scaffolds for developing efficient artificial ion channels. Adopting the bottlebrush configuration enhanced ion transport activity of the channels compared to their linear analogs. Matching the structure of lipid bilayers, the bottlebrush channel with a hydrophilic-hydrophobic-hydrophilic triblock architecture exhibited the highest activity among the series. Functionalized with urea groups, these channels displayed high anion selectivity. Additionally, we illustrated that the transport properties could be fine-tuned by modifying the chemistry of ion binding sites. This work not only highlights the importance of polymer topology control in channel design, but also reveals the great potential for further developing bottlebrush channels with customized features and diverse functionalities.
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Affiliation(s)
- Yangyang Lin
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Bei Wu
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | | | - Haoxuan Yuan
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Changxing Ji
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Ziqi Liu
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Yan Sui
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Tingting Yin
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Xian Kong
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Yuting Zhu
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Jie Chen
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Chao Lang
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
- Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou, 510640, China
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Liu H, Xu S, Yong T, Wei Z, Bie N, Zhang X, Li X, Li J, Li S, Wang S, Zhao Y, Yang X, Gan L. Hydrophobicity-Adaptive Polymers Trigger Fission of Tumor-Cell-Derived Microparticles for Enhanced Anticancer Drug Delivery. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211980. [PMID: 37755231 DOI: 10.1002/adma.202211980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 08/25/2023] [Indexed: 09/28/2023]
Abstract
Tumor-cell-derived microparticles (MPs) can function as anticancer drug-delivery carriers. However, short blood circulation time, large-size-induced insufficient tumor accumulation and penetration into tumor parenchyma, as well as limited cellular internalization by tumor cells and cancer stem cells (CSCs), and difficult intracellular drug release restrict the anticancer activity of tumor-cell-derived MP-based drug-delivery systems. In this work, hydrophobicity-adaptive polymers based on poly(N-isopropylacrylamide) are anchored to tumor-cell-derived MPs for enhanced delivery of the anticancer drug doxorubicin (DOX). The polymers are hydrophilic in blood to prolong the circulation time of DOX-loaded MPs (DOX@MPs), while rapidly switching to hydrophobic at the tumor acidic microenvironment. The hydrophobicity of polymers drives the fission of tumor-cell-derived MPs to form small vesicles, facilitating tumor accumulation, deep tumor penetration, and efficient internalization of DOX@MPs into tumor cells and CSCs. Subsequently, the hydrophobicity of polymers in acidic lysosomes further promotes DOX release to nuclei for strong cytotoxicity against tumor cells and CSCs. The work provides a facile and simple strategy for improved anticancer drug delivery of tumor-cell-derived MPs.
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Affiliation(s)
- Haojie Liu
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Shiyi Xu
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Tuying Yong
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Huazhong University of Science and Technology, Wuhan, 430074, China
- Hubei Bioinformatics and Molecular Imaging Key Laboratory, Huazhong University of Science and Technology, Wuhan, 430074, China
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zhaohan Wei
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Nana Bie
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xiaoqiong Zhang
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xin Li
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jianye Li
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Shiyu Li
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Sheng Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yanbing Zhao
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Huazhong University of Science and Technology, Wuhan, 430074, China
- Hubei Bioinformatics and Molecular Imaging Key Laboratory, Huazhong University of Science and Technology, Wuhan, 430074, China
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xiangliang Yang
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Huazhong University of Science and Technology, Wuhan, 430074, China
- Hubei Bioinformatics and Molecular Imaging Key Laboratory, Huazhong University of Science and Technology, Wuhan, 430074, China
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Lu Gan
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Huazhong University of Science and Technology, Wuhan, 430074, China
- Hubei Bioinformatics and Molecular Imaging Key Laboratory, Huazhong University of Science and Technology, Wuhan, 430074, China
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Huazhong University of Science and Technology, Wuhan, 430074, China
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Rusli W, Benjamin Tan SW, Parthiban A, van Herk AM. Free radical solution copolymerization of monomers of dissimilar reactivity - influencing chemical composition distribution and properties of copolymers of methyl methacrylate and N-vinyl imidazole by varying monomer feeding profiles. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Orekhov PS, Bozdaganyan ME, Voskoboynikova N, Mulkidjanian AY, Karlova MG, Yudenko A, Remeeva A, Ryzhykau YL, Gushchin I, Gordeliy VI, Sokolova OS, Steinhoff HJ, Kirpichnikov MP, Shaitan KV. Mechanisms of Formation, Structure, and Dynamics of Lipoprotein Discs Stabilized by Amphiphilic Copolymers: A Comprehensive Review. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:361. [PMID: 35159706 PMCID: PMC8838559 DOI: 10.3390/nano12030361] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 01/15/2022] [Accepted: 01/20/2022] [Indexed: 12/16/2022]
Abstract
Amphiphilic copolymers consisting of alternating hydrophilic and hydrophobic units account for a major recent methodical breakthrough in the investigations of membrane proteins. Styrene-maleic acid (SMA), diisobutylene-maleic acid (DIBMA), and related copolymers have been shown to extract membrane proteins directly from lipid membranes without the need for classical detergents. Within the particular experimental setup, they form disc-shaped nanoparticles with a narrow size distribution, which serve as a suitable platform for diverse kinds of spectroscopy and other biophysical techniques that require relatively small, homogeneous, water-soluble particles of separate membrane proteins in their native lipid environment. In recent years, copolymer-encased nanolipoparticles have been proven as suitable protein carriers for various structural biology applications, including cryo-electron microscopy (cryo-EM), small-angle scattering, and conventional and single-molecule X-ray diffraction experiments. Here, we review the current understanding of how such nanolipoparticles are formed and organized at the molecular level with an emphasis on their chemical diversity and factors affecting their size and solubilization efficiency.
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Affiliation(s)
- Philipp S. Orekhov
- Faculty of Biology, Lomonosov Moscow State University, 119991 Moscow, Russia; (M.E.B.); (M.G.K.); (O.S.S.); (M.P.K.)
- Faculty of Biology, Shenzhen MSU-BIT University, Shenzhen 518172, China
- Institute of Personalized Medicine, Sechenov University, 119146 Moscow, Russia
| | - Marine E. Bozdaganyan
- Faculty of Biology, Lomonosov Moscow State University, 119991 Moscow, Russia; (M.E.B.); (M.G.K.); (O.S.S.); (M.P.K.)
- Faculty of Biology, Shenzhen MSU-BIT University, Shenzhen 518172, China
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Natalia Voskoboynikova
- Department of Physics, University of Osnabrück, Barbarastrasse 7, 49076 Osnabrück, Germany; (N.V.); (A.Y.M.); (H.-J.S.)
| | - Armen Y. Mulkidjanian
- Department of Physics, University of Osnabrück, Barbarastrasse 7, 49076 Osnabrück, Germany; (N.V.); (A.Y.M.); (H.-J.S.)
- Faculty of Bioengineering and Bioinformatics and Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Maria G. Karlova
- Faculty of Biology, Lomonosov Moscow State University, 119991 Moscow, Russia; (M.E.B.); (M.G.K.); (O.S.S.); (M.P.K.)
| | - Anna Yudenko
- Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia; (A.Y.); (A.R.); (Y.L.R.); (I.G.); (V.I.G.)
| | - Alina Remeeva
- Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia; (A.Y.); (A.R.); (Y.L.R.); (I.G.); (V.I.G.)
| | - Yury L. Ryzhykau
- Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia; (A.Y.); (A.R.); (Y.L.R.); (I.G.); (V.I.G.)
| | - Ivan Gushchin
- Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia; (A.Y.); (A.R.); (Y.L.R.); (I.G.); (V.I.G.)
| | - Valentin I. Gordeliy
- Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia; (A.Y.); (A.R.); (Y.L.R.); (I.G.); (V.I.G.)
- Institute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich, 52428 Jülich, Germany
- Institut de Biologie Structurale J.-P. Ebel, Université Grenoble Alpes-CEA-CNRS, 38000 Grenoble, France
- JuStruct: Jülich Center for Structural Biology, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - Olga S. Sokolova
- Faculty of Biology, Lomonosov Moscow State University, 119991 Moscow, Russia; (M.E.B.); (M.G.K.); (O.S.S.); (M.P.K.)
- Faculty of Biology, Shenzhen MSU-BIT University, Shenzhen 518172, China
| | - Heinz-Jürgen Steinhoff
- Department of Physics, University of Osnabrück, Barbarastrasse 7, 49076 Osnabrück, Germany; (N.V.); (A.Y.M.); (H.-J.S.)
| | - Mikhail P. Kirpichnikov
- Faculty of Biology, Lomonosov Moscow State University, 119991 Moscow, Russia; (M.E.B.); (M.G.K.); (O.S.S.); (M.P.K.)
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Konstantin V. Shaitan
- Faculty of Biology, Lomonosov Moscow State University, 119991 Moscow, Russia; (M.E.B.); (M.G.K.); (O.S.S.); (M.P.K.)
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Nature of bilayer lipids affects membranes deformation and pore resealing during nanoparticle penetration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2022; 132:112530. [DOI: 10.1016/j.msec.2021.112530] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 10/17/2021] [Accepted: 10/30/2021] [Indexed: 01/31/2023]
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Dubashynskaya NV, Raik SV, Dubrovskii YA, Demyanova EV, Shcherbakova ES, Poshina DN, Shasherina AY, Anufrikov YA, Skorik YA. Hyaluronan/Diethylaminoethyl Chitosan Polyelectrolyte Complexes as Carriers for Improved Colistin Delivery. Int J Mol Sci 2021; 22:8381. [PMID: 34445088 PMCID: PMC8395075 DOI: 10.3390/ijms22168381] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 07/27/2021] [Accepted: 07/30/2021] [Indexed: 12/14/2022] Open
Abstract
Improving the therapeutic characteristics of antibiotics is an effective strategy for controlling the growth of multidrug-resistant Gram-negative microorganisms. The purpose of this study was to develop a colistin (CT) delivery system based on hyaluronic acid (HA) and the water-soluble cationic chitosan derivative, diethylaminoethyl chitosan (DEAECS). The CT delivery system was a polyelectrolyte complex (PEC) obtained by interpolymeric interactions between the HA polyanion and the DEAECS polycation, with simultaneous inclusion of positively charged CT molecules into the resulting complex. The developed PEC had a hydrodynamic diameter of 210-250 nm and a negative surface charge (ζ-potential = -19 mV); the encapsulation and loading efficiencies were 100 and 16.7%, respectively. The developed CT delivery systems were characterized by modified release (30-40% and 85-90% of CT released in 15 and 60 min, respectively) compared to pure CT (100% CT released in 15 min). In vitro experiments showed that the encapsulation of CT in polysaccharide carriers did not reduce its antimicrobial activity, as the minimum inhibitory concentrations against Pseudomonas aeruginosa of both encapsulated CT and pure CT were 1 μg/mL.
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Affiliation(s)
- Natallia V. Dubashynskaya
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoi VO 31, 199004 St. Petersburg, Russia; (N.V.D.); (S.V.R.); (D.N.P.)
| | - Sergei V. Raik
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoi VO 31, 199004 St. Petersburg, Russia; (N.V.D.); (S.V.R.); (D.N.P.)
| | - Yaroslav A. Dubrovskii
- Almazov National Medical Research Centre, Akkuratova 2, 197341 St. Petersburg, Russia;
- Institute of Chemistry, St. Petersburg State University, Universitetskii 26, Peterhof, 198504 St. Petersburg, Russia; (A.Y.S.); (Y.A.A.)
- Research and Training Center of Molecular and Cellular Technologies, St. Petersburg State Chemical Pharmaceutical University, Prof. Popova 14, 197376 St. Petersburg, Russia
| | - Elena V. Demyanova
- State Research Institute of Highly Pure Biopreparations, Pudozhsakya 7, 197110 St. Petersburg, Russia; (E.V.D.); (E.S.S.)
| | - Elena S. Shcherbakova
- State Research Institute of Highly Pure Biopreparations, Pudozhsakya 7, 197110 St. Petersburg, Russia; (E.V.D.); (E.S.S.)
| | - Daria N. Poshina
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoi VO 31, 199004 St. Petersburg, Russia; (N.V.D.); (S.V.R.); (D.N.P.)
| | - Anna Y. Shasherina
- Institute of Chemistry, St. Petersburg State University, Universitetskii 26, Peterhof, 198504 St. Petersburg, Russia; (A.Y.S.); (Y.A.A.)
| | - Yuri A. Anufrikov
- Institute of Chemistry, St. Petersburg State University, Universitetskii 26, Peterhof, 198504 St. Petersburg, Russia; (A.Y.S.); (Y.A.A.)
| | - Yury A. Skorik
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoi VO 31, 199004 St. Petersburg, Russia; (N.V.D.); (S.V.R.); (D.N.P.)
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Dubashynskaya NV, Raik SV, Dubrovskii YA, Shcherbakova ES, Demyanova EV, Shasherina AY, Anufrikov YA, Poshina DN, Dobrodumov AV, Skorik YA. Hyaluronan/colistin polyelectrolyte complexes: Promising antiinfective drug delivery systems. Int J Biol Macromol 2021; 187:157-165. [PMID: 34298050 DOI: 10.1016/j.ijbiomac.2021.07.114] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/06/2021] [Accepted: 07/16/2021] [Indexed: 02/07/2023]
Abstract
Nanotechnology-based modification of known antimicrobial agents is a rational and straightforward way to improve their safety and effectiveness. The aim of this study was to develop colistin (CT)-loaded polymeric carriers based on hyaluronic acid (HA) for potential application as antimicrobial agents against multi-resistant gram-negative microorganisms (including ESKAPE pathogens). CT-containing particles were obtained via a polyelectrolyte interaction between protonated CT amino groups and HA carboxyl groups (the CT-HA complex formation constant [logKCT-HA] was about 5.0). The resulting polyelectrolyte complexes had a size of 210-250 nm and a negative charge (ζ-potential -19 mV), with encapsulation and loading efficiencies of 100% and 20%, respectively. The developed CT delivery systems were characterized by modified release (45% and 85% of CT released in 15 and 60 min, respectively) compared to pure CT (100% CT released in 15 min). In vitro tests showed that the encapsulation of CT in polymer particles did not reduce its pharmacological activity; the minimum inhibitory concentrations of both encapsulated CT and pure CT were 1 μg/mL (against Pseudomonas aeruginosa).
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Affiliation(s)
- Natallia V Dubashynskaya
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoi VO 31, St. Petersburg 199004, Russian Federation
| | - Sergei V Raik
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoi VO 31, St. Petersburg 199004, Russian Federation
| | - Yaroslav A Dubrovskii
- Institute of Chemistry, St. Petersburg State University, Universitetskii 26, Peterhof, St. Petersburg 198504, Russian Federation; Almazov National Medical Research Centre, Akkuratova 2, St. Petersburg 197341, Russian Federation; St. Petersburg State Chemical Pharmaceutical University, Prof. Popova 14, St. Petersburg 197376, Russian Federation
| | - Elena S Shcherbakova
- State Research Institute of Highly Pure Biopreparations, Pudozhsakya 7, St Petersburg 197110, Russian Federation
| | - Elena V Demyanova
- State Research Institute of Highly Pure Biopreparations, Pudozhsakya 7, St Petersburg 197110, Russian Federation
| | - Anna Y Shasherina
- Institute of Chemistry, St. Petersburg State University, Universitetskii 26, Peterhof, St. Petersburg 198504, Russian Federation
| | - Yuri A Anufrikov
- Institute of Chemistry, St. Petersburg State University, Universitetskii 26, Peterhof, St. Petersburg 198504, Russian Federation
| | - Daria N Poshina
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoi VO 31, St. Petersburg 199004, Russian Federation
| | - Anatoliy V Dobrodumov
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoi VO 31, St. Petersburg 199004, Russian Federation
| | - Yury A Skorik
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoi VO 31, St. Petersburg 199004, Russian Federation.
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Yong H, Molcrette B, Sperling M, Montel F, Sommer JU. Regulating the Translocation of DNA through Poly( N-isopropylacrylamide)-Decorated Switchable Nanopores by Cononsolvency Effect. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00215] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Huaisong Yong
- Leibniz-Institut für Polymerforschung Dresden e.V., Dresden 01069, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden 01069, Germany
| | - Bastien Molcrette
- Université de Lyon, École Normale Supérieure de Lyon, Université Claude Bernard, CNRS, Laboratoire de Physique, Lyon F-69342, France
| | - Marcel Sperling
- Fraunhofer-Institut für Angewandte Polymerforschung, Potsdam-Golm 14476, Germany
| | - Fabien Montel
- Université de Lyon, École Normale Supérieure de Lyon, Université Claude Bernard, CNRS, Laboratoire de Physique, Lyon F-69342, France
| | - Jens-Uwe Sommer
- Leibniz-Institut für Polymerforschung Dresden e.V., Dresden 01069, Germany
- Institute for Theoretical Physics, Technische Universität Dresden, Dresden 01069, Germany
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Ahmad W, Shetab Boushehri MA, Lamprecht A. Polymeric matrix hydrophobicity governs saponin packing-density on nanoparticle surface and the subsequent biological interactions. J Colloid Interface Sci 2021; 596:500-513. [PMID: 33878541 DOI: 10.1016/j.jcis.2021.03.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 02/22/2021] [Accepted: 03/06/2021] [Indexed: 10/21/2022]
Abstract
This study investigated the loading behavior of Quillaja saponin as a model surface-active cargo on (NP) nanoparticles prepared with various hydrophobic polymers and using different organic solvents through emulsification/solvent evaporation, and the impact of NP surface hydrophobicity upon the cytotoxic and hemolytic properties of the loaded entity. A superficial monolayered arrangement of saponins on NP was established (R2 > 0.9) for all NP, as the saponin loading values complied with the Langmuir adsorption isotherm over the entire concentration range. Next, based on the measurement of interfacial tension between formulation phases, and the subsequent use of Gibb's adsorption isotherm, the packing density (Гexc) and loading of saponins on various nanospheres could be predicted with good correlation with the actual values (R2 > 0.95). The results demonstrated that the hydrophobicity of the polymeric matrix was the major determinant of saponin packing density on the nanospheres. Finally, the impact of NP surface properties upon saponin biological interactions was investigated, where a linear correlation was found between the NP surface hydrophobicity and their hemolytic properties (R2 ≅ 0.79), and cytotoxicity against two cancer cell lines (R2 > 0.76). The surface hydrophobicity of the polymeric NP seemingly governed the NP-cell membrane binding, which in turn determined the amount of membrane-bound saponins per unit NP surface area. As the saponins exert their cytotoxicity mainly through strong permeabilization of the cell membrane, a higher amount of NP-membrane association governed by a more hydrophobic matrix can lead to higher levels of cytotoxicity. These findings highlight the importance of a detailed characterization of NP surface properties, particularly in case of surface-active cargos, for these dictate the side effects and biological interactions of the delivery system.
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Affiliation(s)
- Waqas Ahmad
- Department of Pharmaceutics, Institute of Pharmacy, University of Bonn, Bonn, Germany
| | | | - Alf Lamprecht
- Department of Pharmaceutics, Institute of Pharmacy, University of Bonn, Bonn, Germany; PEPITE EA4267, Université de Bourgogne/Franche-Comté, Besançon, France.
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10
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Wang TY, Tsao HK, Sheng YJ. Perforated Vesicles of ABA Triblock Copolymers with ON/OFF-Switchable Nanopores. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01550] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ting-Ya Wang
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan, ROC
| | - Heng-Kwong Tsao
- Department of Chemical and Materials Engineering, National Central University, Taoyuan 32001, Taiwan, ROC
| | - Yu-Jane Sheng
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan, ROC
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11
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Gardey E, Sobotta FH, Hoeppener S, Bruns T, Stallmach A, Brendel JC. Influence of Core Cross-Linking and Shell Composition of Polymeric Micelles on Immune Response and Their Interaction with Human Monocytes. Biomacromolecules 2020; 21:1393-1406. [PMID: 32084317 DOI: 10.1021/acs.biomac.9b01656] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Block copolymer micelles have received increasing attention in the last decades, in particular for their appealing properties in nanomedicine. However, systematic investigations of the interaction between polymeric micelles and immune cells are still rare. Therefore, broader studies comparing the structural effects remain inevitable for a comprehensive understanding of the immune response and for the design of efficient, nonimmunogenic delivery systems. Here, we present novel block copolymer micelles with the same hydrophobic core, based on a copolymer of BA and VDM, and various hydrophilic shells ranging from common PEG derivatives to morpholine-based materials. The influence of these shells on innate immune responses was studied in detail. In addition, we investigated the impact of micelle stability by varying the cross-linking density in the micellar core. Surprisingly, whereas different shells had only a minor impact on immune response, micelles with reduced cross-linking density considerably enhanced the release of cytokines from isolated human monocytes. Moreover, the uptake of non-cross-linked micelles by monocytes was significantly higher as compared to cross-linked materials. Our study emphasizes the importance of the micellar stability on the interaction with the immune system, which is the key for any stealth properties in vivo. Polymers based on morpholines result in a similar low response as the PEG derivative and may represent an interesting alternative to the common PEGylation.
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Affiliation(s)
- Elena Gardey
- Department of Internal Medicine IV (Gastroenterology, Hepatology, and Infectious Diseases), Jena University Hospital, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Jena, Germany
| | - Fabian H Sobotta
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Jena, Germany
| | - Stephanie Hoeppener
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Jena, Germany
| | - Tony Bruns
- Department of Internal Medicine IV (Gastroenterology, Hepatology, and Infectious Diseases), Jena University Hospital, Jena, Germany.,Medical Department III, University Hospital RWTH Aachen, Aachen, Germany
| | - Andreas Stallmach
- Department of Internal Medicine IV (Gastroenterology, Hepatology, and Infectious Diseases), Jena University Hospital, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Jena, Germany
| | - Johannes C Brendel
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Jena, Germany
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12
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Sarkar Y, Roy S, Majumder R, Das S, Bhalani DV, Ray A, Jewrajka SK, Parui PP. Protonation-induced pH increase at the triblock copolymer micelle interface for transient membrane permeability at neutral pH. SOFT MATTER 2020; 16:798-809. [PMID: 31834342 DOI: 10.1039/c9sm01002e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Achieving controlled membrane permeability using pH-responsive block copolymers is crucial for selective intercellular uptake. We have shown that the pH at the triblock-copolymer micelle interface as compared to its bulk pH can help regulate membrane permeability. The pH-dependent acid/base equilibriums of two different interface-interacting pH probes were determined in order to measure the interfacial pH for a pH-responsive triblock copolymer (TBP) micelle under a wide range of bulk pH (4.5-9.0). According to 1H NMR studies, both pH probes provided interfacial pH at a similar interfacial depth. We revealed that the protonation of the amine moiety at the micelle interface and the subsequent formation of a positive charge caused the interface to become relatively less acidic than that of the bulk as well as an increase in the bulk-to-interfacial pH deviation (ΔpH) from ∼0.9 to 1.9 with bulk pH reducing from 8.0 to 4.5. From the ΔpH vs. interface and bulk pH plots, the apparent and intrinsic protonations or positive charge formation pKa values for the micelle were estimated to be ∼7.3 and 6.0, respectively. When the TBP micelle interacted with an anionic large unilamellar vesicle (LUV) of a binary lipid (neutral and anionic) system at the bulk pH of 7.0, fluorescence leakage studies revealed that the pH increase at the micelle interface from that of the LUV interface (pH ∼ 5.5) made the micelle interface partially protonated/cationic, thereby exhibiting transient membrane permeability. Although the increasing interface protonation causes the interface to become relatively less acidic than the bulk at any bulk pH below 6.5, the pH increase at the micelle interface may not be sufficiently large to maintain the threshold for the amine-protonated condition for effecting transient leakage and therefore, a continuous leakage was observed due to the slow disruption of the lipid bilayer.
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Affiliation(s)
- Yeasmin Sarkar
- Department of Chemistry, Jadavpur University, Kolkata 700032, India.
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13
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Rasolonjatovo B, Illy N, Bennevault V, Mathé J, Midoux P, Le Gall T, Haudebourg T, Montier T, Lehn P, Pitard B, Cheradame H, Huin C, Guégan P. Temperature‐Sensitive Amphiphilic Non‐Ionic Triblock Copolymers for Enhanced In Vivo Skeletal Muscle Transfection. Macromol Biosci 2020; 20:e1900276. [DOI: 10.1002/mabi.201900276] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 10/30/2019] [Indexed: 01/23/2023]
Affiliation(s)
- Bazoly Rasolonjatovo
- LAMBE, CNRS, Université Evry, CEAUniversité Paris–Saclay 91025 Evry France
- LAMBE, UCPUniversité Paris–Seine 91025 Evry France
| | - Nicolas Illy
- Equipe Chimie des Polymères, Institut Parisien de Chimie Moléculaire, CNRS, Sorbonne Université 4 Place Jussieu 75005 Paris France
| | - Véronique Bennevault
- Equipe Chimie des Polymères, Institut Parisien de Chimie Moléculaire, CNRS, Sorbonne Université 4 Place Jussieu 75005 Paris France
- Université Evry 91025 Evry France
| | - Jérôme Mathé
- LAMBE, CNRS, Université Evry, CEAUniversité Paris–Saclay 91025 Evry France
- LAMBE, UCPUniversité Paris–Seine 91025 Evry France
| | - Patrick Midoux
- Centre de Biophysique MoléculaireCNRS UPR4301 45071 Orléans Cedex 02 France
| | - Tony Le Gall
- Groupe – Transfert de Gènes et Thérapie Génique, UMR 1078 – Génétique, Génomique Fonctionnelle et BiotechnologiesUniversité de Brest, INSERM, CHU de Brest 22 Avenue Camille Desmoulins 29238 Brest Cedex France
| | - Thomas Haudebourg
- CRCINA, INSERMUniversity of Angers, University of Nantes 49000 and 44000 Nantes France
| | - Tristan Montier
- Groupe – Transfert de Gènes et Thérapie Génique, UMR 1078 – Génétique, Génomique Fonctionnelle et BiotechnologiesUniversité de Brest, INSERM, CHU de Brest 22 Avenue Camille Desmoulins 29238 Brest Cedex France
| | - Pierre Lehn
- Groupe – Transfert de Gènes et Thérapie Génique, UMR 1078 – Génétique, Génomique Fonctionnelle et BiotechnologiesUniversité de Brest, INSERM, CHU de Brest 22 Avenue Camille Desmoulins 29238 Brest Cedex France
| | - Bruno Pitard
- CRCINA, INSERMUniversity of Angers, University of Nantes 49000 and 44000 Nantes France
| | - Herve Cheradame
- LAMBE, CNRS, Université Evry, CEAUniversité Paris–Saclay 91025 Evry France
- LAMBE, UCPUniversité Paris–Seine 91025 Evry France
| | - Cécile Huin
- Equipe Chimie des Polymères, Institut Parisien de Chimie Moléculaire, CNRS, Sorbonne Université 4 Place Jussieu 75005 Paris France
- Université Evry 91025 Evry France
| | - Philippe Guégan
- Equipe Chimie des Polymères, Institut Parisien de Chimie Moléculaire, CNRS, Sorbonne Université 4 Place Jussieu 75005 Paris France
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14
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Duan N, Sun Z, Ren Y, Liu Z, Liu L, Yan F. Imidazolium-based ionic polyurethanes with high toughness, tunable healing efficiency and antibacterial activities. Polym Chem 2020. [DOI: 10.1039/c9py01620a] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Ionic polyurethanes (PUs) with high toughness, fast self-healing ability, antibacterial activity and shape memory behaviors are synthesized.
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Affiliation(s)
- Ning Duan
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Zhe Sun
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Yongyuan Ren
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Ziyang Liu
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Lili Liu
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Feng Yan
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
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15
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Guo J, Qian Y, Sun B, Sun Z, Chen Z, Mao H, Wang B, Yan F. Antibacterial Amino Acid-Based Poly(ionic liquid) Membranes: Effects of Chirality, Chemical Bonding Type, and Application for MRSA Skin Infections. ACS APPLIED BIO MATERIALS 2019; 2:4418-4426. [DOI: 10.1021/acsabm.9b00619] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Jiangna Guo
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Yuanmei Qian
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Bin Sun
- Department of Plastic and Reconstructive Surgery, and Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China
| | - Zhe Sun
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Zhengsheng Chen
- Department of Plastic and Reconstructive Surgery, and Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China
| | - Hailei Mao
- Department of Anesthesiology and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Bin Wang
- Department of Plastic and Reconstructive Surgery, and Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China
| | - Feng Yan
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
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16
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Zhu Y, Yao L, Liu Z, Weng W, Cheng K. Electrical Potential Specified Release of BSA/Hep/Polypyrrole Composite Film and Its Cellular Responses. ACS APPLIED MATERIALS & INTERFACES 2019; 11:25457-25464. [PMID: 31282143 DOI: 10.1021/acsami.9b09333] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A facile strategy is needed for accurate time-space supply of suitable growth factors or drugs. Polypyrrole (PPy) was able to carry almost all kinds of negatively charged biomolecules through anodizing method, which made it an appropriate way for codeposition of multiple molecules. The difference in the conjugation between different molecules and PPy makes it possible for selective release when the redox state of PPy changes. In this work, bovine serum albumin (BSA) and heparin (Hep) were chosen to be the model molecules in view of their differences in the level of electronegativity and molecular weight. Double-layer deposition method was used to improve the biocompatibility of PPy/BSA/Hep film. It was found the content of BSA and Hep in the film can be controlled by regulating deposition current and time. BSA release was facilitated under positive voltage and then promote the proliferation of preosteoblasts, while Hep release was promoted under negative voltage and enhance cell differentiation. Our work provides a dual-molecule model in PPy for selective release and further explores the mechanism of release selectivity, this discovery has potential applications in tissue engineering and regenerative medicine.
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Affiliation(s)
- Yifei Zhu
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications , Zhejiang University , Hangzhou 310027 , China
| | - Lili Yao
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications , Zhejiang University , Hangzhou 310027 , China
| | - Zongguang Liu
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications , Zhejiang University , Hangzhou 310027 , China
| | - Wenjian Weng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications , Zhejiang University , Hangzhou 310027 , China
| | - Kui Cheng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications , Zhejiang University , Hangzhou 310027 , China
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17
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Eskandani Z, Le Gall T, Montier T, Lehn P, Montel F, Auvray L, Huin C, Guégan P. Polynucleotide transport through lipid membrane in the presence of starburst cyclodextrin-based poly(ethylene glycol)s. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2018; 41:132. [PMID: 30426391 DOI: 10.1140/epje/i2018-11743-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 10/12/2018] [Indexed: 06/09/2023]
Abstract
Symmetrical cyclodextrin-based 14-arm star polymers with poly(ethylene glycol) PEG branches were synthesized and characterized. Interactions of the star polymers with lipid bilayers were studied by the "black lipid membrane" technique in order to demonstrate the formation of monomolecular artificial channels. The conditions for the insertion are mainly based on dimensions and amphiphilic properties of the star polymers, in particular the molar mass of the water-soluble polymer branches. Translocation of single-strand DNA (ssDNA) through those synthetic nanopores was investigated, and the close dimension between the cross-section of ssDNA and the cyclodextrin cavity led to an energy barrier that slowed down the translocation process.
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Affiliation(s)
- Zahra Eskandani
- LAMBE, Univ Evry, CNRS, CEA, Université Paris-Saclay, 91025, Evry, France
- LAMBE, Université Cergy-Pontoise, Université Paris-Seine, 91025, Evry, France
| | - Tony Le Gall
- INSERM UMR 1078, Faculté de Médecine, Université de Bretagne Occidentale, Université Européenne de Bretagne, 22 avenue Camille Desmoulins, 29238, Brest Cedex 3, France
- Plateforme SynNanoVect, Biogenouest, SFR 148 ScInBioS, Université de Bretagne Occidentale, Faculté de Médecine, 22 avenue Camille Desmoulins, 29238, Brest Cedex 3, France
| | - Tristan Montier
- INSERM UMR 1078, Faculté de Médecine, Université de Bretagne Occidentale, Université Européenne de Bretagne, 22 avenue Camille Desmoulins, 29238, Brest Cedex 3, France
- Plateforme SynNanoVect, Biogenouest, SFR 148 ScInBioS, Université de Bretagne Occidentale, Faculté de Médecine, 22 avenue Camille Desmoulins, 29238, Brest Cedex 3, France
- Laboratoire de génétique moléculaire et d'histocompatibilité, CHRU de Brest, 5 avenue du Maréchal Foch, 29609, Brest Cedex 3, France
- DUMG, Université de Bretagne Occidentale, Faculté de Médecine, 22 avenue Camille Desmoulins, 29238, Brest Cedex 3, France
| | - Pierre Lehn
- INSERM UMR 1078, Faculté de Médecine, Université de Bretagne Occidentale, Université Européenne de Bretagne, 22 avenue Camille Desmoulins, 29238, Brest Cedex 3, France
| | - Fabien Montel
- Matière et Systèmes Complexes, CNRS-UMR 7057, Université Paris-Diderot, 10 rue Alice Domon et Léonie Duquet, 75205, Paris cedex 13, France
| | - Loïc Auvray
- Matière et Systèmes Complexes, CNRS-UMR 7057, Université Paris-Diderot, 10 rue Alice Domon et Léonie Duquet, 75205, Paris cedex 13, France
| | - Cécile Huin
- LAMBE, Univ Evry, CNRS, CEA, Université Paris-Saclay, 91025, Evry, France
- LAMBE, Université Cergy-Pontoise, Université Paris-Seine, 91025, Evry, France
| | - Philippe Guégan
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 place Jussieu, F-75005, Paris, France.
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18
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Chen J, Zhang X, Zhang Y, Wang W, Li S, Wang Y, Hu M, Liu L, Bi H. Understanding the Capsanthin Tails in Regulating the Hydrophilic-Lipophilic Balance of Carbon Dots for a Rapid Crossing Cell Membrane. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:10259-10270. [PMID: 28874049 DOI: 10.1021/acs.langmuir.7b01992] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Here we use natural Chinese paprika to prepare a new kind of amphiphilic carbon dot (A-Dot) that exhibits bright, multicolored fluorescence and contains hydrophilic groups as well as lipophilic capsanthin tails on the surface. It is found that the capsanthin tails in a phospholipid-like structure can promote cell internalization of the A-Dots via crossing cell membranes rapidly in an energy-independent fashion. Compared to highly hydrophilic carbon dots (H-Dots), a control sample prepared from the microwave thermolysis of citric acid and ethylenediamine, our synthesized A-Dots can be taken up by CHO, HeLa, and HFF cells more easily. More importantly, we develop a method to calibrate the hydrophilic-lipophilic balance (HLB) values of various kinds of carbon dots (C-Dots). HLB values of A-Dots and H-Dots are determined to be 6.4 and 18.4, respectively. Moreover, we discover that the cellular uptake efficiency of C-Dots is closely related to their HLBs, and the C-Dots with an HLB value of around 6.4 cross the cell membrane easier and faster. As we regulate the HLB value of the A-Dots from 6.4 to 15.3 by removing the capsanthin tails from their surfaces via alkali refluxing, it is found that the refluxed A-Dots can hardly cross HeLa cell membranes. Our work is an essential step toward understanding the importance of regulating the HLB values as well as the surface polarity of the C-Dots for their practical use in bioimaging and also provides a simple but effective way to judge whether the C-Dots in hand are appropriate for cell imaging.
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Affiliation(s)
- Jing Chen
- College of Chemistry and Chemical Engineering, Anhui University , Hefei 230601, China
- School of Life Sciences, Hefei Normal University , Hefei 230601, China
| | - Xiang Zhang
- College of Chemistry and Chemical Engineering, Anhui University , Hefei 230601, China
| | - Ye Zhang
- College of Chemistry and Chemical Engineering, Anhui University , Hefei 230601, China
| | - Wei Wang
- School of Life Sciences, Hefei Normal University , Hefei 230601, China
| | - Shuya Li
- The Chinese Academy of Sciences Key Laboratory of Innate Immunity and Chronic Diseases, School of Life Sciences, University of Science and Technology of China , Hefei 230027, China
| | - Yucai Wang
- The Chinese Academy of Sciences Key Laboratory of Innate Immunity and Chronic Diseases, School of Life Sciences, University of Science and Technology of China , Hefei 230027, China
| | - Mengyue Hu
- College of Chemistry and Chemical Engineering, Anhui University , Hefei 230601, China
| | - Li Liu
- College of Chemistry and Chemical Engineering, Anhui University , Hefei 230601, China
| | - Hong Bi
- College of Chemistry and Chemical Engineering, Anhui University , Hefei 230601, China
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19
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Effect of three pluronic polymers on the transport of an organic cation across a POPG bilayer studied by Second Harmonic spectroscopy. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Ding H, Fox I, Patil R, Galstyan A, Black KL, Ljubimova JY, Holler E. Polymalic Acid Tritryptophan Copolymer Interacts with Lipid Membrane Resulting in Membrane Solubilization. JOURNAL OF NANOMATERIALS 2017; 2017:4238697. [PMID: 29081792 PMCID: PMC5656384 DOI: 10.1155/2017/4238697] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Anionic polymers with membrane permeation functionalities are highly desirable for secure cytoplasmic drug delivery. We have developed tritryptophan containing copolymer (P/WWW) of polymalic acid (PMLA) that permeates membranes by a mechanism different from previously described PMLA copolymers of trileucine (P/LLL) and leucine ethyl ester (P/LOEt) that use the "barrel stave" and "carpet" mechanism, respectively. The novel mechanism leads to solubilization of membranes by forming copolymer "belts" around planar membrane "packages." The formation of such packages is supported by results obtained from studies including size-exclusion chromatography, confocal microscopy, and fluorescence energy transfer. According to this "belt" mechanism, it is hypothesized that P/WWW first attaches to the membrane surface. Subsequently the hydrophobic tryptophan side chains translocate into the periphery and insert into the lipid bilayer thereby cutting the membrane into packages. The reaction is driven by the high affinity between the tryptophan residues and lipid side chains resulting in a stable configuration. The formation of the membrane packages requires physical agitation suggesting that the success of the translocation depends on the fluidity of the membrane. It is emphasized that the "belt" mechanism could specifically function in the recognition of abnormal cells with high membrane fluidity and in response to hyperthermia.
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Affiliation(s)
- Hui Ding
- Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Irving Fox
- Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Rameshwar Patil
- Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Anna Galstyan
- Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Keith L. Black
- Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Julia Y. Ljubimova
- Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Eggehard Holler
- Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Institut für Biophysik und Physikalische Biochemie der Universität Regensburg, Regensburg, Germany
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21
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Qin J, Guo J, Xu Q, Zheng Z, Mao H, Yan F. Synthesis of Pyrrolidinium-Type Poly(ionic liquid) Membranes for Antibacterial Applications. ACS APPLIED MATERIALS & INTERFACES 2017; 9:10504-10511. [PMID: 28272866 DOI: 10.1021/acsami.7b00387] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Pyrrolidinium-type small molecule ionic liquids (ILs), poly(ionic liquid) (PIL) homopolymers, and their corresponding PIL membranes were synthesized and used for antibacterial applications. The influences of substitutions at the N position of pyrrolidinium cation on the antimicrobial activities against both Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) were studied by minimum inhibitory concentration (MIC). The antibacterial efficiency of both the small molecule ILs and PIL homopolymers increased with the increase of the alkyl chain length of substitutions. Furthermore, PIL homopolymers show relatively lower MIC values, indicating better antimicrobial activities than those of the corresponding small molecule ILs. However, the antibacterial properties of the PIL membranes are contrary to corresponding ILs and PIL homopolymers, which reduce with the increase of alkyl chain length. Furthermore, the resultant PIL membranes show excellent hemocompatibility and low cytotoxicity toward human cells, demonstrating clinical feasibility in topical applications.
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Affiliation(s)
- Jing Qin
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, China
| | - Jiangna Guo
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, China
| | - Qiming Xu
- Department of Anesthesiology and Critical Care Medicine, Zhongshan Hospital, Fudan University , Shanghai 200032, China
| | - Zhiqiang Zheng
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, China
| | - Hailei Mao
- Department of Anesthesiology and Critical Care Medicine, Zhongshan Hospital, Fudan University , Shanghai 200032, China
| | - Feng Yan
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, China
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22
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Schmitt C, Lippert AH, Bonakdar N, Sandoghdar V, Voll LM. Compartmentalization and Transport in Synthetic Vesicles. Front Bioeng Biotechnol 2016; 4:19. [PMID: 26973834 PMCID: PMC4770187 DOI: 10.3389/fbioe.2016.00019] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 02/11/2016] [Indexed: 12/03/2022] Open
Abstract
Nanoscale vesicles have become a popular tool in life sciences. Besides liposomes that are generated from phospholipids of natural origin, polymersomes fabricated of synthetic block copolymers enjoy increasing popularity, as they represent more versatile membrane building blocks that can be selected based on their specific physicochemical properties, such as permeability, stability, or chemical reactivity. In this review, we focus on the application of simple and nested artificial vesicles in synthetic biology. First, we provide an introduction into the utilization of multicompartmented vesosomes as compartmentalized nanoscale bioreactors. In the bottom-up development of protocells from vesicular nanoreactors, the specific exchange of pathway intermediates across compartment boundaries represents a bottleneck for future studies. To date, most compartmented bioreactors rely on unspecific exchange of substrates and products. This is either based on changes in permeability of the coblock polymer shell by physicochemical triggers or by the incorporation of unspecific porin proteins into the vesicle membrane. Since the incorporation of membrane transport proteins into simple and nested artificial vesicles offers the potential for specific exchange of substances between subcompartments, it opens new vistas in the design of protocells. Therefore, we devote the main part of the review to summarize the technical advances in the use of phospholipids and block copolymers for the reconstitution of membrane proteins.
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Affiliation(s)
- Christine Schmitt
- Division of Biochemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Anna H. Lippert
- Max-Planck-Institute for the Science of Light, Erlangen, Germany
| | - Navid Bonakdar
- Max-Planck-Institute for the Science of Light, Erlangen, Germany
| | - Vahid Sandoghdar
- Max-Planck-Institute for the Science of Light, Erlangen, Germany
| | - Lars M. Voll
- Division of Biochemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
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23
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Rabbel H, Werner M, Sommer JU. Interactions of Amphiphilic Triblock Copolymers with Lipid Membranes: Modes of Interaction and Effect on Permeability Examined by Generic Monte Carlo Simulations. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00720] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Hauke Rabbel
- Leibniz-Institut
für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Marco Werner
- Leibniz-Institut
für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Jens-Uwe Sommer
- Leibniz-Institut
für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
- Technische Universität Dresden, Institute of
Theoretical Physics, 01069 Dresden, Germany
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24
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Chen J, Luo J, Zhao Y, Pu L, Lu X, Gao R, Wang G, Gu Z. Increase in transgene expression by pluronic L64-mediated endosomal/lysosomal escape through its membrane-disturbing action. ACS APPLIED MATERIALS & INTERFACES 2015; 7:7282-7293. [PMID: 25786540 DOI: 10.1021/acsami.5b00486] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
For efficient transgene delivery and expression, internalized nucleic acids should quickly escape from cellular endosomes and lysosomes to avoid enzymatic destruction and degradation. Here, we report a novel strategy for safe and efficient endosomal/lysosomal escape of transgenes mediated by Pluronic L64, a neutral amphiphilic triblock copolymer. L64 enhanced the permeability of biomembranes by structural disturbance and pore formation in a concentration- and time-dependent manner. When applied at optimal concentration, it rapidly reached the endosome/lysosome compartments, where it facilitated escape of the transfection complex from the compartments and dissociation of the complex. Therefore, when applied properly, L64 not only significantly increased polyethylenimine- and liposome-mediated transgene expression, but also decreased the cytotoxicity occasioned by transfection process. Our studies revealed the function and mechanism of neutral amphiphilic triblock copolymer as potent mediator for safe and efficient gene delivery.
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Affiliation(s)
- Jianlin Chen
- †Key Laboratory for Bio-Resource and Eco-Environment of Ministry Education, Key Laboratory for Animal Disease Prevention and Food Safety of Sichuan Province, College of Life Science, Sichuan University, Chengdu, Sichuan 610064, China
- ‡National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, China
| | - Jing Luo
- †Key Laboratory for Bio-Resource and Eco-Environment of Ministry Education, Key Laboratory for Animal Disease Prevention and Food Safety of Sichuan Province, College of Life Science, Sichuan University, Chengdu, Sichuan 610064, China
- ‡National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, China
| | - Ying Zhao
- §College of Acupuncture and Massage, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610075, China
| | - Linyu Pu
- ‡National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, China
| | - Xuejing Lu
- §College of Acupuncture and Massage, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610075, China
| | - Rong Gao
- †Key Laboratory for Bio-Resource and Eco-Environment of Ministry Education, Key Laboratory for Animal Disease Prevention and Food Safety of Sichuan Province, College of Life Science, Sichuan University, Chengdu, Sichuan 610064, China
| | - Gang Wang
- ‡National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, China
| | - Zhongwei Gu
- ‡National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, China
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25
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Rasolonjatovo B, Gomez JP, Même W, Gonçalves C, Huin C, Bennevault-Celton V, Le Gall T, Montier T, Lehn P, Cheradame H, Midoux P, Guégan P. Poly(2-methyl-2-oxazoline)-b-poly(tetrahydrofuran)-b-poly(2-methyl-2-oxazoline) Amphiphilic Triblock Copolymers: Synthesis, Physicochemical Characterizations, and Hydrosolubilizing Properties. Biomacromolecules 2015; 16:748-56. [DOI: 10.1021/bm5016656] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bazoly Rasolonjatovo
- Laboratoire
Analyse et Modélisation pour la Biologie et l’Environnement, UMR 8587 UEVE-CNRS-CEA, Evry, France
| | - Jean-Pierre Gomez
- Centre
de Biophysique Moléculaire, CNRS UPR4301 and Université d’Orléans, France
| | - William Même
- Centre
de Biophysique Moléculaire, CNRS UPR4301 and Université d’Orléans, France
| | - Cristine Gonçalves
- Centre
de Biophysique Moléculaire, CNRS UPR4301 and Université d’Orléans, France
| | - Cécile Huin
- Laboratoire
Analyse et Modélisation pour la Biologie et l’Environnement, UMR 8587 UEVE-CNRS-CEA, Evry, France
| | - Véronique Bennevault-Celton
- Laboratoire
Analyse et Modélisation pour la Biologie et l’Environnement, UMR 8587 UEVE-CNRS-CEA, Evry, France
| | - Tony Le Gall
- INSERM
U613, Hôpital Morvan - CHU Brest - I3S, Brest, France
| | - Tristan Montier
- INSERM
U613, Hôpital Morvan - CHU Brest - I3S, Brest, France
| | - Pierre Lehn
- INSERM
U613, Hôpital Morvan - CHU Brest - I3S, Brest, France
| | - Hervé Cheradame
- Laboratoire
Analyse et Modélisation pour la Biologie et l’Environnement, UMR 8587 UEVE-CNRS-CEA, Evry, France
| | - Patrick Midoux
- Centre
de Biophysique Moléculaire, CNRS UPR4301 and Université d’Orléans, France
| | - Philippe Guégan
- Sorbonne Universités, UPMC Univ Paris 06, UMR 8232, IPCM, Chimie des Polyméres, F-75005, Paris, France
- CNRS, UMR 8232, IPCM, Chimie des Polyméres, F-75005, Paris, France
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26
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El Ghoul Y, Renia R, Faye I, Rassou S, Badi N, Bennevault-Celton V, Huin C, Guégan P. Biomimetic artificial ion channels based on beta-cyclodextrin. Chem Commun (Camb) 2014; 49:11647-9. [PMID: 24185371 DOI: 10.1039/c3cc47071g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Star polymers based on β-cyclodextrin were synthesized by a ''click-chemistry'' process and characterized by NMR, SEC and BLM. The resulting triazole functional groups create, at a specific pH range, electrostatic hindrance between pores inserted in lipid bilayers, preventing their aggregation, allowing formation of well-defined isolated unitary pores and mimicking biological natural channels.
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Affiliation(s)
- Yassine El Ghoul
- LAMBE, UMR8587, UEVE-CNRS-CEA, Bld François Mitterrand, 91025 Evry, France.
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27
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Amphiphilic macromolecules on cell membranes: from protective layers to controlled permeabilization. J Membr Biol 2014; 247:861-81. [PMID: 24903487 DOI: 10.1007/s00232-014-9679-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2014] [Accepted: 05/09/2014] [Indexed: 12/13/2022]
Abstract
Antimicrobial and cell-penetrating peptides have inspired developments of abiotic membrane-active polymers that can coat, penetrate, or break lipid bilayers in model systems. Application to cell cultures is more recent, but remarkable bioactivities are already reported. Synthetic polymer chains were tailored to achieve (i) high biocide efficiencies, and selectivity for bacteria (Gram-positive/Gram-negative or bacterial/mammalian membranes), (ii) stable and mild encapsulation of viable isolated cells to escape immune systems, (iii) pH-, temperature-, or light-triggered interaction with cells. This review illustrates these recent achievements highlighting the use of abiotic polymers, and compares the major structural determinants that control efficiency of polymers and peptides. Charge density, sp. of cationic and guanidinium side groups, and hydrophobicity (including polarity of stimuli-responsive moieties) guide the design of new copolymers for the handling of cell membranes. While polycationic chains are generally used as biocidal or hemolytic agents, anionic amphiphilic polymers, including Amphipols, are particularly prone to mild permeabilization and/or intracell delivery.
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28
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Du P, Liu P. Novel smart yolk/shell polymer microspheres as a multiply responsive cargo delivery system. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:3060-8. [PMID: 24571375 DOI: 10.1021/la500731v] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
An effective strategy was developed to fabricate the novel dually thermo- and pH-responsive yolk/shell polymer microspheres as a drug delivery system (DDS) for the controlled release of anticancer drugs via two-stage distillation precipitation polymerization and seed precipitation polymerization. Their pH-induced thermally responsive polymer shells act as a smart "valve" to adjust the diffusion of the loaded drugs in/out of the polymer containers according to the body environments, while the movable P(MAA-co-EGDMA) cores enhance the drug loading capacity for the anticancer drug doxorubicin hydrochloride (DOX). The yolk/shell polymer microspheres show a low leakage at high pH values but significantly enhanced release at lower pH values equivalent to the tumor body fluid environments at human body temperature, exhibiting the apparent tumor-environment-responsive controlled "on-off" drug release characteristics. Meanwhile, the yolk/shell microspheres expressed very low in vitro cytotoxicity on HepG2 cells. Consequently, their precise tumor-environment-responsive drug delivery performance and high drug loading capacity offer promise for tumor therapy.
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Affiliation(s)
- Pengcheng Du
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000, China
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29
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Olubummo A, Schulz M, Schöps R, Kressler J, Binder WH. Phase changes in mixed lipid/polymer membranes by multivalent nanoparticle recognition. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:259-267. [PMID: 24359326 DOI: 10.1021/la403763v] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Selective addressing of membrane components in complex membrane mixtures is important for many biological processes. The present paper investigates the recognition between multivalent surface functionalized nanoparticles (NPs) and amphiphilic block copolymers (BCPs), which are successfully incorporated into lipid membranes. The concept involves the supramolecular recognition between hybrid membranes (composed of a mixture of a lipid (DPPC or DOPC), an amphiphilic triazine-functionalized block copolymer TRI-PEO13-b-PIB83 (BCP 2), and nonfunctionalized BCPs (PEO17-b-PIB87 BCP 1)) with multivalent (water-soluble) nanoparticles able to recognize the triazine end group of the BCP 2 at the membrane surface via supramolecular hydrogen bonds. CdSe-NPs bearing long PEO47-thymine (THY) polymer chains on their surface specifically interacted with the 2,4-diaminotriazine (TRI) moiety of BCP 2 embedded within hybrid lipid/BCP mono- or bilayers. Experiments with GUVs from a mixture of DPPC/BCP 2 confirm selective supramolecular recognition between the THY-functionalized NPs and the TRI-functionalized polymers, finally resulting in the selective removal of BCP 2 from the hybrid vesicle membrane as proven via facetation of the originally round and smooth vesicles. GUVs (composed of DOPC/BCP 2) show that a selective removal of the polymer component from the fluid hybrid membrane results in destruction of hybrid vesicles via membrane rupture. Adsorption experiments with mixed monolayers from lipids with either BCP 2 or BCP 1 (nonfunctionalized) reveal that the THY-functionalized NPs specifically recognize BCP 2 at the air/water interface by inducing significantly higher changes in the surface pressure when compared to monolayers from nonspecifically interacting lipid/BCP 1 mixtures. Thus, recognition of multivalent NPs with specific membrane components of hybrid lipid/BCP mono- and bilayers proves the selective removal of BCPs from mixed membranes, in turn inducing membrane rupture. Such recognition events display high potential in controlling permeability and fluidity of membranes (e.g., in pharmaceutics).
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Affiliation(s)
- Adekunle Olubummo
- Chair of Macromolecular Chemistry, Faculty of Natural Sciences II (Chemistry, Physics and Mathematics), Institute of Chemistry, Martin-Luther University Halle-Wittenberg , D-06120 Halle (Saale), Germany
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30
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Lee SM, Nguyen ST. Smart Nanoscale Drug Delivery Platforms from Stimuli-Responsive Polymers and Liposomes. Macromolecules 2013; 46:9169-9180. [PMID: 28804160 PMCID: PMC5552073 DOI: 10.1021/ma401529w] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Since the 1960's, stimuli-responsive polymers have been utilized as functional soft materials for biological applications such as the triggered-release delivery of biologically active cargos. Over the same period, liposomes have been explored as an alternative drug delivery system with potentials to decrease the toxic side effects often associated with conventional small-molecule drugs. However, the lack of drug-release triggers and the instability of bare liposomes often limit their practical applications, causing short circulation time and low therapeutic efficacy. This perspective article highlights recent work in integrating these two materials together to achieve a targetable, triggerable nanoscale platform that fulfills all the characteristics of a near-ideal drug delivery system. Through a drop-in, post-synthesis modification strategy, a network of stimuli-responsive polymers can be integrated onto the surface of liposomes to form polymer-caged nanobins, a multifunctional nanoscale delivery platform that allows for multi-drug loading, targeted delivery, triggered drug-release, and theranostic capabilities.
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Affiliation(s)
- Sang-Min Lee
- Department of Chemistry and Center of Cancer Nanotechnology Excellence, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113
- Department of Chemistry, The Catholic University of Korea, Bucheon, Gyeonggi-do 420-743 Korea
| | - SonBinh T. Nguyen
- Department of Chemistry and Center of Cancer Nanotechnology Excellence, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113
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31
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Khan M, Feng Y, Yang D, Zhou W, Tian H, Han Y, Zhang L, Yuan W, Zhang J, Guo J, Zhang W. Biomimetic design of amphiphilic polycations and surface grafting onto polycarbonate urethane film as effective antibacterial agents with controlled hemocompatibility. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26703] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Musammir Khan
- School of Chemical Engineering and Technology; Tianjin University; Weijin Road 92, 300072, Tianjin, China
| | - Yakai Feng
- School of Chemical Engineering and Technology; Tianjin University; Weijin Road 92, 300072, Tianjin, China
- Key Laboratory of Systems Bioengineering, Ministry of Education; Tianjin University; Tianjin 300072 China
- Tianjin University- Helmholtz-Zentrum Geesthacht; Joint Laboratory for Biomaterials and Regenerative Medicine; Weijin Road 92 300072 Tianjin China Kantstr. 55 14513 Teltow Germany
| | - Dazhi Yang
- School of Chemical Engineering and Technology; Tianjin University; Weijin Road 92, 300072, Tianjin, China
| | - Wei Zhou
- School of Chemical Engineering and Technology; Tianjin University; Weijin Road 92, 300072, Tianjin, China
| | - Hong Tian
- School of Chemical Engineering and Technology; Tianjin University; Weijin Road 92, 300072, Tianjin, China
| | - Ying Han
- School of Chemical Engineering and Technology; Tianjin University; Weijin Road 92, 300072, Tianjin, China
| | - Li Zhang
- School of Chemical Engineering and Technology; Tianjin University; Weijin Road 92, 300072, Tianjin, China
| | - Wenjie Yuan
- School of Chemical Engineering and Technology; Tianjin University; Weijin Road 92, 300072, Tianjin, China
| | - Jin Zhang
- School of Chemical Engineering and Technology; Tianjin University; Weijin Road 92, 300072, Tianjin, China
| | - Jintang Guo
- School of Chemical Engineering and Technology; Tianjin University; Weijin Road 92, 300072, Tianjin, China
- Tianjin University- Helmholtz-Zentrum Geesthacht; Joint Laboratory for Biomaterials and Regenerative Medicine; Weijin Road 92 300072 Tianjin China Kantstr. 55 14513 Teltow Germany
| | - Wencheng Zhang
- Department of Physiology and Pathophysiology; Longistics University of Chinese People's Armed Police Force; Tianjin 300072 China
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32
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Rodríguez-Pulido A, Kondrachuk AI, Prusty DK, Gao J, Loi MA, Herrmann A. Light-triggered sequence-specific cargo release from DNA block copolymer-lipid vesicles. Angew Chem Int Ed Engl 2013; 52:1008-12. [PMID: 23109173 PMCID: PMC3563227 DOI: 10.1002/anie.201206783] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Indexed: 12/13/2022]
Affiliation(s)
- Alberto Rodríguez-Pulido
- Department of Polymer Chemistry, Zernike Institute for Advanced Materials, University of GroningenNijenborgh 4, 9747 AG Groningen (The Netherlands)
| | - Alina I Kondrachuk
- Department of Polymer Chemistry, Zernike Institute for Advanced Materials, University of GroningenNijenborgh 4, 9747 AG Groningen (The Netherlands)
| | - Deepak K Prusty
- Department of Polymer Chemistry, Zernike Institute for Advanced Materials, University of GroningenNijenborgh 4, 9747 AG Groningen (The Netherlands)
| | - Jia Gao
- Department of Photophysics and Optoelectronics, University of Groningen(The Netherlands)
| | - Maria A Loi
- Department of Photophysics and Optoelectronics, University of Groningen(The Netherlands)
| | - Andreas Herrmann
- Department of Polymer Chemistry, Zernike Institute for Advanced Materials, University of GroningenNijenborgh 4, 9747 AG Groningen (The Netherlands)
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33
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Ding H, Portilla-Arias J, Patil R, Black KL, Ljubimova JY, Holler E. Distinct mechanisms of membrane permeation induced by two polymalic acid copolymers. Biomaterials 2013; 34:217-25. [PMID: 23063368 PMCID: PMC3487713 DOI: 10.1016/j.biomaterials.2012.08.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Accepted: 08/09/2012] [Indexed: 11/20/2022]
Abstract
Anionic polymers are valuable components used in cosmetics and health sciences, especially in drug delivery, because of their chemical versatility and low toxicity. However, because of their highly negative charge they pose problems for penetration through hydrophobic barriers such as membranes. We have engineered anionic polymalic acid (PMLA) to penetrate biological membranes. PMLA copolymers of leucine ethyl ester (P/LOEt) or trileucine (P/LLL) show either pH-independent or pH-dependent activity for membrane penetration. We report here for the first time on the mechanisms which are different for those two copolymers. Formation of hydrophobic patches in either copolymer is detected by fluorescence techniques. The copolymers display distinctly different properties in solution and during membranolysis. P/LOEt copolymer binds to membrane as single molecules with high affinity, and induces leakage cooperatively through a mechanism known as "carpet" model, in which the polymer aligns at the surface throughout the entire process of membrane permeation. In contrast, P/LLL self-assembles to form an oligomer of 105 nm in a pH-dependent manner (pKa 5.5) and induces membrane leakage through a two-phase process: the concentration dependent first-phase of insertion of the oligomer into membrane followed by a concentration independent second-phase of rearrangement of the membrane-oligomer complex. The insertion of P/LLL is facilitated by hydrophobic interactions between trileucine side chains and lipids in the membrane core, resulting in transmembrane pores, through mechanism known as "barrel-stave" model. The understanding of the mechanism paves the way for future engineering of polymeric delivery systems with optimal cytoplasmic delivery efficiency and reduced systemic toxicity.
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Affiliation(s)
- Hui Ding
- Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA.
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34
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Du P, Yang H, Zeng J, Liu P. Folic acid-conjugated temperature and pH dual-responsive yolk/shell microspheres as a drug delivery system. J Mater Chem B 2013; 1:5298-5308. [DOI: 10.1039/c3tb20975j] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Schöps R, Amado E, Müller SS, Frey H, Kressler J. Block copolymers in giant unilamellar vesicles with proteins or with phospholipids. Faraday Discuss 2013; 166:303-15. [DOI: 10.1039/c3fd00062a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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36
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Schulz M, Werner S, Bacia K, Binder WH. Kontrolle molekularer Rezeptor-Protein-Erkennung durch laterale Phasenseparation in Lipid-Polymer-Hybridvesikeln. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201204959] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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37
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Schulz M, Werner S, Bacia K, Binder WH. Controlling Molecular Recognition with Lipid/Polymer Domains in Vesicle Membranes. Angew Chem Int Ed Engl 2012; 52:1829-33. [DOI: 10.1002/anie.201204959] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Revised: 08/13/2012] [Indexed: 01/26/2023]
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38
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Hezaveh S, Samanta S, De Nicola A, Milano G, Roccatano D. Understanding the interaction of block copolymers with DMPC lipid bilayer using coarse-grained molecular dynamics simulations. J Phys Chem B 2012; 116:14333-45. [PMID: 23137298 DOI: 10.1021/jp306565e] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
In this paper, we present a computational model of the adsorption and percolation mechanism of poloxamers (poly(ethylene oxide) (PEO) and poly(propylene oxide) (PPO) triblock copolymers) across a 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) lipid bilayer. A coarse-grained model was used to cope with the long time scale of the percolation process. The simulations have provided details of the interaction mechanism of Pluronics with lipid bilayer. In particular, the results have shown that polymer chains containing a PPO block with a length comparable to the DMPC bilayer thickness, such as P85, tends to percolate across the lipid bilayer. On the contrary, Pluronics with a shorter PPO chain, such as L64 and F38, insert partially into the membrane with the PPO block part while the PEO blocks remain in water on one side of the lipid bilayer. The percolation of the polymers into the lipid tail groups reduces the membrane thickness and increases the area per lipid. These effects are more evident for P85 than L64 or F38. Our findings are qualitatively in good agreement with published small-angle X-ray scattering experiments that have evidenced a thinning effect of Pluronics on the lipid bilayer as well as the role of the length of the PPO block on the permeation process of the polymer through the lipid bilayer. Our theoretical results complement the experimental data with a detailed structural and dynamic model of poloxamers at the interface and inside the lipid bilayer.
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Affiliation(s)
- Samira Hezaveh
- Jacobs University Bremen, Campus Ring 1, D-28759 Bremen, Germany
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39
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Lai TC, Kataoka K, Kwon GS. Bioreducible polyether-based pDNA ternary polyplexes: balancing particle stability and transfection efficiency. Colloids Surf B Biointerfaces 2012; 99:27-37. [PMID: 22000077 PMCID: PMC5006184 DOI: 10.1016/j.colsurfb.2011.09.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Revised: 09/13/2011] [Accepted: 09/14/2011] [Indexed: 02/05/2023]
Abstract
Polyplex particles formed with plasmid DNA (pDNA) and Pluronic P85-block-poly{N-[N-(2-aminoethyl)-2-aminoethyl]aspartamide} (P85-b-P[Asp(DET)]) demonstrated highly effective transfection ability compared to PEG-based block cationomer, PEG-b-P[Asp(DET)]. Ternary polyplexes comprising PEG-b-P[Asp(DET)], poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide)-b-P[Asp(DET)] (P(EPE)-b-P[Asp(DET)]) used as an analog of P85-b-P[Asp(DET)], and pDNA were prepared in this work aiming at maintaining adequate transfection efficiency while solving the stability issues of the P85-b-P[Asp(DET)] polyplexes. Furthermore, a bioreducible P(EPE)-SS-P[Asp(DET)] possessing a redox potential-sensitive disulfide linkage between the P(EPE) polymer and the cationic block was used as a substitute for P(EPE)-b-P[Asp(DET)] during ternary complex formation to investigate whether the transfection ability of the ternary polyplex system could be enhanced by triggered release of P(EPE) polymers from the polyplexes. The ternary complexes showed significant improvement in terms of stability against salt-induced aggregation compared to binary complexes, although the gene delivery ability dropped with the amount of PEG-b-P[Asp(DET)] used for complexation. By manipulating the difference in redox potential between the extracellular and intracellular environments, the reducible ternary complexes achieved higher transfection compared to the non-reducible polyplexes; moreover, the reducible polyplexes exhibited comparable stability to the non-reducible ones. These results suggest that reducible ternary complexes could provide satisfactory transfection efficiency without comprising the colloidal stability of the particles.
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Affiliation(s)
- Tsz Chung Lai
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin – Madison, 777 Highland Avenue, Madison, WI 53705-2222, USA
| | - Kazunori Kataoka
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Glen S. Kwon
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin – Madison, 777 Highland Avenue, Madison, WI 53705-2222, USA
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Rodríguez-Pulido A, Kondrachuk AI, Prusty DK, Gao J, Loi MA, Herrmann A. Light-Triggered Sequence-Specific Cargo Release from DNA Block Copolymer-Lipid Vesicles. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206783] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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41
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Olubummo A, Schulz M, Lechner BD, Scholtysek P, Bacia K, Blume A, Kressler J, Binder WH. Controlling the localization of polymer-functionalized nanoparticles in mixed lipid/polymer membranes. ACS NANO 2012; 6:8713-27. [PMID: 22950802 DOI: 10.1021/nn3023602] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Surface hydrophobicity plays a significant role in controlling the interactions between nanoparticles and lipid membranes. In principle, a nanoparticle can be encapsulated into a liposome, either being incorporated into the hydrophobic bilayer interior or trapped within the aqueous vesicle core. In this paper, we demonstrate the preparation and characterization of polymer-functionalized CdSe NPs, tuning their interaction with mixed lipid/polymer membranes from 1,2-dipalmitoyl-sn-glycero-3-phophocholine and PIB(87)-b-PEO(17) block copolymer by varying their surface hydrophobicity. It is observed that hydrophobic PIB-modified CdSe NPs can be selectively located within polymer domains in a mixed lipid/polymer monolayer at the air/water interface, changing their typical domain morphologies, while amphiphilic PIB-PEO-modified CdSe NPs showed no specific localization in phase-separated lipid/polymer films. In addition, hydrophilic water-soluble CdSe NPs can readily adsorb onto spread monolayers, showing a larger effect on the molecule packing at the air/water interface in the case of pure lipid films compared to mixed monolayers. Furthermore, the incorporation of PIB-modified CdSe NPs into hybrid lipid/polymer GUVs is demonstrated with respect to the prevailing phase state of the hybrid membrane. Monitoring fluorescent-labeled PIB-CdSe NPs embedded into phase-separated vesicles, it is demonstrated that they are enriched in one specific phase, thus probing their selective incorporation into the hydrophobic portion of PIB(87)-b-PEO(17) BCP-rich domains. Thus, the formation of biocompatible hybrid GUVs with selectively incorporated nanoparticles opens a new perspective for subtle engineering of membranes together with their (nano-) phase structure serving as a model system in designing functional nanomaterials for effective nanomedicine or drug delivery.
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Affiliation(s)
- Adekunle Olubummo
- Macromolecular Chemistry, Institute of Chemistry, Faculty of Natural Sciences II (Chemistry, Physics and Mathematics), Martin-Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
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42
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Sebai SC, Milioni D, Walrant A, Alves ID, Sagan S, Huin C, Auvray L, Massotte D, Cribier S, Tribet C. Photocontrol of the Translocation of Molecules, Peptides, and Quantum Dots through Cell and Lipid Membranes Doped with Azobenzene Copolymers. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201106777] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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43
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Sebai SC, Milioni D, Walrant A, Alves ID, Sagan S, Huin C, Auvray L, Massotte D, Cribier S, Tribet C. Photocontrol of the translocation of molecules, peptides, and quantum dots through cell and lipid membranes doped with azobenzene copolymers. Angew Chem Int Ed Engl 2012; 51:2132-6. [PMID: 22262500 DOI: 10.1002/anie.201106777] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 11/09/2011] [Indexed: 11/12/2022]
Affiliation(s)
- Sarra C Sebai
- Ecole Normale Supérieure, Departement de Chimie, UMR 8640 CNRS-ENS-UPMC, Paris, France
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44
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Chui JKW, Fyles TM. Ionic conductance of synthetic channels: analysis, lessons, and recommendations. Chem Soc Rev 2012; 41:148-75. [DOI: 10.1039/c1cs15099e] [Citation(s) in RCA: 141] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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45
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Amado E, Kressler J. Interactions of amphiphilic block copolymers with lipid model membranes. Curr Opin Colloid Interface Sci 2011. [DOI: 10.1016/j.cocis.2011.07.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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46
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Huang YF, Chiang WH, Tsai PL, Chern CS, Chiu HC. Novel hybrid vesicles co-assembled from a cationic lipid and PAAc-g-mPEG with pH-triggered transmembrane channels for controlled drug release. Chem Commun (Camb) 2011; 47:10978-80. [PMID: 21909548 DOI: 10.1039/c1cc14793e] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work presents an important example of novel hybrid vesicles with pH-triggered transmembrane channels prepared by co-assembly of poly(acrylic acid)-g-poly(monomethoxy ethylene glycol) (PAAc-g-mPEG) with a cationic lipid, didodecyldimethylammonium bromide (DDAB), via electrostatic interaction for effective doxorubicin (DOX) release.
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Affiliation(s)
- Yi-Fong Huang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
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47
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Xiao X, Montaño GA, Allen A, Achyuthan KE, Wheeler DR, Brozik SM. Lipid bilayer templated gold nanoparticles nanoring formation using zirconium ion coordination chemistry. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:9484-9489. [PMID: 21699157 DOI: 10.1021/la2014754] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We used positively charged lipids to prepare lipid bilayer assemblies (LBAs) upon which we assembled negatively charged gold nanoparticles (AuNPs). Treatment of the assembly with zirconium chloride resulted in the formation of nanorings of the diameters inversely related to the zirconium ion concentration. The nanorings were attributed to the zirconium ion coordinated AuNPs formed during the lipid bilayer budding process promoted by the acid effect of zirconium chloride. Nanoring organization was also dependent on the fluidity of lipid bilayers, an indication of LBA-assisted nanomaterials organization. We suggest that such bioorganic-inorganic hybrid assemblies coupled to unique topological and morphological variations might be useful as stimuli-responsive sensors or storage compartments for proteins or drugs.
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Affiliation(s)
- Xiaoyin Xiao
- Biosensors and Nanomaterials Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, USA
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48
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Jeon G, Yang SY, Byun J, Kim JK. Electrically actuatable smart nanoporous membrane for pulsatile drug release. NANO LETTERS 2011; 11:1284-8. [PMID: 21280644 DOI: 10.1021/nl104329y] [Citation(s) in RCA: 120] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
We report on the fabrication of electrically responsive nanoporous membrane based on polypyrrole doped with dodecylbenzenesulfonate anion (PPy/DBS) that was electropolymerized on the upper part of anodized aluminum oxide membrane. The membrane has regular pore size and very high pore density. Utilizing a large volume change of PPy/DBS depending on electrochemical state, the pore size was acutated electrically. The actuation of the pores was experimentally confirmed by in situ atomic force microscopy and in situ flux measurement. We also demonstrated successfully pulsatile (or on-demand) drug release by using fluorescently labeled protein as a model drug. Because of a fast switching time (less than 10 s) and high flux of the drugs, this membrane could be used for emergency therapy of angina pectoris and migraine, which requires acute and on-demand drug delivery, and hormone-related disease and metabolic syndrome.
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Affiliation(s)
- Gumhye Jeon
- National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering, Pohang University of Science and Technology , Kyungbuk 790-784, Korea
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49
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Matile S, Vargas Jentzsch A, Montenegro J, Fin A. Recent synthetic transport systems. Chem Soc Rev 2011; 40:2453-74. [PMID: 21390363 DOI: 10.1039/c0cs00209g] [Citation(s) in RCA: 297] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
This critical review covers progress with synthetic transport systems, particularly ion channels and pores, between January 2006 and December 2009 in a comprehensive manner. This is the third part of a series launched in the year 2000, covering a rich collection of structural and functional motifs that should appeal to a broad audience of non-specialists, including to organic, biological, supramolecular and polymer chemists. Impressive breakthroughs have been achieved over the past four years in part because of a fruitful expansion toward new types of interactions, including metal-organic, π-π, aromatic electron donor-acceptor, anion-π or anion-macrodipole interactions as well as dynamic covalent bonds (169 references).
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Affiliation(s)
- Stefan Matile
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland.
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50
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Palermo EF, Lee DK, Ramamoorthy A, Kuroda K. Role of cationic group structure in membrane binding and disruption by amphiphilic copolymers. J Phys Chem B 2010; 115:366-75. [PMID: 21171655 DOI: 10.1021/jp1083357] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Cationic, amphiphilic polymers are currently being used as antimicrobial agents that disrupt biomembranes, although their mechanisms remain poorly understood. Herein, membrane association and disruption by amphiphilic polymers bearing primary, tertiary, or quaternary ammonium salt groups reveal the role of cationic group structure in the polymer-membrane interaction. The dissociation constants of polymers to liposomes of POPC were obtained by a fluorometric assay, exploiting the environmental sensitivity of dansyl moieties in the polymer end groups. Dye leakage from liposomes and solid-state NMR provided further insights into the polymer-induced membrane disruption. Interestingly, the polymers with primary amine groups induced reorganization of the bilayer structure to align lipid headgroups perpendicular to the membrane. The results showed that polymers bearing primary amines exceed the tertiary and quaternary ammonium counterparts in membrane binding and disrupting abilities. This is likely due to enhanced complexation of primary amines to the phosphate groups in the lipids, through a combination of hydrogen bonding and electrostatic interactions.
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Affiliation(s)
- Edmund F Palermo
- Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, Michigan 48109, USA
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