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Wang C, Zhao H. Polymer Brushes and Surface Nanostructures: Molecular Design, Precise Synthesis, and Self-Assembly. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:2439-2464. [PMID: 38279930 DOI: 10.1021/acs.langmuir.3c02813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2024]
Abstract
For over two decades, polymer brushes have found wide applications in industry and scientific research. Now, polymer brush research has been a significant research focus in the community of polymer science. In this review paper, we give an introduction to the synthesis, self-assembly, and applications of one-dimensional (1D) polymer brushes on polymer backbones, two-dimensional (2D) polymer brushes on flat surfaces, and three-dimensional (3D) polymer brushes on spherical particles. Examples of the synthesis of polymer brushes on different substrates are provided. Studies on the formation of the surface nanostructures on solid surfaces are also reviewed in this article. Multicomponent polymer brushes on solid surfaces are able to self-assemble into surface micelles (s-micelles). If the s-micelles are linked to the substrates through cleavable linkages, the s-micelles can be cleaved from the substrates, and the cleaved s-micelles are able to self-assemble into hierarchical structures. The formation of the surface nanostructures by coassembly of polymer brushes and "free" polymer chains (coassembly approach) or polymerization-induced surface self-assembly approach, is discussed. The applications of the polymer brushes in colloid and biomedical science are summarized. Finally, perspectives on the development of polymer brushes are offered in this article.
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Affiliation(s)
- Chen Wang
- College of Chemistry and Key Laboratory of Functional Polymer Materials of the Ministry of Education, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| | - Hanying Zhao
- College of Chemistry and Key Laboratory of Functional Polymer Materials of the Ministry of Education, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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2
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Zuben de Valega Negrão CV, Cerize NN, Silva Justo-Junior AD, Liszbinski RB, Meneguetti GP, Araujo L, Rocco SA, Almeida Gonçalves KD, Cornejo DR, Leo P, Perecin C, Adamoski D, Gomes Dias SM. HER2 aptamer-conjugated iron oxide nanoparticles with PDMAEMA-b-PMPC coating for breast cancer cell identification. Nanomedicine (Lond) 2024; 19:231-254. [PMID: 38284384 DOI: 10.2217/nnm-2023-0225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024] Open
Abstract
Aim: To synthesize HER2 aptamer-conjugated iron oxide nanoparticles with a coating of poly(2-(dimethylamino) ethyl methacrylate)-poly(2-methacryloyloxyethylphosphorylcholine) block copolymer (IONPPPs). Methods: Characterization covered molecular structure, chemical composition, thermal stability, magnetic characteristics, aptamer interaction, crystalline nature and microscopic features. Subsequent investigations focused on IONPPPs for in vitro cancer cell identification. Results: Results demonstrated high biocompatibility of the diblock copolymer with no significant toxicity up to 150 μg/ml. The facile coating process yielded the IONPP complex, featuring a 13.27 nm metal core and a 3.10 nm polymer coating. Functionalized with a HER2-targeting DNA aptamer, IONPPP enhanced recognition in HER2-amplified SKBR3 cells via magnetization separation. Conclusion: These findings underscore IONPPP's potential in cancer research and clinical applications, showcasing diagnostic efficacy and HER2 protein targeting in a proof-of-concept approach.
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Affiliation(s)
- Cyro von Zuben de Valega Negrão
- Graduate Program in Genetics & Molecular Biology, Institute of Biology, University of Campinas (UNICAMP), 13083-864, Campinas, São Paulo, Brazil
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy & Materials (CNPEM), 13083-970, Campinas, São Paulo, Brazil
- Bionanomanufacturing Center, Institute for Technological Research (IPT), 05508-901, São Paulo, São Paulo, Brazil
| | - Natália Np Cerize
- Bionanomanufacturing Center, Institute for Technological Research (IPT), 05508-901, São Paulo, São Paulo, Brazil
| | - Amauri da Silva Justo-Junior
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy & Materials (CNPEM), 13083-970, Campinas, São Paulo, Brazil
| | - Raquel Bester Liszbinski
- Graduate Program in Genetics & Molecular Biology, Institute of Biology, University of Campinas (UNICAMP), 13083-864, Campinas, São Paulo, Brazil
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy & Materials (CNPEM), 13083-970, Campinas, São Paulo, Brazil
| | - Giovanna Pastore Meneguetti
- Bionanomanufacturing Center, Institute for Technological Research (IPT), 05508-901, São Paulo, São Paulo, Brazil
| | - Larissa Araujo
- Bionanomanufacturing Center, Institute for Technological Research (IPT), 05508-901, São Paulo, São Paulo, Brazil
| | - Silvana A Rocco
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy & Materials (CNPEM), 13083-970, Campinas, São Paulo, Brazil
| | - Kaliandra de Almeida Gonçalves
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy & Materials (CNPEM), 13083-970, Campinas, São Paulo, Brazil
| | - Daniel R Cornejo
- Department of Materials & Mechanics, Institute of Physics, University of São Paulo, 05508-090, São Paulo, São Paulo, Brazil
| | - Patrícia Leo
- Bionanomanufacturing Center, Institute for Technological Research (IPT), 05508-901, São Paulo, São Paulo, Brazil
| | - Caio Perecin
- Bionanomanufacturing Center, Institute for Technological Research (IPT), 05508-901, São Paulo, São Paulo, Brazil
| | - Douglas Adamoski
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy & Materials (CNPEM), 13083-970, Campinas, São Paulo, Brazil
| | - Sandra M Gomes Dias
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy & Materials (CNPEM), 13083-970, Campinas, São Paulo, Brazil
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Pereira PA, Serra MES, Serra AC, Coelho JFJ. Application of vinyl polymer-based materials as nucleic acids carriers in cancer therapy. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2022; 14:e1820. [PMID: 35637638 DOI: 10.1002/wnan.1820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 04/13/2022] [Accepted: 05/08/2022] [Indexed: 06/15/2023]
Abstract
Nucleic acid-based therapies have changed the paradigm of cancer treatment, where conventional treatment modalities still have several limitations in terms of efficacy and severe side effects. However, these biomolecules have a short half-life in vivo, requiring multiple administrations, resulting in severe suffering, discomfort, and poor patient compliance. In the early days of (nano)biotechnology, these problems caused concern in the medical community, but recently it has been recognized that these challenges can be overcome by developing innovative formulations. This review focuses on the use of vinyl polymer-based materials for the protection and delivery of nucleic acids in cancer. First, an overview of the properties of nucleic acids and their versatility as drugs is provided. Then, key information on the achievements to date, the most effective delivery methods, and the evaluation of functionalization approaches (stimulatory strategies) are critically discussed to highlight the importance of vinyl polymers in the new cancer treatment approaches. This article is categorized under: Nanotechnology Approaches to Biology > Nanoscale Systems in Biology Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease Biology-Inspired Nanomaterials > Nucleic Acid-Based Structures.
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Affiliation(s)
- Patrícia Alexandra Pereira
- Department of Chemical Engineering, CEMMPRE, University of Coimbra, Rua Sílvio Lima-Pólo II, Coimbra, Portugal
- IPN, Instituto Pedro Nunes, Associação para a Inovação e Desenvolvimento em Ciência e Tecnologia, Rua Pedro Nunes, Coimbra, Portugal
| | | | - Arménio C Serra
- Department of Chemical Engineering, CEMMPRE, University of Coimbra, Rua Sílvio Lima-Pólo II, Coimbra, Portugal
| | - Jorge F J Coelho
- Department of Chemical Engineering, CEMMPRE, University of Coimbra, Rua Sílvio Lima-Pólo II, Coimbra, Portugal
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Cai W, Yang S, Zhang L, Chen Y, Zhang L, Tan J. Efficient Synthesis and Self-Assembly of Segmented Hyperbranched Block Copolymers via RAFT-Mediated Dispersion Polymerization Using Segmented Hyperbranched Macro-RAFT Agents. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00545] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Weibin Cai
- Department of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Shuaiqi Yang
- Department of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Lunqiang Zhang
- Shenzhen Newccess Industrial Co., Ltd., Shenzhen 518038, China
| | - Ying Chen
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangzhou 510006, China
| | - Li Zhang
- Department of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangzhou 510006, China
| | - Jianbo Tan
- Department of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangzhou 510006, China
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5
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An Z, Cao B, Zhang J, Zhang B, Zhou C, Hu X, Chen W. Efficient Transient Expression of Plasmid DNA Using Poly (2-( N, N-Dimethylamino) Ethyl Methacrylate) in Plant Cells. Front Bioeng Biotechnol 2022; 10:805996. [PMID: 35273955 PMCID: PMC8902165 DOI: 10.3389/fbioe.2022.805996] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 01/19/2022] [Indexed: 11/30/2022] Open
Abstract
Nanomaterials have been widely studied for their potential to become the new generation of nanocarriers in gene transfection, yet it remains still difficult to apply them efficiently and succinctly to plant cells. Poly (2-(N,N-dimethylamino) ethyl methacrylate) (PDMAEMA), which possesses temperature and pH dual-sensitivity, has largely been applied in animal cells, but it is rarely involved in plant cells. As a proof of concept, PDMAEMA as a gene carrier is incubated with plasmid GFP (pGFP) to explore its transfection ability in plants, and cationic polymer polyethylenimine (PEI) is used as a control. pGFP was efficiently condensed into the nanostructure by electrostatic interactions at an N/P (amino group from cationic polymers/phosphate group from plasmid DNA (pDNA)) ratio of 15; after complexation into nanocarriers, pGFP was protected from endonuclease degradation according to the DNase I digestion assay. After incubation with protoplasts and leaves, GFP was observed with confocal microscopy in plant cells. Western blot experiments confirmed GFP expression at the protein level. Toxicity assay showed PDMAEMA had a lower toxicity than PEI. These results showed that transient expression of pGFP was readily achieved in Arabidopsis thaliana and Nicotiana benthamiana. Notably, PDMAEMA showed lower cytotoxicity than PEI upon incubation with Nicotiana benthamiana leaves. PDMAEMA exhibited great potency for DNA delivery in plant cells. This work provides us with new ideas of more concise and more effective methods for plant transformation.
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Affiliation(s)
- Zishuai An
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangzhou Key Laboratory of Spectral Analysis and Functional Probes, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Bing Cao
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangzhou Key Laboratory of Spectral Analysis and Functional Probes, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Junzhe Zhang
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangzhou Key Laboratory of Spectral Analysis and Functional Probes, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Baihong Zhang
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangzhou Key Laboratory of Spectral Analysis and Functional Probes, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Chengqian Zhou
- Neuroscience Laboratory, Hugo Moser Research Institute at Kennedy Krieger, Baltimore, MD, United States
| | - Xianglong Hu
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangzhou Key Laboratory of Spectral Analysis and Functional Probes, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Wenli Chen
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
- Guangzhou Key Laboratory of Spectral Analysis and Functional Probes, College of Biophotonics, South China Normal University, Guangzhou, China
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6
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Yin L, Liu L, Zhang N. Brush-like polymers: design, synthesis and applications. Chem Commun (Camb) 2021; 57:10484-10499. [PMID: 34550120 DOI: 10.1039/d1cc03940g] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
With the development of controlled polymerisation, almost all polymerisation strategies have been successfully transplanted to surface-initiated polymerisation. The resulting polymer brushes have emerged as an effective tool for surface functionalization and modulation of the surface properties of materials. To meet various demands it is possible to tailor a material surface with polymer brushes that have diverse dimensionalities, morphologies and compositions. The crowded environment within polymer brushes as well as the stretched conformation of polymer chains sometimes provide unique physicochemical properties, which lead to the delicate creation of inorganic-organic hybridised nanostructures, anti-fouling coatings, biomedical carriers, and materials for use in lubrication, photonics and energy storage. So far, challenges remain in the high-precision synthesis and topological control needed to realize extended applications of polymer brushes. In this Feature Article, we highlight the topology, potential application prospects and various synthetic protocols, particularly for recently established methods, for the efficient synthesis of polymer brushes, as well as their benefits and limitations.
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Affiliation(s)
- Liying Yin
- Department of Chemistry, Northeast Normal University, Changchun 130024, P. R. China.
| | - Lin Liu
- Department of Chemistry, Northeast Normal University, Changchun 130024, P. R. China.
| | - Ning Zhang
- Department of Chemistry, Northeast Normal University, Changchun 130024, P. R. China.
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7
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Saadati A, Hasanzadeh M, Seidi F. Biomedical application of hyperbranched polymers: Recent Advances and challenges. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116308] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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8
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Yao Y, Wu JH, Cao SJ, Xu BY, Yan JT, Wu D, Li W, Zhang A. Thermoresponsive Nanogels from Dendronized Copolymers for Complexation, Protection and Release of Nucleic Acids. CHINESE JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1007/s10118-020-2452-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Lechuga-Islas VD, Festag G, Rosales-Guzmán M, Vega-Becerra OE, Guerrero-Santos R, Schubert US, Guerrero-Sánchez C. Quasi-block copolymer design of quaternized derivatives of poly(2-(dimethylamino)ethyl methacrylate): Investigations on thermo-induced self-assembly. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2019.109457] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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10
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Simonova MA, Khayrullin AR, Turina VO, Kamorina SI, Kamorin DM, Sadikov AY, Filippov AP. Self-organization in aqueous solutions of thermosensitive statistical copolymers based on N-(dimethylamino)ethyl methacrylate. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2019. [DOI: 10.1080/1023666x.2019.1649026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Maria A. Simonova
- Institute of Macromolecular Compounds of Russian Academy of Sciences, Saint Petersburg, Russia
| | - Andrey R. Khayrullin
- Institute of Macromolecular Compounds of Russian Academy of Sciences, Saint Petersburg, Russia
| | | | - Sofija I. Kamorina
- Nizhny Novgorod State Technical University n.a. R.E. Alekseev, Nizhny Novgorod, Russia
| | - Denis M. Kamorin
- Nizhny Novgorod State Technical University n.a. R.E. Alekseev, Nizhny Novgorod, Russia
- Department of Organic Chemistry, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - Anton Yu Sadikov
- Nizhny Novgorod State Technical University n.a. R.E. Alekseev, Nizhny Novgorod, Russia
- Department of Organic Chemistry, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - Alexander P. Filippov
- Institute of Macromolecular Compounds of Russian Academy of Sciences, Saint Petersburg, Russia
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11
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Chen H, You S, Cai Q, Zheng Y, Zhang L, Shen J, Yin M. Design and synthesis of a fluorescent amino poly(glycidyl methacrylate) for efficient gene delivery. J Mater Chem B 2019; 7:1875-1881. [DOI: 10.1039/c8tb02968g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A fluorescent amino poly(glycidyl methacrylate) (PGOHMA) was synthesized by atom transfer radical polymerization (ATRP) and post-polymerization. PGOHMA has low cytotoxicity and high DNA delivery efficiency.
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Affiliation(s)
- Hongtao Chen
- State Key Laboratory of Chemical Resource Engineering
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- BAIC-SM
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
| | - Shusen You
- State Key Laboratory of Chemical Resource Engineering
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- BAIC-SM
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
| | - Qing Cai
- State Key Laboratory of Chemical Resource Engineering
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- BAIC-SM
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
| | - Yang Zheng
- Department of Entomology, China Agricultural University
- 100193 Beijing
- China
| | - Liqun Zhang
- State Key Laboratory of Chemical Resource Engineering
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- BAIC-SM
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
| | - Jie Shen
- Department of Entomology, China Agricultural University
- 100193 Beijing
- China
| | - Meizhen Yin
- State Key Laboratory of Chemical Resource Engineering
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- BAIC-SM
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
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Jeon IY, Noh HJ, Baek JB. Hyperbranched Macromolecules: From Synthesis to Applications. Molecules 2018; 23:E657. [PMID: 29538327 PMCID: PMC6017023 DOI: 10.3390/molecules23030657] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 03/09/2018] [Accepted: 03/10/2018] [Indexed: 11/16/2022] Open
Abstract
Hyperbranched macromolecules (HMs, also called hyperbranched polymers) are highly branched three-dimensional (3D) structures in which all bonds converge to a focal point or core, and which have a multiplicity of reactive chain-ends. This review summarizes major types of synthetic strategies exploited to produce HMs, including the step-growth polycondensation, the self-condensing vinyl polymerization and ring opening polymerization. Compared to linear analogues, the globular and dendritic architectures of HMs endow new characteristics, such as abundant functional groups, intramolecular cavities, low viscosity, and high solubility. After discussing the general concepts, synthesis, and properties, various applications of HMs are also covered. HMs continue being materials for topical interest, and thus this review offers both concise summary for those new to the topic and for those with more experience in the field of HMs.
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Affiliation(s)
- In-Yup Jeon
- Department of Chemical Engineering, Wonkwang University, 460, Iksandae-ro, Iksan, Jeonbuk 54538, Korea.
| | - Hyuk-Jun Noh
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50, UNIST, Ulsan 44919, Korea.
| | - Jong-Beom Baek
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50, UNIST, Ulsan 44919, Korea.
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A direct comparison of linear and star-shaped poly(dimethylaminoethyl acrylate) polymers for polyplexation with DNA and cytotoxicity in cultured cell lines. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2016.08.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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14
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Pal S, Brooks WLA, Dobbins DJ, Sumerlin BS. Employing a Sugar-Derived Dimethacrylate to Evaluate Controlled Branch Growth during Polymerization with Multiolefinic Compounds. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b02079] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sunirmal Pal
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - William L. A. Brooks
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Daniel J. Dobbins
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
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15
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Supramolecular host-guest polycationic gene delivery system based on poly(cyclodextrin) and azobenzene-terminated polycations. Colloids Surf B Biointerfaces 2016; 147:25-35. [PMID: 27478960 DOI: 10.1016/j.colsurfb.2016.07.028] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Revised: 07/08/2016] [Accepted: 07/11/2016] [Indexed: 12/21/2022]
Abstract
This article describes the supramolecular host-guest polycationic gene delivery system based on poly(β-cyclodextrin) (PCD) and azobenzene-terminated polycations. The azobenzene-terminated linear (Az-LPDM) and branched (Az-BPDM) cationic polymers were synthesized by atom transfer radical polymerization (ATRP) of 2-dimethylamino ethyl methacrylate (DMAEMA). The formation and photosensitive behavior of the supramolecular polycations of azobenzene-terminated polycations Az-LPDM and Az-BPDM with PCD were confirmed by UV-vis and NMR analysis. The supramolecular PCD/Az-BPDM/DNA and PCD/Az-LPDM/DNA polyplexes showed smaller size and were less positive than those of their corresponding polyplexes without PCD. Moreover, the UV irradiation may promote release of DNA from the photosensitive supramolecular polyplexes due to dissociation of supramoelcular polyplexes. In vitro experiments revealed that the photosensitive supramolecular polycationic polyplexes (PCD/Az-LPDM/DNA and PCD/Az-BPDM/DNA) exhibited enhancement of cellular uptake, higher transfection efficiency, and lower cytoxicity compared to the azobenzene-terminated polycation/DNA polyplexes in the absence of PCD. Branched polycationic polyplexes showed higher transfection efficiency than its linear polycationic polyplexes. Furthermore, after UV irradiation, the transfection efficiency of photosensitive supramolecular polyplexes was improved resulting from more DNAs delivered and released inside of the cell nuclei. Thus this photoresponsive supramolecular host-guest system containing azobenzene-terminated branched cationic polymers and PCD is a promising gene vector.
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16
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Su Z, Jiang X. Multi-stimuli responsive amine-containing polyethers: Novel building blocks for smart assemblies. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.04.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Sun J, Luo T, Sheng R, Li H, Wang Z, Cao A. Intracellular plasmid DNA delivery by self-assembled nanoparticles of amphiphilic PHML-b-PLLA-b-PHML copolymers and the endocytosis pathway analysis. J Biomater Appl 2016; 31:606-621. [PMID: 27059498 DOI: 10.1177/0885328216642665] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This work presents a new series of polycationic nanoparticles of (l-)-lysine conjugated amphiphilic triblock copolymer poly(hydroxyletheyl methacrylate-L-lysine)-b-poly(L-lactide)-b-poly(hydroxyletheyl methacrylate-L-lysine)s (PHML-b-PLLA-b-PHML) as potent low cytotoxic vectors for intracellular plasmid DNA delivery. First, the triblock PHML-b-PLLA-b-PHML copolymers were prepared via a combination of metal-free controlled ring opening polymerization and successive atom transfer radical polymerization. Then the cationic PHML-b-PLLA-b-PHML nanoparticles were further prepared by solution self-assembly. The particle size, zeta potential and morphology of as-prepared PHML-b-PLLA-b-PHML nanoparticles were characterized by dynamic light scattering and atomic force microscopy, respectively. The plasmid DNA binding affinities and polyplex stabilities were separately explored by agarose gel retardation and DNase I degradation assays. Then in vitro cytotoxicity and gene transfection efficiency of the PHML-b-PLLA-b-PHML nanoparticles vectors as well as relevant polyplex endocytosis pathway were investigated with H1299 cells. It was revealed that the PHML-b-PLLA-b-PHML nanoparticles exhibited low cytotoxicity, strong plasmid DNA binding affinity, high polyplex stability and efficient plasmid DNA transfection even under serum conditions (10% FBS). Moreover, the endocytosis analysis results disclosed that the PHML30-b-PLLA-b-PHML30 nanoparticle/plasmid DNA polyplexes were predominantly involved in lipid-raft-mediated endocytosis pathway, similar to that of SV40 virus-based vectors.
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Affiliation(s)
- Jingjing Sun
- Laboratory of Synthetic and Self-assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Ting Luo
- Laboratory of Synthetic and Self-assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Ruilong Sheng
- Laboratory of Synthetic and Self-assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China Department of Chemistry, Université de Montréal, Succursale Centre-ville, Montréal, Quebéc, Canada
| | - Hui Li
- Laboratory of Synthetic and Self-assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Zhao Wang
- Laboratory of Synthetic and Self-assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Amin Cao
- Laboratory of Synthetic and Self-assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
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18
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Boyer C, Corrigan NA, Jung K, Nguyen D, Nguyen TK, Adnan NNM, Oliver S, Shanmugam S, Yeow J. Copper-Mediated Living Radical Polymerization (Atom Transfer Radical Polymerization and Copper(0) Mediated Polymerization): From Fundamentals to Bioapplications. Chem Rev 2015; 116:1803-949. [DOI: 10.1021/acs.chemrev.5b00396] [Citation(s) in RCA: 356] [Impact Index Per Article: 39.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Cyrille Boyer
- Australian Centre for Nanomedicine, and ‡Centre for Advanced
Macromolecular
Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney 2052, Australia
| | - Nathaniel Alan Corrigan
- Australian Centre for Nanomedicine, and ‡Centre for Advanced
Macromolecular
Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney 2052, Australia
| | - Kenward Jung
- Australian Centre for Nanomedicine, and ‡Centre for Advanced
Macromolecular
Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney 2052, Australia
| | - Diep Nguyen
- Australian Centre for Nanomedicine, and ‡Centre for Advanced
Macromolecular
Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney 2052, Australia
| | - Thuy-Khanh Nguyen
- Australian Centre for Nanomedicine, and ‡Centre for Advanced
Macromolecular
Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney 2052, Australia
| | - Nik Nik M. Adnan
- Australian Centre for Nanomedicine, and ‡Centre for Advanced
Macromolecular
Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney 2052, Australia
| | - Susan Oliver
- Australian Centre for Nanomedicine, and ‡Centre for Advanced
Macromolecular
Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney 2052, Australia
| | - Sivaprakash Shanmugam
- Australian Centre for Nanomedicine, and ‡Centre for Advanced
Macromolecular
Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney 2052, Australia
| | - Jonathan Yeow
- Australian Centre for Nanomedicine, and ‡Centre for Advanced
Macromolecular
Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney 2052, Australia
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20
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Manojkumar K, Prabhu Charan KT, Sivaramakrishna A, Jha PC, Khedkar VM, Siva R, Jayaraman G, Vijayakrishna K. Biophysical characterization and molecular docking studies of imidazolium based polyelectrolytes-DNA complexes: role of hydrophobicity. Biomacromolecules 2015; 16:894-903. [PMID: 25671794 DOI: 10.1021/bm5018029] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Nonviral gene delivery vectors are acquiring greater attention in the field of gene therapy by replacing the biological viral vectors. DNA-cationic polymer complexes are one of the most promising systems to find application in gene therapy. Hence, a complete insight of their biophysical characterization and binding energy profile is important in understanding the mechanism involved in nonviral gene therapy. In this investigation, the interaction between calf thymus DNA (ctDNA) and imidazolium-based poly(ionic liquids) (PILs) also known as polyelectrolytes with three different alkyl side chains (ethyl, butyl, and hexyl) in physiological conditions using various spectroscopic experiments with constant DNA concentration and varying polyelectrolyte concentrations is reported. UV-visible absorption, fluorescence quenching studies, gel electrophoresis, circular dichroism (CD), and Fourier transform infrared spectroscopy (FTIR) have confirmed the binding of polyelectrolytes with DNA. UV-vis absorption measurements and fluorescence quenching revealed that the binding between DNA and the polyelectrolyte is dominated by electrostatic interactions. Additionally, CD and FTIR results indicated that the DNA retained its B-form with minor perturbation in the phosphate backbone without significant change in the conformation of its base pairs. Preference for alkyl side chains (K(PIL-Ethyl Br) < K(PIL-Butyl Br) < K(PIL-Hexyl Br)) toward efficient binding between the polyelectrolyte and DNA was inferred from the binding and quenching constants calculated from the absorption and emission spectra, respectively. Further, in silico molecular docking studies not only validated the observed binding trend but also provided insight into the binding mode of the polyelectrolyte-DNA complex.
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Affiliation(s)
- Kasina Manojkumar
- Organic Chemistry Division, School of Advanced Sciences, ∥Plant Biotechnology Division, School of Biosciences and Technology, and ⊥Bioinformatics Division, School of Biosciences and Technology, VIT University , Vellore-632014, Tamil Nadu, India
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21
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Dong R, Pang Y, Su Y, Zhu X. Supramolecular hydrogels: synthesis, properties and their biomedical applications. Biomater Sci 2015. [PMID: 26221932 DOI: 10.1039/c4bm00448e] [Citation(s) in RCA: 170] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
As a novel class of three-dimensional (3D) hydrophilic cross-linked polymers, supramolecular hydrogels not only display unique physicochemical properties (e.g., water-retention ability, drug loading capacity, biodegradability and biocompatibility, biostability) as well as specific functionalities (e.g., optoelectronic properties, bioactivity, self-healing ability, shape memory ability), but also have the capability to undergo reversible gel-sol transition in response to various environmental stimuli inherent to the noncovalent cross-linkages, thereby showing great potential as promising biomaterial scaffolds for diagnosis and therapy. In this Review, we summarized the recent progress in the design and synthesis of supramolecular hydrogels through specific, directional noncovalent interactions, with particular emphasis on the structure-property relationship, as well as their wide-ranging applications in disease diagnosis and therapy including bioimaging, biodetection, therapeutic delivery, and tissue engineering. We believe that these current achievements in supramolecular hydrogels will greatly stimulate new ideas and inspire persistent efforts in this hot topic area in future.
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Affiliation(s)
- Ruijiao Dong
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China.
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22
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Dong R, Zhou Y, Huang X, Zhu X, Lu Y, Shen J. Functional supramolecular polymers for biomedical applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:498-526. [PMID: 25393728 DOI: 10.1002/adma.201402975] [Citation(s) in RCA: 341] [Impact Index Per Article: 37.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 08/17/2014] [Indexed: 05/08/2023]
Abstract
As a novel class of dynamic and non-covalent polymers, supramolecular polymers not only display specific structural and physicochemical properties, but also have the ability to undergo reversible changes of structure, shape, and function in response to diverse external stimuli, making them promising candidates for widespread applications ranging from academic research to industrial fields. By an elegant combination of dynamic/reversible structures with exceptional functions, functional supramolecular polymers are attracting increasing attention in various fields. In particular, functional supramolecular polymers offer several unique advantages, including inherent degradable polymer backbones, smart responsiveness to various biological stimuli, and the ease for the incorporation of multiple biofunctionalities (e.g., targeting and bioactivity), thereby showing great potential for a wide range of applications in the biomedical field. In this Review, the trends and representative achievements in the design and synthesis of supramolecular polymers with specific functions are summarized, as well as their wide-ranging biomedical applications such as drug delivery, gene transfection, protein delivery, bio-imaging and diagnosis, tissue engineering, and biomimetic chemistry. These achievements further inspire persistent efforts in an emerging interdisciplin-ary research area of supramolecular chemistry, polymer science, material science, biomedical engineering, and nanotechnology.
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Affiliation(s)
- Ruijiao Dong
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, PR China
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23
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Liu Y, Lin C, Li J, Qu Y, Ren J. In vitro and in vivo gene transfection using biodegradable and low cytotoxic nanomicelles based on dendritic block copolymers. J Mater Chem B 2015; 3:688-699. [DOI: 10.1039/c4tb01406e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Dendritic PCL-b-PDMAEMA copolymers have been used as non-viral vectors for gene transfection and exhibited high transfection efficiencies and low cytotoxicity.
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Affiliation(s)
- Yan Liu
- Institute of Nano and Biopolymeric Materials
- School of Materials Science and Engineering
- Tongji University
- Shanghai 201804
- China
| | - Chao Lin
- The Institute for Biomedical Engineering & Nano Science
- School of Medicine
- Tongji University
- Shanghai 200092
- China
| | - Jianbo Li
- Institute of Nano and Biopolymeric Materials
- School of Materials Science and Engineering
- Tongji University
- Shanghai 201804
- China
| | - Yang Qu
- Institute of Nano and Biopolymeric Materials
- School of Materials Science and Engineering
- Tongji University
- Shanghai 201804
- China
| | - Jie Ren
- Institute of Nano and Biopolymeric Materials
- School of Materials Science and Engineering
- Tongji University
- Shanghai 201804
- China
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Abstract
The recent research progress in biological and biomedical applications of hyperbranched polymers has been summarized in this review.
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Affiliation(s)
- Dali Wang
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- 200240 Shanghai
- P. R. China
| | - Tianyu Zhao
- Charles Institute of Dermatology
- School of Medicine and Medical Science
- University College Dublin
- Dublin 4
- Ireland
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- 200240 Shanghai
- P. R. China
| | - Deyue Yan
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- 200240 Shanghai
- P. R. China
| | - Wenxin Wang
- Charles Institute of Dermatology
- School of Medicine and Medical Science
- University College Dublin
- Dublin 4
- Ireland
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25
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Zheng Y, Li S, Weng Z, Gao C. Hyperbranched polymers: advances from synthesis to applications. Chem Soc Rev 2015; 44:4091-130. [DOI: 10.1039/c4cs00528g] [Citation(s) in RCA: 498] [Impact Index Per Article: 55.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This review summarizes the advances in hyperbranched polymers from the viewpoint of structure, click synthesis and functionalization towards their applications in the last decade.
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Affiliation(s)
- Yaochen Zheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Sipei Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Zhulin Weng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Chao Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
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26
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Cai X, Li Y, Yue D, Yi Q, Li S, Shi D, Gu Z. Reversible PEGylation and Schiff-base linked imidazole modification of polylysine for high-performance gene delivery. J Mater Chem B 2015; 3:1507-1517. [DOI: 10.1039/c4tb01724b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the designed polylysine based catiomer the reversible PEGylation was introduced forin vivocirculation and to augment the cellular internalization, while the Schiff-base linked imidazole to accelerate the endosomal escape and facilitate intracellular DNA unpacking and release.
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Affiliation(s)
- Xiaojun Cai
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
- The Institute for Biomedical Engineering and Nano Science
| | - Yongyong Li
- The Institute for Biomedical Engineering and Nano Science
- Tongji University School of Medicine
- Tongji University
- Shanghai
- China
| | - Dong Yue
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Qiangying Yi
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Shuo Li
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
- School of Chemical Engineering
| | - Donglu Shi
- The Institute for Biomedical Engineering and Nano Science
- Tongji University School of Medicine
- Tongji University
- Shanghai
- China
| | - Zhongwu Gu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
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27
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You S, Cai Q, Zheng Y, He B, Shen J, Yang W, Yin M. Perylene-cored star-shaped polycations for fluorescent gene vectors and bioimaging. ACS APPLIED MATERIALS & INTERFACES 2014; 6:16327-16334. [PMID: 25159606 DOI: 10.1021/am5045967] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Two star polycations, poly(2-aminoethyl methacrylate) (PAEMA, P1) and poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA, P2), have been synthesized with perylene diimide (PDI) as the central fluorophore. (1)H NMR and (13)C NMR are used to confirm the successful synthesis of a macromolecular initiator. Using ATRP strategy, P1 and P2 are obtained with narrow molecular weight distribution. The star polymers have good fluorescence properties in aqueous solution, which provides fluorescent tracing and imaging during gene delivery. Both P1 and P2 can efficiently condense DNA into stable nanoparticles. Transfection studies demonstrate that P1 and P2 deliver DNA into live cells with higher efficiency and lower cytotoxicity than polyethylenimine (PEI, 25 kDa). P2 shows higher capacity for gene delivery than P1 due to its better buffering and faster rate of cellular internalization.
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Affiliation(s)
- Shusen You
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology , 100029 Beijing, China
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28
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Car A, Baumann P, Duskey JT, Chami M, Bruns N, Meier W. pH-responsive PDMS-b-PDMAEMA micelles for intracellular anticancer drug delivery. Biomacromolecules 2014; 15:3235-45. [PMID: 25068477 DOI: 10.1021/bm500919z] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A series of poly(dimethysiloxane)-b-poly(2-(dimethylamino)ethyl methacrylate) (PDMS-b-PDMAEMA) block copolymers were synthesized with atom transfer radical polymerization (ATRP). In aqueous solution the polymers self-assembled into micelles with diameters between 80 and 300 nm, with the ability to encapsulate DOX. The polymer with the shortest PDMAEMA block (5 units) displayed excellent cell viability, while micelles containing longer PDMAEMA block lengths (13 and 22 units) led to increased cytotoxicity. The carriers released DOX in response to a decrease in pH from 7.4 to 5.5. Confocal laser scanning microscopy (CLSM) revealed that nanoparticles were taken up by endocytosis into acidic cell compartments. Furthermore, DOX-loaded nanocarriers exhibited intracellular pH-response as changes in cell morphology and drug release were observed within 24 h.
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Affiliation(s)
- Anja Car
- Department of Chemistry, University of Basel , Klingelbergstrasse 80, 4056 Basel, Switzerland
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29
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Bitoque DB, Simão S, Oliveira AV, Machado S, Duran MR, Lopes E, da Costa AMR, Silva GA. Efficiency of RAFT-synthesized PDMAEMA in gene transfer to the retina. J Tissue Eng Regen Med 2014; 11:265-275. [PMID: 24934519 DOI: 10.1002/term.1909] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 03/18/2014] [Accepted: 04/20/2014] [Indexed: 12/20/2022]
Abstract
Gene therapy has long been heralded as the new hope to evolve from symptomatic care of genetic pathologies to a full cure. Recent successes in using gene therapy for treating several ocular and haematopoietic pathologies have shown the great potential of this approach that, in the early days, relied on the use of viral vectors, which were considered by many to be undesirable for human treatment. Therefore, there is considerable interest and effort in developing non-viral vectors, with efficiency close to that of viral vectors. The aim of this study was to develop suitable non-viral carriers for gene therapy to treat pathologies affecting the retina. In this study poly(2-(N,N-dimethylamino)ethyl methacrylate), PDMAEMA was synthesized by reversible addition-fragmentation chain transfer (RAFT) and the in vitro cytocompatibility and transfection efficiency of a range of polymer:DNA ratios evaluated using a retinal cell line; in vivo biocompatibility was evaluated by ocular injection in C57BL/6 mice. The results showed that through RAFT, it is possible to produce a defined-size polymer that is compatible with cell viability in vitro and capable of efficiently directing gene expression in a polymer-DNA ratio-dependent manner. When injected into the eyes of mice, these vectors induced a transient, mild inflammation, characteristic of the implantation of medical devices. These results form the basis of future studies where RAFT-synthesized PDMAEMA will be used to deliver gene expression systems to the retina of mouse models of retinal pathologies. Copyright © 2014 John Wiley & Sons, Ltd.
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Affiliation(s)
- Diogo B Bitoque
- Centre for Molecular and Structural Biomedicine (CBME/IBB, LA), University of Algarve, Portugal.,Department of Biomedical Sciences and Medicine, University of Algarve, Faro, Portugal
| | - Sónia Simão
- Centre for Molecular and Structural Biomedicine (CBME/IBB, LA), University of Algarve, Portugal
| | - Ana V Oliveira
- Centre for Molecular and Structural Biomedicine (CBME/IBB, LA), University of Algarve, Portugal.,Department of Biomedical Sciences and Medicine, University of Algarve, Faro, Portugal.,Doctoral Programme in Biomedical Sciences, Department of Biomedical Sciences and Medicine, University of Algarve, Faro, Portugal
| | - Susana Machado
- Centre for Molecular and Structural Biomedicine (CBME/IBB, LA), University of Algarve, Portugal
| | - Margarita R Duran
- Andalusian Centre for Molecular Biology and Regenerative Medicine (CABIMER), Seville, Spain
| | - Eduardo Lopes
- Centre for Molecular and Structural Biomedicine (CBME/IBB, LA), University of Algarve, Portugal
| | - Ana M Rosa da Costa
- Department of Chemistry and Pharmacy, University of Algarve, Faro, Portugal.,Algarve Chemistry Research Centre (CIQA), University of Algarve, Faro, Portugal
| | - Gabriela A Silva
- Centre for Molecular and Structural Biomedicine (CBME/IBB, LA), University of Algarve, Portugal.,Department of Biomedical Sciences and Medicine, University of Algarve, Faro, Portugal
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30
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Moreno S, Lozano-Cruz T, Ortega P, Tarazona MP, de la Mata FJ, Gómez R. Synthesis of new amphiphilic water-stable hyperbranched polycarbosilane polymers. POLYM INT 2014. [DOI: 10.1002/pi.4679] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Silvia Moreno
- Departamento de Química Organica y Química Inorganica; Universidad de Alcalá, Campus Universitario; E-28871 Alcalá de Henares Spain
- Networking Research Center on Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Spain
| | - Tania Lozano-Cruz
- Departamento de Química Organica y Química Inorganica; Universidad de Alcalá, Campus Universitario; E-28871 Alcalá de Henares Spain
- Networking Research Center on Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Spain
| | - Paula Ortega
- Departamento de Química Organica y Química Inorganica; Universidad de Alcalá, Campus Universitario; E-28871 Alcalá de Henares Spain
- Networking Research Center on Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Spain
| | - M Pilar Tarazona
- Departamento Química Analítica, Química Física e Ingeniería Química; Universidad de Alcalá, Campus Universitario; E-28871 Alcalá de Henares Spain
| | - F Javier de la Mata
- Departamento de Química Organica y Química Inorganica; Universidad de Alcalá, Campus Universitario; E-28871 Alcalá de Henares Spain
- Networking Research Center on Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Spain
| | - Rafael Gómez
- Departamento de Química Organica y Química Inorganica; Universidad de Alcalá, Campus Universitario; E-28871 Alcalá de Henares Spain
- Networking Research Center on Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Spain
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31
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Bansal R, Singh M, Gupta KC, Kumar P. Oligoamine-tethered low generation polyamidoamine dendrimers as potential nucleic acid carriers. Biomater Sci 2014; 2:1275-1286. [DOI: 10.1039/c4bm00115j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Oligoamine-tethered low generation PAMAM dendrimers (mG2–mG4) have been synthesized, which showed significantly higher transfection efficiency with minimal cytotoxicity in vitro.
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Affiliation(s)
- Ruby Bansal
- Nucleic Acids Research Laboratory
- CSIR-Institute of Genomics and Integrative Biology
- Delhi-110007, India
- Academy of Scientific and Innovative Research
- New Delhi, India
| | - Manju Singh
- Nucleic Acids Research Laboratory
- CSIR-Institute of Genomics and Integrative Biology
- Delhi-110007, India
| | - Kailash Chand Gupta
- Nucleic Acids Research Laboratory
- CSIR-Institute of Genomics and Integrative Biology
- Delhi-110007, India
- CSIR-Indian Institute of Toxicology Research
- Lucknow-226001, India
| | - Pradeep Kumar
- Nucleic Acids Research Laboratory
- CSIR-Institute of Genomics and Integrative Biology
- Delhi-110007, India
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32
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Sun J, Zeng F, Jian H, Wu S. Grafting zwitterionic polymer chains onto PEI as a convenient strategy to enhance gene delivery performance. Polym Chem 2013. [DOI: 10.1039/c3py00752a] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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