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Studzian M, Działak P, Pułaski Ł, Hedstrand DM, Tomalia DA, Klajnert-Maculewicz B. Synthesis, Internalization and Visualization of N-(4-Carbomethoxy) Pyrrolidone Terminated PAMAM [G5:G3-TREN] Tecto(dendrimers) in Mammalian Cells. Molecules 2020; 25:molecules25194406. [PMID: 32992824 PMCID: PMC7583011 DOI: 10.3390/molecules25194406] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/20/2020] [Accepted: 09/22/2020] [Indexed: 11/25/2022] Open
Abstract
Tecto(dendrimers) are well-defined, dendrimer cluster type covalent structures. In this article, we present the synthesis of such a PAMAM [G5:G3-(TREN)]-N-(4-carbomethoxy) pyrrolidone terminated tecto(dendrimer). This tecto(dendrimer) exhibits nontraditional intrinsic luminescence (NTIL; excitation 376 nm; emission 455 nm) that has been attributed to three fluorescent components characterized by different fluorescence lifetimes. Furthermore, it has been shown that this PAMAM [G5:G3-(TREN)]-N-(4-carbomethoxy) pyrrolidone terminated tecto(dendrimer) is able to form a polyplex with double stranded DNA, and is nontoxic for HeLa and HMEC-1 cells up to a concentration of 10 mg/mL, even though it accumulates in endosomal compartments as demonstrated by its unique NTIL emission properties. Many of the above features would portend the proposed use of this tecto(dendrimer) as an efficient transfection agent. Quite surprisingly, transfection activity could not be demonstrated in HeLa cells, and the possible reasons are discussed in the article.
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Affiliation(s)
- Maciej Studzian
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland; (M.S.); (P.D.)
- Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland;
| | - Paula Działak
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland; (M.S.); (P.D.)
| | - Łukasz Pułaski
- Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland;
- Laboratory of Transcriptional Regulation, Institute of Medical Biology PAS, Lodowa 106, 93-232 Lodz, Poland
| | - David M. Hedstrand
- National Dendrimer & Nanotechnology Center, NanoSynthons LCC, 1200 N. Fancher Avenue, Mt. Pleasant, MI 48858, USA;
| | - Donald A. Tomalia
- National Dendrimer & Nanotechnology Center, NanoSynthons LCC, 1200 N. Fancher Avenue, Mt. Pleasant, MI 48858, USA;
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Physics, Virginia Commonwealth University, Richmond, VA 23173, USA
- Correspondence: (D.A.T.); (B.K.-M.)
| | - Barbara Klajnert-Maculewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska St., 90-236 Lodz, Poland; (M.S.); (P.D.)
- Leibniz Institute of Polymer Research, 01397 Dresden, Germany
- Correspondence: (D.A.T.); (B.K.-M.)
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Gutiérrez-Lovera C, Vázquez-Ríos AJ, Guerra-Varela J, Sánchez L, de la Fuente M. The Potential of Zebrafish as a Model Organism for Improving the Translation of Genetic Anticancer Nanomedicines. Genes (Basel) 2017; 8:E349. [PMID: 29182542 PMCID: PMC5748667 DOI: 10.3390/genes8120349] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 11/06/2017] [Accepted: 11/21/2017] [Indexed: 12/21/2022] Open
Abstract
In the last few decades, the field of nanomedicine applied to cancer has revolutionized cancer treatment: several nanoformulations have already reached the market and are routinely being used in the clinical practice. In the case of genetic nanomedicines, i.e., designed to deliver gene therapies to cancer cells for therapeutic purposes, advances have been less impressive. This is because of the many barriers that limit the access of the therapeutic nucleic acids to their target site, and the lack of models that would allow for an improvement in the understanding of how nanocarriers can be tailored to overcome them. Zebrafish has important advantages as a model species for the study of anticancer therapies, and have a lot to offer regarding the rational development of efficient delivery of genetic nanomedicines, and hence increasing the chances of their successful translation. This review aims to provide an overview of the recent advances in the development of genetic anticancer nanomedicines, and of the zebrafish models that stand as promising tools to shed light on their mechanisms of action and overall potential in oncology.
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Affiliation(s)
- C Gutiérrez-Lovera
- Zoology, Genetics and Physical Anthropology Department Veterinary Faculty, Universidade de Santiago de Compostela, Lugo 27002, Spain.
- Nano-Oncology Unit, Translational Medical Oncology Group, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital of Santiago de Compostela (CHUS), CIBERONC, Santiago de Compostela 15706, Spain.
| | - A J Vázquez-Ríos
- Nano-Oncology Unit, Translational Medical Oncology Group, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital of Santiago de Compostela (CHUS), CIBERONC, Santiago de Compostela 15706, Spain.
| | - J Guerra-Varela
- Zoology, Genetics and Physical Anthropology Department Veterinary Faculty, Universidade de Santiago de Compostela, Lugo 27002, Spain.
- Geneaqua S.L., Lugo 27002, Spain.
| | - L Sánchez
- Zoology, Genetics and Physical Anthropology Department Veterinary Faculty, Universidade de Santiago de Compostela, Lugo 27002, Spain.
| | - M de la Fuente
- Nano-Oncology Unit, Translational Medical Oncology Group, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital of Santiago de Compostela (CHUS), CIBERONC, Santiago de Compostela 15706, Spain.
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Shih Y, Venault A, Tayo LL, Chen SH, Higuchi A, Deratani A, Chinnathambi A, Alharbi SA, Quemener D, Chang Y. A Zwitterionic-Shielded Carrier with pH-Modulated Reversible Self-Assembly for Gene Transfection. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:1914-1926. [PMID: 28147481 DOI: 10.1021/acs.langmuir.6b03685] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Cationic vectors are ideal candidates for gene delivery thanks to their capability to carry large gene inserts and their scalable production. However, their cationic density gives rise to high cytotoxicity. We present the proper designed core-shell polyplexes made of either poly(ethylene imine) (PEI) or poly(2-dimethylamino ethyl methacrylate) (PDMAEMA) as the core and zwitterionic poly(acrylic acid)-block-poly(sulfobetaine methacrylate) (PAA-b-PSBMA) diblock copolymer as the shell. Gel retardation and ethidium bromide displacement assays were used to determine the PEI/DNA or PDMAEMA/DNA complexation. At neutral pH, the copolymer serves as a protective shell of the complex. As PSBMA is a nonfouling block, the shell reduced the cytotoxicity and enhanced the hemocompatibility (lower hemolysis activity, longer plasma clotting time) of the gene carriers. PAA segments in the copolymer impart pH sensitivity by allowing deshielding of the core in acidic solution. Therefore, the transfection efficiency of polyplexes at pH 6.5 was better than at pH 7.0, from β-galactosidase assay, and for all PAA-b-PSBMA tested. These results were supported by more favorable physicochemical properties in acidic solution (zeta potential, particle size, and interactions between the polymer and DNA). Thus, the results of this study offer a potential route to the development of efficient and nontoxic pH-sensitive gene carriers.
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Affiliation(s)
- Yuju Shih
- R&D Center for Membrane Technology and Department of Chemical Engineering, Chung Yuan Christian University , Chung-Li, Taoyuan 320, Taiwan
| | - Antoine Venault
- R&D Center for Membrane Technology and Department of Chemical Engineering, Chung Yuan Christian University , Chung-Li, Taoyuan 320, Taiwan
| | - Lemmuel L Tayo
- R&D Center for Membrane Technology and Department of Chemical Engineering, Chung Yuan Christian University , Chung-Li, Taoyuan 320, Taiwan
- School of Chemical Engineering and Chemistry, Mapúa Institute of Technology , Intramuros, Manila 1002, Philippines
| | - Sheng-Han Chen
- R&D Center for Membrane Technology and Department of Chemical Engineering, Chung Yuan Christian University , Chung-Li, Taoyuan 320, Taiwan
| | - Akon Higuchi
- Department of Chemical and Materials Engineering, National Central University , Jhong-Li, Taoyuan 320, Taiwan
- Department of Botany and Microbiology, College of Science, King Saud University , P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Andre Deratani
- IEM (Institut Europeen des Membranes), UMR 5635 (CNRS-ENSCM-UM2), Universite Montpellier 2, Place E. Bataillon, F-34095, Montpellier, France
| | - Arunachalam Chinnathambi
- Department of Botany and Microbiology, College of Science, King Saud University , P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Sulaiman Ali Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University , P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Damien Quemener
- IEM (Institut Europeen des Membranes), UMR 5635 (CNRS-ENSCM-UM2), Universite Montpellier 2, Place E. Bataillon, F-34095, Montpellier, France
| | - Yung Chang
- R&D Center for Membrane Technology and Department of Chemical Engineering, Chung Yuan Christian University , Chung-Li, Taoyuan 320, Taiwan
- Department of Botany and Microbiology, College of Science, King Saud University , P.O. Box 2455, Riyadh 11451, Saudi Arabia
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Fernandez-Villamarin M, Sousa-Herves A, Porto S, Guldris N, Martínez-Costas J, Riguera R, Fernandez-Megia E. A dendrimer–hydrophobic interaction synergy improves the stability of polyion complex micelles. Polym Chem 2017. [DOI: 10.1039/c7py00304h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Leiro V, Garcia JP, Moreno PMD, Spencer AP, Fernandez-Villamarin M, Riguera R, Fernandez-Megia E, Paula Pêgo A. Biodegradable PEG–dendritic block copolymers: synthesis and biofunctionality assessment as vectors of siRNA. J Mater Chem B 2017; 5:4901-4917. [DOI: 10.1039/c7tb00279c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
New hybrid-biodegradable PEG–dendritic block copolymers as versatile delivery vectors for biomedical applications. Here, their biofunctionality as siRNA vectors is presented.
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Affiliation(s)
- Victoria Leiro
- i3S – Instituto de Investigação e Inovação em Saúde
- Universidade do Porto
- 4200-135 Porto
- Portugal
- INEB – Instituto de Engenharia Biomédica
| | - João Pedro Garcia
- i3S – Instituto de Investigação e Inovação em Saúde
- Universidade do Porto
- 4200-135 Porto
- Portugal
- INEB – Instituto de Engenharia Biomédica
| | - Pedro M. D. Moreno
- i3S – Instituto de Investigação e Inovação em Saúde
- Universidade do Porto
- 4200-135 Porto
- Portugal
- INEB – Instituto de Engenharia Biomédica
| | - Ana Patrícia Spencer
- i3S – Instituto de Investigação e Inovação em Saúde
- Universidade do Porto
- 4200-135 Porto
- Portugal
- INEB – Instituto de Engenharia Biomédica
| | - Marcos Fernandez-Villamarin
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Ricardo Riguera
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Eduardo Fernandez-Megia
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Ana Paula Pêgo
- i3S – Instituto de Investigação e Inovação em Saúde
- Universidade do Porto
- 4200-135 Porto
- Portugal
- INEB – Instituto de Engenharia Biomédica
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Leire E, Amaral SP, Louzao I, Winzer K, Alexander C, Fernandez-Megia E, Fernandez-Trillo F. Dendrimer mediated clustering of bacteria: improved aggregation and evaluation of bacterial response and viability. Biomater Sci 2016; 4:998-1006. [PMID: 27127812 DOI: 10.1039/c6bm00079g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Here, we evaluate how cationic gallic acid-triethylene glycol (GATG) dendrimers interact with bacteria and their potential to develop new antimicrobials. We demonstrate that GATG dendrimers functionalised with primary amines in their periphery can induce the formation of clusters in Vibrio harveyi, an opportunistic marine pathogen, in a generation dependent manner. Moreover, these cationic GATG dendrimers demonstrate an improved ability to induce cluster formation when compared to poly(N-[3-(dimethylamino)propyl]methacrylamide) [p(DMAPMAm)], a cationic linear polymer previously shown to cluster bacteria. Viability of the bacteria within the formed clusters and evaluation of quorum sensing controlled phenotypes (i.e. light production in V. harveyi) suggest that GATG dendrimers may be activating microbial responses by maintaining a high concentration of quorum sensing signals inside the clusters while increasing permeability of the microbial outer membranes. Thus, the reported GATG dendrimers constitute a valuable platform for the development of novel antimicrobial materials that can target microbial viability and/or virulence.
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Affiliation(s)
- Emma Leire
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain.
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Jiang X, Wu J, Zhang L, Cheng Z, Zhu X. A Facile Strategy for Catalyst Separation and Recycling Suitable for ATRP of Hydrophilic Monomers Using a Macroligand. Macromol Rapid Commun 2015; 37:143-8. [DOI: 10.1002/marc.201500439] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 09/03/2015] [Indexed: 12/23/2022]
Affiliation(s)
- Xiaowu Jiang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis 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
| | - Jian Wu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis 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
| | - Lifen Zhang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis 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
| | - Zhenping Cheng
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis 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
| | - Xiulin Zhu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis 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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8
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Mendrek B, Sieroń Ł, Żymełka-Miara I, Binkiewicz P, Libera M, Smet M, Trzebicka B, Sieroń AL, Kowalczuk A, Dworak A. Nonviral Plasmid DNA Carriers Based on N,N'-Dimethylaminoethyl Methacrylate and Di(ethylene glycol) Methyl Ether Methacrylate Star Copolymers. Biomacromolecules 2015; 16:3275-85. [PMID: 26375579 DOI: 10.1021/acs.biomac.5b00948] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Star polymers with random and block copolymer arms made of cationic N,N'-dimethylaminoethyl methacrylate (DMAEMA) and nonionic di(ethylene glycol) methyl ether methacrylate (DEGMA) were synthesized via atom transfer radical polymerization (ATRP) and used for the delivery of plasmid DNA in gene therapy. All stars were able to form polyplexes with plasmid DNA. The structure and size of the polyplexes were precisely determined using light scattering and cryo-TEM microscopy. The hydrodynamic radius of a complex of DNA with star was dependent on the architecture of the star arms, the DEGMA content and the number of amino groups in the star compared to the number of phosphate groups of the nucleic acid (N/P ratio). The smallest polyplexes (Rh90°∼50 nm) with positive zeta potentials (∼15 mV) were formed of stars with N/P=6. The introduction of DEGMA into the star structure caused a decrease of polyplex cytotoxicity in comparison to DMAEMA homopolymer stars. The overall transfection efficiency using HT-1080 cells showed that the studied systems are prospective gene delivery agents. The most promising results were obtained for stars with random copolymer arms of high DEGMA content.
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Affiliation(s)
- Barbara Mendrek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences , M. Curie-Sklodowskiej 34, 41-819 Zabrze, Poland
| | - Łukasz Sieroń
- Department of General, Molecular Biology and Genetics, Medical University of Silesia , Medykow 18, 40-752 Katowice, Poland
| | - Iwona Żymełka-Miara
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences , M. Curie-Sklodowskiej 34, 41-819 Zabrze, Poland
| | - Paulina Binkiewicz
- University of Occupational Safety Management in Katowice , ul. Bankowa 8, 40-007 Katowice, Poland
| | - Marcin Libera
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences , M. Curie-Sklodowskiej 34, 41-819 Zabrze, Poland
| | - Mario Smet
- Department of Chemistry, University of Leuven , Celestijnenlaan, 200F, B-3001 Leuven (Heverlee), Belgium
| | - Barbara Trzebicka
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences , M. Curie-Sklodowskiej 34, 41-819 Zabrze, Poland
| | - Aleksander L Sieroń
- Department of General, Molecular Biology and Genetics, Medical University of Silesia , Medykow 18, 40-752 Katowice, Poland
| | - Agnieszka Kowalczuk
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences , M. Curie-Sklodowskiej 34, 41-819 Zabrze, Poland
| | - Andrzej Dworak
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences , M. Curie-Sklodowskiej 34, 41-819 Zabrze, Poland
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9
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Hu J, Wang X, Qian Y, Yu Y, Jiang Y, Zhang G, Liu S. Cytoplasmic Reactive Cationic Amphiphiles for Efficient Intracellular Delivery and Self-Reporting Smart Release. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01110] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Jinming Hu
- CAS
Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory
for Physical Sciences at the Microscale, iChem (Collaborative Innovation
Center of Chemistry for Energy Materials), Department of Polymer Science
and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Xiao Wang
- Department
of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Yinfeng Qian
- Department
of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Yongqiang Yu
- Department
of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Yanyan Jiang
- CAS
Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory
for Physical Sciences at the Microscale, iChem (Collaborative Innovation
Center of Chemistry for Energy Materials), Department of Polymer Science
and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Guoying Zhang
- CAS
Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory
for Physical Sciences at the Microscale, iChem (Collaborative Innovation
Center of Chemistry for Energy Materials), Department of Polymer Science
and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Shiyong Liu
- CAS
Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory
for Physical Sciences at the Microscale, iChem (Collaborative Innovation
Center of Chemistry for Energy Materials), Department of Polymer Science
and Engineering, University of Science and Technology of China, Hefei 230026, China
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Leiro V, Garcia JP, Tomás H, Pêgo AP. The Present and the Future of Degradable Dendrimers and Derivatives in Theranostics. Bioconjug Chem 2015; 26:1182-97. [PMID: 25826129 DOI: 10.1021/bc5006224] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Interest in dendrimer-based nanomedicines has been growing recently, as it is possible to precisely manipulate the molecular weight, chemical composition, and surface functionality of dendrimers, tuning their properties according to the desired biomedical application. However, one important concern about dendrimer-based therapeutics remains-the nondegradability under physiological conditions of the most commonly used dendrimers. Therefore, biodegradable dendrimers represent an attractive class of nanomaterials, since they present advantages over conventional nondegradable dendrimers regarding the release of the loaded molecules and the prevention of bioaccumulation of synthetic materials and subsequent cytotoxicity. Here, we present an overview of the state-of-the-art of the design of biodegradable dendritic structures, with particular focus on the hurdles regarding the use of these as vectors of drugs and nucleic acids, as well as macromolecular contrast agents.
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Affiliation(s)
| | | | - Helena Tomás
- ⊥CQM - Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus Universitário da Penteada, 9000-390 Funchal, Portugal
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11
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Sousa-Herves A, Sánchez Espinel C, Fahmi A, González-Fernández Á, Fernandez-Megia E. In situ nanofabrication of hybrid PEG-dendritic-inorganic nanoparticles and preliminary evaluation of their biocompatibility. NANOSCALE 2015; 7:3933-3940. [PMID: 25530028 DOI: 10.1039/c4nr06155a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
An in situ template fabrication of inorganic nanoparticles using carboxylated PEG-dendritic block copolymers of the GATG family is described as a function of the dendritic block generation, the metal (Au, CdSe) and metal molar ratio. The biocompatibility of the generated nanoparticles analysed in terms of their aggregation in physiological media, cytotoxicity and uptake by macrophages relates to the PEG density of the surface of the hybrids.
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Affiliation(s)
- Ana Sousa-Herves
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782, Santiago de Compostela, Spain.
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12
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Sousa-Herves A, Novoa-Carballal R, Riguera R, Fernandez-Megia E. GATG dendrimers and PEGylated block copolymers: from synthesis to bioapplications. AAPS JOURNAL 2014; 16:948-61. [PMID: 25004824 DOI: 10.1208/s12248-014-9642-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 06/20/2014] [Indexed: 12/18/2022]
Abstract
Dendrimers are synthetic macromolecules composed of repetitive layers of branching units that emerge from a central core. They are characterized by a tunable size and precise number of peripheral groups which determine their physicochemical properties and function. Their high multivalency, functional surface, and globular architecture with diameters in the nanometer scale makes them ideal candidates for a wide range of applications. Gallic acid-triethylene glycol (GATG) dendrimers have attracted our attention as a promising platform in the biomedical field because of their high tunability and versatility. The presence of terminal azides in GATG dendrimers and poly(ethylene glycol) (PEG)-dendritic block copolymers allows their efficient functionalization with a variety of ligands of biomedical relevance including anionic and cationic groups, carbohydrates, peptides, or imaging agents. The resulting functionalized dendrimers have found application in drug and gene delivery, as antiviral agents and for the treatment of neurodegenerative diseases, in diagnosis and as tools to study multivalent carbohydrate recognition and dendrimer dynamics. Herein, we present an account on the preparation and recent applications of GATG dendrimers in these fields.
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Affiliation(s)
- Ana Sousa-Herves
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782, Santiago de Compostela, Spain
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13
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Blasco E, Piñol M, Oriol L. Responsive linear-dendritic block copolymers. Macromol Rapid Commun 2014; 35:1090-115. [PMID: 24706548 DOI: 10.1002/marc.201400007] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Revised: 03/05/2014] [Indexed: 11/08/2022]
Abstract
The combination of dendritic and linear polymeric structures in the same macromolecule opens up new possibilities for the design of block copolymers and for applications of functional polymers that have self-assembly properties. There are three main strategies for the synthesis of linear-dendritic block copolymers (LDBCs) and, in particular, the emergence of click chemistry has made the coupling of preformed blocks one of the most efficient ways of obtaining libraries of LDBCs. In these materials, the periphery of the dendron can be precisely functionalised to obtain functional LDBCs with self-assembly properties of interest in different technological areas. The incorporation of stimuli-responsive moieties gives rise to smart materials that are generally processed as self-assemblies of amphiphilic LDBCs with a morphology that can be controlled by an external stimulus. Particular emphasis is placed on light-responsive LDBCs. Furthermore, a brief review of the biomedical or materials science applications of LDBCs is presented.
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Affiliation(s)
- Eva Blasco
- Dpt. Química Orgánica, Facultad de Ciencias - Instituto de Ciencia de Materiales de Aragón (ICMA), Universidad de Zaragoza-CSIC, Pedro Cerbuna 12, 50009, Zaragoza, Spain
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14
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Ennen F, Boye S, Lederer A, Cernescu M, Komber H, Brutschy B, Voit B, Appelhans D. Biohybrid structures consisting of biotinylated glycodendrimers and proteins: influence of the biotin ligand's number and chemical nature on the biotin–avidin conjugation. Polym Chem 2014. [DOI: 10.1039/c3py01152f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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15
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Sizovs A, Song X, Waxham MN, Jia Y, Feng F, Chen J, Wicker AC, Xu J, Yu Y, Wang J. Precisely tunable engineering of sub-30 nm monodisperse oligonucleotide nanoparticles. J Am Chem Soc 2013; 136:234-40. [PMID: 24344996 DOI: 10.1021/ja408879b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Advancement of RNAi therapies is mainly hindered by the development of efficient delivery vehicles. The ability to create small size (<30 nm) oligonucleotide nanoparticles is essential for many aspects of the delivery process but is often overlooked. In this report, we describe diblock star polymers that can reproducibly complex double-stranded oligonucleotides into monodisperse nanoparticles with 15, 23, or 30 nm in diameter. The polymer-nucleic acid nanoparticles have a core-shell architecture with dense PEG brush coating. We characterized these nanoparticles using ITC, DLS, FRET, FCS, TIRF, and TEM. In addition to small size, these nanoparticles have neutral zeta-potentials, making the presented polymer architecture a very attractive platform for investigation of yet poorly studied polyplex size range for siRNA and antisense oligonucleotide delivery applications.
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Affiliation(s)
- Antons Sizovs
- Department of Pharmacology, ‡Department of Molecular and Cellular Biology, §Center for Drug Discovery, Dan L. Duncan Cancer Center, and Cardiovascular Research Institute, Baylor College of Medicine , Houston, Texas 77030, United States
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16
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Munoz EM, Correa J, Riguera R, Fernandez-Megia E. Real-Time Evaluation of Binding Mechanisms in Multivalent Interactions: A Surface Plasmon Resonance Kinetic Approach. J Am Chem Soc 2013; 135:5966-9. [DOI: 10.1021/ja400951g] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Eva Maria Munoz
- Department of Organic
Chemistry and Center for Research
in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la
Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Juan Correa
- Department of Organic
Chemistry and Center for Research
in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la
Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Ricardo Riguera
- Department of Organic
Chemistry and Center for Research
in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la
Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Eduardo Fernandez-Megia
- Department of Organic
Chemistry and Center for Research
in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la
Fuente s/n, 15782 Santiago de Compostela, Spain
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17
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de la Fuente M, Raviña M, Sousa-Herves A, Correa J, Riguera R, Fernandez-Megia E, Sánchez A, Alonso MJ. Exploring the efficiency of gallic acid-based dendrimers and their block copolymers with PEG as gene carriers. Nanomedicine (Lond) 2012; 7:1667-81. [DOI: 10.2217/nnm.12.51] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The synthesis of a new family of amino-functionalized gallic acid-triethylene glycol (GATG) dendrimers and their block copolymers with polyethylene glycol (PEG) has recently being disclosed. In addition, these dendrimers have shown potential for gene delivery applications, as they efficiently complex nucleic acids and form small and homogeneous dendriplexes. On this basis, the present study aimed to explore the interaction of the engineered dendriplexes with blood components, as well as their stability, cytotoxicity and ability to enter and transfect mammalian cells. Results show that GATG dendrimers can form stable dendriplexes, protect the associated pDNA from degradation, and are biocompatible with HEK-293T cells and erythrocytes. More importantly, dendriplexes are effectively internalized by HEK-293T cells, which are successfully transfected. Besides, PEGylation has a marked influence on the properties of the resulting dendriplexes. While PEGylated GATG dendrimers have improved biocompatibility, the long PEG chains limit their uptake by HEK-293T cells, and thus, their ability to transfect them. As a consequence, the degree of PEGylation in dendriplexes containing dendrimer/block copolymer mixtures emerges as an important parameter to be modulated in order to obtain an optimized stealth formulation able to effectively induce the expression of the encoded protein. Original submitted 29 November 2011; Revised submitted 8 March 2012; Published online 20 July 2012
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Affiliation(s)
- María de la Fuente
- Department of Pharmacy & Pharmaceutical Technology, Center for Molecular Medicine & Chronic Diseases, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Manuela Raviña
- Department of Pharmacy & Pharmaceutical Technology, School of Pharmacy, University of Santiago de Compostela, Spain
| | - Ana Sousa-Herves
- Department of Organic Chemistry, Center for Research in Biological Chemistry & Molecular Materials (CIQUS), University of Santiago de Compostela, Spain
| | - Juan Correa
- Department of Organic Chemistry, Center for Research in Biological Chemistry & Molecular Materials (CIQUS), University of Santiago de Compostela, Spain
| | - Ricardo Riguera
- Department of Organic Chemistry, Center for Research in Biological Chemistry & Molecular Materials (CIQUS), University of Santiago de Compostela, Spain
| | - Eduardo Fernandez-Megia
- Department of Organic Chemistry, Center for Research in Biological Chemistry & Molecular Materials (CIQUS), University of Santiago de Compostela, Spain
| | - Alejandro Sánchez
- Department of Pharmacy & Pharmaceutical Technology, School of Pharmacy, University of Santiago de Compostela, Spain
- Molecular Image Group, Instituto de Investigacion Sanitaria – Clinical Research Institute – of Santiago de Compostela (IDIS), Spain
| | - María José Alonso
- Department of Pharmacy & Pharmaceutical Technology, Center for Molecular Medicine & Chronic Diseases, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
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18
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Dendrimers reduce toxicity of Aβ 1-28 peptide during aggregation and accelerate fibril formation. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2012; 8:1372-8. [DOI: 10.1016/j.nano.2012.03.005] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2011] [Revised: 03/12/2012] [Accepted: 03/14/2012] [Indexed: 12/20/2022]
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19
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Albertazzi L, Fernandez-Villamarin M, Riguera R, Fernandez-Megia E. Peripheral functionalization of dendrimers regulates internalization and intracellular trafficking in living cells. Bioconjug Chem 2012; 23:1059-68. [PMID: 22482890 DOI: 10.1021/bc300079h] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
GATG (gallic acid-triethylene glycol) dendrimers represent appealing nanostructures for biomedical applications. The incorporation of specific ligands and targeting and imaging agents on their surface has resulted in promising tools in diagnosis and drug delivery. With the aim to further explore the versatility of GATG dendrimers in the biomedical field, in this work we study the effect of peripheral substitution on their uptake and intracellular trafficking in living cells. To this end, peripheral groups with different physicochemical properties and biological relevance have been installed on the surface of GATG dendrimers, and their interactions, uptake efficacy, and specificity for certain cell populations studied by confocal microscopy. Finally, this information was used to design a pH-sensitive drug delivery system for the selective release of cargo molecules inside cells after lysosomal localization. These results along with the easy functionalization and modular architecture of GATG dendrimers reveal these systems as promising nanotools in biomedicine.
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Affiliation(s)
- Lorenzo Albertazzi
- NEST , Scuola Normale Superiore and Istituto Nanoscienze-CNR, I-56127 Pisa, Italy
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20
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Niko Y, Konishi GI. Polymer-Chain-Induced Tunable Luminescence Properties: Amphiphilic Poly(2-oxazoline)s Possessing a N,N-Dialkylpyrene-1-carboxamide Chromophore in the Side Chain. Macromolecules 2012. [DOI: 10.1021/ma3001252] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yosuke Niko
- Department of Organic
and Polymeric
Materials, Tokyo Institute of Technology, O-okayama, Tokyo 152-8552, Japan
| | - Gen-ichi Konishi
- Department of Organic
and Polymeric
Materials, Tokyo Institute of Technology, O-okayama, Tokyo 152-8552, Japan
- PRESTO, Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012,
Japan
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21
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Sousa-Herves A, Riguera R, Fernandez-Megia E. PEG-dendritic block copolymers for biomedical applications. NEW J CHEM 2012. [DOI: 10.1039/c2nj20849k] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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22
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Amaral SP, Fernandez-Villamarin M, Correa J, Riguera R, Fernandez-Megia E. Efficient Multigram Synthesis of the Repeating Unit of Gallic Acid-Triethylene Glycol Dendrimers. Org Lett 2011; 13:4522-5. [DOI: 10.1021/ol201677k] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sandra P. Amaral
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Marcos Fernandez-Villamarin
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Juan Correa
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Ricardo Riguera
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Eduardo Fernandez-Megia
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
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