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Li Z, Duan S, Liu B. Freezing Functional Nucleic Acids: From Molecular Reactions to Surface Immobilization. Chembiochem 2024:e202400416. [PMID: 38979890 DOI: 10.1002/cbic.202400416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 07/08/2024] [Accepted: 07/08/2024] [Indexed: 07/10/2024]
Abstract
Biochemical reactions are typically slowed down by decreasing temperature. However, accelerated reaction kinetics have been observed for a long time. More recent examples have highlighted the unique role of freezing in fabricating supermaterials, degrading environmental contaminants, and accelerating bioreactions. Functional nucleic acids are DNA or RNA oligonucleotides with versatile properties, including target recognition, catalysis, and molecular co4mputing. In this review, we discuss the current observations and understanding of freezing-facilitated reactions involving functional nucleic acids. Molecular reactions such as ligation/conjugation, cleavage, and hybridization are discussed. Moreover, freezing-induced DNA-nanoparticle conjugations are introduced. Then, we describe our effect in immobilizing DNA on bulk surfaces. Finally, we address some critical questions and research opportunities in the field.
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Affiliation(s)
- Zhenglian Li
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Siyi Duan
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Biwu Liu
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
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2
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Shen X, Dirisala A, Toyoda M, Xiao Y, Guo H, Honda Y, Nomoto T, Takemoto H, Miura Y, Nishiyama N. pH-responsive polyzwitterion covered nanocarriers for DNA delivery. J Control Release 2023; 360:928-939. [PMID: 37495117 DOI: 10.1016/j.jconrel.2023.07.038] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 07/21/2023] [Accepted: 07/22/2023] [Indexed: 07/28/2023]
Abstract
The success of gene therapy relies on gene nanocarriers to achieve therapeutic effects in vivo. Surface shielding of poly(ethylene glycol) (PEG), known as PEGylation, onto gene delivery carriers is a predominant strategy for extending blood circulation and improving therapeutic outcomes in vivo. Nevertheless, PEGylation frequently compromises the transfection efficiency by decreasing the interactions with the cellular membrane of the targeted cells, thereby preventing the cellular uptake and the subsequent endosomal escape. Herein, we developed a stepwise pH-responsive polyplex micelle for the plasmid DNA delivery with the surface covered by ethylenediamine-based polycarboxybetaines. This polyplex micelle switched its surface charge from neutral at pH 7.4 to positive at tumorous and endo-/lysosomal pH (i.e., pH 6.5 and 5.5, respectively), thus enhancing the cellular uptake and facilitating the endosomal escape toward efficient gene transfection. Additionally, the polyplex micelle demonstrated prolonged blood circulation as well as enhanced tumor accumulation, leading to highly effective tumor growth suppression by delivering an antiangiogenic gene. These results suggest the usefulness of a pH-responsive charge-switchable shell polymer on the surface of the polyplex micelle for the efficient nucleic acid delivery.
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Affiliation(s)
- Xin Shen
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Anjaneyulu Dirisala
- Innovation Center of Nanomedicine (iCONM), Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821, Japan
| | - Masahiro Toyoda
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Yao Xiao
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Haochen Guo
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Yuto Honda
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Innovation Center of Nanomedicine (iCONM), Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821, Japan
| | - Takahiro Nomoto
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Hiroyasu Takemoto
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Medical Chemistry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 1-5 Shimogamohangi-cho, Sakyo-ku, Kyoto 606-0823, Japan
| | - Yutaka Miura
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan.
| | - Nobuhiro Nishiyama
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan; Innovation Center of Nanomedicine (iCONM), Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821, Japan.
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3
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Verjans J, Sedlačík T, Jerca VV, Bernhard Y, Van Guyse JFR, Hoogenboom R. Poly( N-allyl acrylamide) as a Reactive Platform toward Functional Hydrogels. ACS Macro Lett 2023; 12:79-85. [PMID: 36595222 DOI: 10.1021/acsmacrolett.2c00650] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The synthesis of poly(N-allyl acrylamide) (PNAllAm) as a platform for the preparation of functional hydrogels is described. The PNAllAm was synthesized via organocatalyzed amidation of poly(methyl acrylate) (PMA) with allylamine and characterized by 1H NMR spectroscopy, size exclusion chromatography (SEC), and turbidimetry, which allowed an estimation of the lower critical solution temperature of ∼26 °C in water. The PNAllAm was then used to make functional hydrogels via photoinitiated thiol-ene chemistry, where dithiothreitol (DTT) was used to cross-link the polymer chains. In addition, mercaptoethanol (ME) was added as a functional thiol to modulate the hydrogel properties. A decrease of the volume-phase transition temperature of the resulting hydrogels was observed with increasing ME content. Altogether this work introduces a straightforward way for the preparation of PNAllAm from PMA and demonstrates its value as a reactive polymer platform for the generation of functional hydrogels.
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Affiliation(s)
- Jente Verjans
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, B-9000 Ghent, Belgium
| | - Tomáš Sedlačík
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, B-9000 Ghent, Belgium
| | - Valentin Victor Jerca
- Smart Organic Materials Group, "Costin D. Nenitzescu" Institute of Organic and Supramolecular Chemistry, Romanian Academy, Spl. Independentei 202B, 060023 Bucharest, Romania
| | - Yann Bernhard
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, B-9000 Ghent, Belgium
| | - Joachim F R Van Guyse
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, B-9000 Ghent, Belgium
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, B-9000 Ghent, Belgium
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4
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Honda Y, Onodera S, Takemoto H, Harun NFC, Nomoto T, Matsui M, Tomoda K, Sun Y, Miura Y, Nishiyama N. Thermo-Responsive Polymer-siRNA Conjugates Enabling Artificial Control of Gene Silencing around Body Temperature. Pharm Res 2023; 40:157-165. [PMID: 36307662 DOI: 10.1007/s11095-022-03414-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 10/10/2022] [Indexed: 11/26/2022]
Abstract
PURPOSE Controlling small interfering RNA (siRNA) activity by external stimuli is useful to exert a selective therapeutic effect at the target site. This study aims to develop a technology to control siRNA activity in a thermo-responsive manner, which can be utilized even at temperatures close to body temperature. METHODS siRNA was conjugated with a thermo-responsive copolymer that was synthesized by copolymerization of N-isopropylacrylamide (NIPAAm) and hydrophilic N,N-dimethylacrylamide (DMAA) to permit thermally controlled interaction between siRNA and an intracellular gene silencing-related protein by utilizing the coil-to-globule phase transition of the copolymer. The composition of the copolymer was fine-tuned to obtain lower critical solution temperature (LCST) around body temperature, and the phase transition behavior was evaluated. The cellular uptake and gene silencing efficiency of the copolymer-siRNA conjugates were then investigated in cultured cells. RESULTS The siRNA conjugated with the copolymer with LCST of 38.0°C exhibited ~ 11.5 nm of the hydrodynamic diameter at 37°C and ~ 9.8 nm of the diameter at 41°C, indicating the coil-globule transition above the LCST. In line with this LCST behavior, its cellular uptake and gene silencing efficiency were enhanced when the temperature was increased from 37°C to 41°C. CONCLUSION By fine-tuning the LCST behavior of the copolymer that was conjugated with siRNA, siRNA activity could be controlled in a thermo-responsive manner around the body temperature. This technique may offer a promising approach to induce therapeutic effects of siRNA selectively in the target site even in the in vivo conditions.
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Affiliation(s)
- Yuto Honda
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan
- Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan
- Innovation Center of Nanomedicine (iCONM), Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-0821, Japan
| | - Sayaka Onodera
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan
- Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan
| | - Hiroyasu Takemoto
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan
- Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan
| | - Noor Faizah Che Harun
- Universiti Kuala Lumpur - Branch Campus Malaysian Institute of Chemical and Bioengineering Technology, Lot 1988, Vendor City, Taboh Naning, 78000, Alor Gajah, Melaka, Malaysia
| | - Takahiro Nomoto
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan
- Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan
| | - Makoto Matsui
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan
| | - Keishiro Tomoda
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan
| | - Yudi Sun
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan
- Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan
| | - Yutaka Miura
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan
- Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan
| | - Nobuhiro Nishiyama
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan.
- Department of Life Science and Technology, School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan.
- Innovation Center of Nanomedicine (iCONM), Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, 210-0821, Japan.
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5
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Matsumura K, Rajan R, Ahmed S. Bridging polymer chemistry and cryobiology. Polym J 2022. [DOI: 10.1038/s41428-022-00735-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
AbstractPolymers, especially charged polymers, are the key to a sustainable future, as they have the capability to act as alternatives to plastics, reduce the impact of global warming, and offer solutions to global environmental pollution problems. Biomaterial polymers have proven to be incredibly effective in a multitude of applications, including clinical applications. In the fields of cryobiology and cryopreservation, polymers have emerged as credible alternatives to small molecules and other compounds, yielding excellent results. This review outlines the results of research in the areas of polymer chemistry and cryobiology, which have not been discussed together previously. Herein, we explain how recent polymer research has enabled the development of polymeric cryoprotectants with novel mechanisms and the development of novel methods for the intracellular delivery of substances, such as drugs, using a cryobiological technique called the freeze-concentration effect. Our findings indicate that interdisciplinary collaboration between cryobiologists and polymer chemists has led to exciting developments that will further cell biology and medical research.
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Li Y, Zandieh M, Liu J. Modulation of DNAzyme Activity via Butanol Dehydration. Chem Asian J 2021; 16:4062-4066. [PMID: 34665937 DOI: 10.1002/asia.202101091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 10/18/2021] [Indexed: 11/07/2022]
Abstract
Understanding the activity of biomolecules in cosolvent systems is important for catalysis, separation and developing biosensors. The majority of previously studied solvents are either phase separated with water or miscible with water. Butanol was recently used to extract water for the conjugation of DNA to gold nanoparticles. In this work, the effect of butanol on the activity of a few RNA-cleaving DNAzymes was studied. A 130-fold improvement in sensitivity for the Na+ -specific EtNa DNAzyme was observed, and butanol also improved the activity of another Na+ -specific DNAzyme, NaA43T by a few folds. However, when divalent metal ions were used for both EtNa and 17E DNAzymes, the activity was inhibited. A main driven force for enhanced DNAzyme activity is the concentration effect due to butanol dehydration. This study provides insights into the interplay between DNA, metal ions and organic solvents, and such an understanding might be useful for developing sensitive biosensors.
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Affiliation(s)
- Yuqing Li
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Mohamad Zandieh
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
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7
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Hironaka K, Yoshihara E, Nabil A, Lai JJ, Kikuchi A, Ebara M. Conjugation of antibody with temperature-responsive polymer via in situ click reaction to enable biomarker enrichment for increased diagnostic sensitivity. Biomater Sci 2021; 9:4870-4879. [PMID: 33904566 DOI: 10.1039/d1bm00349f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Early diagnosis of infectious diseases is one of the current prevalent challenges, especially in low and limited resource settings where simple, fast, portable, cheap, and sensitive diagnostic approaches are needed. Lateral flow immunoassay (LFIA) is a common, rapid screening assay. However, the low assay sensitivity limits the utility of LFIA for specimens with low pathogenic loads (early infection stages). Antibodies conjugated with stimulus-responsive polymers have been previously utilized to improve assay sensitivity for detection of biomarkers at low concentrations. However, the loss of antibody affinity after polymer conjugation remains a significant challenge. In this study, we developed poly(N-isopropylacrylamide-co-N-(2-hydroxyisopropyl)acrylamide-co-strained alkyne-isopropylacrylamide), a novel polymer for biomarker enrichment, by polymer conjugation after antibody-antigen recognition. We employed and promoted the click chemistry in situ, to facilitate highly specific conjugation between novel temperature-responsive polymers and antibody-antigen complexes. This method could suppress the decrease in the binding constant associated with polymer conjugation (>20-fold). The conjugation was successfully demonstrated in body fluids such as urine and saliva. We achieved >5-fold antigen enrichment via thermal precipitation by conjugating polymers to the antibodies after antigen recognition. Concentrated biomarkers resulted in improved LFIA detection. This approach can potentially be utilized to improve diagnostic tests for infectious diseases in low and limited resource settings.
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Affiliation(s)
- Keita Hironaka
- Research Center for Functional Materials (RCFM), National Institute for Materials Science (NIMS), 1-1Namiki, Tsukuba, Ibaraki 305-0044, Japan. and Department of Materials Science and Technology, Graduate School of Industrial Science and Technology, Tokyo University of Science, 6-3-1 Niijuku, Katsushika, Tokyo 125-8585, Japan
| | - Erika Yoshihara
- Research Center for Functional Materials (RCFM), National Institute for Materials Science (NIMS), 1-1Namiki, Tsukuba, Ibaraki 305-0044, Japan. and Graduate School of Pure and Applied Sciences, University of Tsukuba, Ten-nodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Ahmed Nabil
- Research Center for Functional Materials (RCFM), National Institute for Materials Science (NIMS), 1-1Namiki, Tsukuba, Ibaraki 305-0044, Japan. and Biotechnology and Life Sciences Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Beni-Suef, Egypt and Egyptian Liver Research Institute and Hospital (ELRIAH), Sherbin, El Mansoura, Egypt
| | - James J Lai
- Department of Bioengineering, University of Washington, USA
| | - Akihiko Kikuchi
- Department of Materials Science and Technology, Graduate School of Industrial Science and Technology, Tokyo University of Science, 6-3-1 Niijuku, Katsushika, Tokyo 125-8585, Japan
| | - Mitsuhiro Ebara
- Research Center for Functional Materials (RCFM), National Institute for Materials Science (NIMS), 1-1Namiki, Tsukuba, Ibaraki 305-0044, Japan. and Department of Materials Science and Technology, Graduate School of Industrial Science and Technology, Tokyo University of Science, 6-3-1 Niijuku, Katsushika, Tokyo 125-8585, Japan and Graduate School of Pure and Applied Sciences, University of Tsukuba, Ten-nodai, Tsukuba, Ibaraki 305-8577, Japan and Department of Bioengineering, University of Washington, USA
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8
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Li Y, Gao H, Qi Z, Huang Z, Ma L, Liu J. Freezing-Assisted Conjugation of Unmodified Diblock DNA to Hydrogel Nanoparticles and Monoliths for DNA and Hg 2+ Sensing. Angew Chem Int Ed Engl 2021; 60:12985-12991. [PMID: 33792133 DOI: 10.1002/anie.202102330] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/24/2021] [Indexed: 12/22/2022]
Abstract
Acrydite-modified DNA is the most frequently used reagent to prepare DNA-functionalized hydrogels. Herein, we show that unmodified penta-adenine (A5 ) can reach up to 75 % conjugation efficiency in 8 h under a freezing polymerization condition in polyacrylamide hydrogels. DNA incorporation efficiency was reduced by forming duplex or other folded structures and by removing the freezing condition. By designing diblock DNA containing an A5 block, various functional DNA sequences were attached. Such hydrogels were designed for ultrasensitive DNA hybridization and Hg2+ detection, with detection limits of 50 pM and 10 nM, respectively, demonstrating the feasibility of using unmodified DNA to replace acrydite-DNA. The same method worked for both gel nanoparticles and monoliths. This work revealed interesting reaction products by exploiting freezing and has provided a cost-effective way to attach DNA to hydrogels.
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Affiliation(s)
- Yuqing Li
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
| | - Hang Gao
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
| | - Zengyao Qi
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
| | - Zhicheng Huang
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
| | - Lingzi Ma
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada.,Centre for Eye and Vision Research, 17W Hong Kong Science Park, Hong Kong, Hong Kong
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9
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Li Y, Gao H, Qi Z, Huang Z, Ma L, Liu J. Freezing‐Assisted Conjugation of Unmodified Diblock DNA to Hydrogel Nanoparticles and Monoliths for DNA and Hg
2+
Sensing. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yuqing Li
- Department of Chemistry Waterloo Institute for Nanotechnology University of Waterloo 200 University Avenue West Waterloo Ontario N2L 3G1 Canada
| | - Hang Gao
- Department of Chemistry Waterloo Institute for Nanotechnology University of Waterloo 200 University Avenue West Waterloo Ontario N2L 3G1 Canada
| | - Zengyao Qi
- Department of Chemistry Waterloo Institute for Nanotechnology University of Waterloo 200 University Avenue West Waterloo Ontario N2L 3G1 Canada
| | - Zhicheng Huang
- Department of Chemistry Waterloo Institute for Nanotechnology University of Waterloo 200 University Avenue West Waterloo Ontario N2L 3G1 Canada
| | - Lingzi Ma
- Department of Chemistry Waterloo Institute for Nanotechnology University of Waterloo 200 University Avenue West Waterloo Ontario N2L 3G1 Canada
| | - Juewen Liu
- Department of Chemistry Waterloo Institute for Nanotechnology University of Waterloo 200 University Avenue West Waterloo Ontario N2L 3G1 Canada
- Centre for Eye and Vision Research 17W Hong Kong Science Park Hong Kong Hong Kong
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10
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Arnold AE, Smith LJ, Beilhartz GL, Bahlmann LC, Jameson E, Melnyk RA, Shoichet MS. Attenuated diphtheria toxin mediates siRNA delivery. SCIENCE ADVANCES 2020; 6:6/18/eaaz4848. [PMID: 32917630 PMCID: PMC7195190 DOI: 10.1126/sciadv.aaz4848] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 01/21/2020] [Indexed: 05/10/2023]
Abstract
Toxins efficiently deliver cargo to cells by binding to cell surface ligands, initiating endocytosis, and escaping the endolysosomal pathway into the cytoplasm. We took advantage of this delivery pathway by conjugating an attenuated diphtheria toxin to siRNA, thereby achieving gene downregulation in patient-derived glioblastoma cells. We delivered siRNA against integrin-β1 (ITGB1)-a gene that promotes invasion and metastasis-and siRNA against eukaryotic translation initiation factor 3 subunit b (eIF-3b)-a survival gene. We demonstrated mRNA downregulation of both genes and the corresponding functional outcomes: knockdown of ITGB1 led to a significant inhibition of invasion, shown with an innovative 3D hydrogel model; and knockdown of eIF-3b resulted in significant cell death. This is the first example of diphtheria toxin being used to deliver siRNAs, and the first time a toxin-based siRNA delivery strategy has been shown to induce relevant genotypic and phenotypic effects in cancer cells.
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Affiliation(s)
- Amy E Arnold
- Department of Chemistry, University of Toronto, Toronto, ON, Canada
| | - Laura J Smith
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada
| | - Greg L Beilhartz
- Program in Molecular Medicine, The Hospital for Sick Children, Toronto, ON, Canada
| | - Laura C Bahlmann
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada
| | - Emma Jameson
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada
| | - Roman A Melnyk
- Program in Molecular Medicine, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Biochemistry, University of Toronto, Toronto, ON, Canada
| | - Molly S Shoichet
- Department of Chemistry, University of Toronto, Toronto, ON, Canada.
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada
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11
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Iijima K, Harada M, Fukuhara G, Okada T. Frozen Solution-Mediated Asymmetric Synthesis: Control of Enantiomeric Excess. J Org Chem 2020; 85:4525-4529. [PMID: 32069399 DOI: 10.1021/acs.joc.9b03415] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Asymmetric List-Mannich reactions were carried out in the frozen state to afford optically active adducts in moderate-to-good chemical yields and enantiomeric excesses (ee). The frozen solution exerts critical control of ee via entropy changes, in sharp contrast to the enthalpy-driven asymmetric reactions typically observed in homogeneous solvents. This study provides new perspectives for asymmetric syntheses and an attractive alternative to conventional media.
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Affiliation(s)
- Koki Iijima
- Department of Chemistry, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8551, Japan
| | - Makoto Harada
- Department of Chemistry, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8551, Japan
| | - Gaku Fukuhara
- Department of Chemistry, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8551, Japan.,JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Tetsuo Okada
- Department of Chemistry, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8551, Japan
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12
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Lou B, Connor K, Sweeney K, Miller IS, O'Farrell A, Ruiz-Hernandez E, Murray DM, Duffy GP, Wolfe A, Mastrobattista E, Byrne AT, Hennink WE. RGD-decorated cholesterol stabilized polyplexes for targeted siRNA delivery to glioblastoma cells. Drug Deliv Transl Res 2020; 9:679-693. [PMID: 30972664 DOI: 10.1007/s13346-019-00637-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The development of an effective and safe treatment for glioblastoma (GBM) represents a significant challenge in oncology today. Downregulation of key mediators of cell signal transduction by RNA interference is considered a promising treatment strategy but requires efficient, intracellular delivery of siRNA into GBM tumor cells. Here, we describe novel polymeric siRNA nanocarriers functionalized with cRGD peptide that mediates targeted and efficient reporter gene silencing in U87R invasive human GBM cells. The polymer was synthesized via RAFT copolymerization of N-(2-hydroxypropyl)-methacrylamide (HPMA) and N-acryloxysuccinimide (NAS), followed by post-polymerization modification with cholesterol for stabilization, cationic amines for siRNA complexation, and azides for copper-free click chemistry. The novel resultant cationic polymer harboring a terminal cholesterol group, self-assembled with siRNA to yield nanosized polyplexes (~ 40 nm) with good colloidal stability at physiological ionic strength. Post-modification of the preformed polyplexes with PEG-cRGD end-functionalized with bicyclo[6.1.0]nonyne (BCN) group resulted in enhanced cell uptake and increased luciferase gene silencing in U87R cells, compared to polyplexes lacking cRGD-targeting groups.
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Affiliation(s)
- Bo Lou
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG, Utrecht, The Netherlands
| | - Kate Connor
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, York Street, Dublin 2, Ireland
| | - Kieron Sweeney
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, York Street, Dublin 2, Ireland.,Department of Neurosurgery, Beaumont Hospital, Dublin, Ireland
| | - Ian S Miller
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, York Street, Dublin 2, Ireland
| | - Alice O'Farrell
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, York Street, Dublin 2, Ireland
| | | | - David M Murray
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, York Street, Dublin 2, Ireland
| | - Garry P Duffy
- Anatomy, School of Medicine, College of Medicine Nursing and Health Sciences, National University of Ireland, Galway, Ireland
| | - Alan Wolfe
- UCD School of Veterinary Medicine, Belfield, Dublin, Ireland
| | - Enrico Mastrobattista
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG, Utrecht, The Netherlands
| | - Annette T Byrne
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, York Street, Dublin 2, Ireland
| | - Wim E Hennink
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG, Utrecht, The Netherlands.
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13
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Kim BS, Osawa S, Naito M, Ogura S, Kamegawa R, Ishida H, Kim HJ, Uchida S, Miyata K. A 50‐nm‐Sized Micellar Assembly of Thermoresponsive Polymer‐Antisense Oligonucleotide Conjugates for Enhanced Gene Knockdown in Lung Cancer by Intratracheal Administration. ADVANCED THERAPEUTICS 2019. [DOI: 10.1002/adtp.201900123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Beob Soo Kim
- Department of Materials Engineering Graduate School of Engineering The University of Tokyo 7‐3‐1 Hongo, Bunkyo‐ku Tokyo 113‐8656 Japan
| | - Shigehito Osawa
- Department of Applied Chemistry Faculty of Science Tokyo University of Science 1‐3 Kagurazaka, Shinjuku‐ku Tokyo 162‐8601 Japan
| | - Mitsuru Naito
- Center for Disease Biology and Integrative Medicine Graduate School of Medicine The University of Tokyo 7‐3‐1 Hongo, Bunkyo‐ku Tokyo 113‐0033 Japan
| | - Satomi Ogura
- Department of Materials Engineering Graduate School of Engineering The University of Tokyo 7‐3‐1 Hongo, Bunkyo‐ku Tokyo 113‐8656 Japan
| | - Rimpei Kamegawa
- Department of Materials Engineering Graduate School of Engineering The University of Tokyo 7‐3‐1 Hongo, Bunkyo‐ku Tokyo 113‐8656 Japan
| | - Hiroki Ishida
- Department of Materials Engineering Graduate School of Engineering The University of Tokyo 7‐3‐1 Hongo, Bunkyo‐ku Tokyo 113‐8656 Japan
| | - Hyun Jin Kim
- Center for Disease Biology and Integrative Medicine Graduate School of Medicine The University of Tokyo 7‐3‐1 Hongo, Bunkyo‐ku Tokyo 113‐0033 Japan
| | - Satoshi Uchida
- Department of Bioengineering Graduate School of Engineering The University of Tokyo 7‐3‐1 Hongo, Bunkyo‐ku Tokyo 113‐8656 Japan
| | - Kanjiro Miyata
- Department of Materials Engineering Graduate School of Engineering The University of Tokyo 7‐3‐1 Hongo, Bunkyo‐ku Tokyo 113‐8656 Japan
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14
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Kim BS, Kim HJ, Osawa S, Hayashi K, Toh K, Naito M, Min HS, Yi Y, Kwon IC, Kataoka K, Miyata K. Dually Stabilized Triblock Copolymer Micelles with Hydrophilic Shell and Hydrophobic Interlayer for Systemic Antisense Oligonucleotide Delivery to Solid Tumor. ACS Biomater Sci Eng 2019; 5:5770-5780. [DOI: 10.1021/acsbiomaterials.9b00384] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Beob Soo Kim
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | | | - Shigehito Osawa
- Innovation Center of NanoMedicine, Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki 210-0821, Japan
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Kotaro Hayashi
- Innovation Center of NanoMedicine, Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki 210-0821, Japan
| | - Kazuko Toh
- Innovation Center of NanoMedicine, Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki 210-0821, Japan
| | | | - Hyun Su Min
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yu Yi
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Ick Chan Kwon
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - Kazunori Kataoka
- Innovation Center of NanoMedicine, Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki 210-0821, Japan
| | - Kanjiro Miyata
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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15
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Modular core-shell polymeric nanoparticles mimicking viral structures for vaccination. J Control Release 2019; 293:48-62. [DOI: 10.1016/j.jconrel.2018.11.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 10/23/2018] [Accepted: 11/04/2018] [Indexed: 12/14/2022]
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16
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Post-PEGylated and crosslinked polymeric ssRNA nanocomplexes as adjuvants targeting lymph nodes with increased cytolytic T cell inducing properties. J Control Release 2018; 284:73-83. [DOI: 10.1016/j.jconrel.2018.06.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 06/04/2018] [Accepted: 06/05/2018] [Indexed: 01/04/2023]
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17
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Effect of multiple cyclic RGD peptides on tumor accumulation and intratumoral distribution of IRDye 700DX-conjugated polymers. Sci Rep 2018; 8:8126. [PMID: 29802410 PMCID: PMC5970177 DOI: 10.1038/s41598-018-26593-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 05/10/2018] [Indexed: 12/20/2022] Open
Abstract
Strategic delivery of IRDye 700DX (photosensitizer) is a key for improving its effect in photodynamic therapy. In this study, we have synthesized IRDye 700DX-conjugated polymers containing multiple cyclic RGD peptides to deliver IRDye 700DX selectively to tumor cells and tumor-associated blood vessels overexpressing αvβ3 integrin. Our polymer has a backbone of hydrophilic poly(ethylene glycol)-poly(L-glutamic acid) block copolymer, and cyclic RGD peptides are conjugated to side chains of the poly(L-glutamic acid) while IRDye 700DX is conjugated to the terminal of poly(ethylene glycol). The polymers exhibited selective accumulation to the target sites in a subcutaneous solid tumor, and the accumulation was augmented with the increased number of cyclic RGD peptides. More importantly, the polymer containing 15 cyclic RGD peptides in one construct revealed preferential accumulation on the tumor-associated blood vessels without compromising penetration to deep portions of the tumor, thereby drastically inhibiting tumor growth upon photoirradiation, while the polymer containing 5 cyclic RGD peptides showed moderate antitumor activity despite efficient accumulation in the tumor with almost homogenous intratumoral distribution. These results suggest that controlling the intratumoral distribution of IRDye 700DX is critical for successful PDT, and our polymer containing multiple cyclic RGD peptides may be a promising carrier for this spatial control.
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18
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Ahmed S, Miyawaki O, Matsumura K. Enhanced Adsorption of a Protein-Nanocarrier Complex onto Cell Membranes through a High Freeze Concentration by a Polyampholyte Cryoprotectant. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:2352-2362. [PMID: 29361227 DOI: 10.1021/acs.langmuir.7b03622] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The transportation of biomolecules into cells is of great importance in tissue engineering and as stimulation for antitumor immune cells. Previous freezing strategies at ultracold temperatures (-80 °C) used for intracellular transportation exhibit certain limitations such as extended time requirements and harsh delivery system conditions. Thus, the need remains to develop simplified methods for safe nanomaterial delivery. Here, we demonstrated a unique strategy based on the ice-crystallization-induced freeze concentration for protein intracellular delivery in combination with a polyampholyte cryoprotectant. We found that upon sustained lowering of the temperature from -6 to -20 °C over a short duration, the adsorption of proteins onto the peripheral cell membrane was markedly increased through the facile ice-crystallization-induced freeze concentration. Furthermore, we proposed a freeze concentration factor (α) that depends on the freezing-point depression and is estimated from an analysis of the fraction of frozen water. Notably, the α values of the polyampholyte cryoprotectant were 8-fold higher than those of the currently used cryoprotectant dimethyl sulfoxide (DMSO) at particular temperatures of interest. Our results illustrate that the presence of a polyampholyte cryoprotectant significantly enhanced the adsorption of the protein/nanocarrier complex onto membranes compared to that obtained with DMSO because of the high freeze concentration. The present study demonstrated the direct relationship between freezing and the penetration of proteins across the periphery of the cell membrane by means of increased concentration during freezing. These results may be useful in providing a guideline for the intracellular delivery of biomacromolecules using ice-crystallization-induced continuous freezing combined with polyampholyte cryoprotectants.
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Affiliation(s)
- Sana Ahmed
- School of Materials Science, Japan Advanced Institute of Science and Technology , Nomi, Ishikawa 923-1292, Japan
| | - Osato Miyawaki
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology , 4-5-7 Konan, Minato-ku, Tokyo 108-8477, Japan
| | - Kazuaki Matsumura
- School of Materials Science, Japan Advanced Institute of Science and Technology , Nomi, Ishikawa 923-1292, Japan
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19
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Beck S, Schultze J, Räder HJ, Holm R, Schinnerer M, Barz M, Koynov K, Zentel R. Site-Specific DBCO Modification of DEC205 Antibody for Polymer Conjugation. Polymers (Basel) 2018; 10:E141. [PMID: 30966177 PMCID: PMC6414842 DOI: 10.3390/polym10020141] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 01/29/2018] [Accepted: 01/30/2018] [Indexed: 12/12/2022] Open
Abstract
The design of multifunctional polymer-based vectors, forming pDNA vaccines, offers great potential in cancer immune therapy. The transfection of dendritic immune cells (DCs) with tumour antigen-encoding pDNA leads to an activation of the immune system to combat tumour cells. In this work, we investigated the chemical attachment of DEC205 antibodies (aDEC205) as DC-targeting structures to polyplexes of P(Lys)-b-P(HPMA). The conjugation of a synthetic block copolymer and a biomacromolecule with various functionalities (aDEC205) requires bioorthogonal techniques to avoid side reactions. Click chemistry and in particular the strain-promoted alkyne-azide cycloaddition (SPAAC) can provide the required bioorthogonality. With regard to a SPAAC of both components, we firstly synthesized two different azide-containing block copolymers, P(Lys)-b-P(HPMA)-N₃(stat) and P(Lys)-b-P(HPMA)-N₃(end), for pDNA complexation. In addition, the site-specific incorporation of ring-strained dibenzocyclooctyne (DBCO) moieties to the DEC205 antibody was achieved by an enzymatic strategy using bacterial transglutaminase (BTG). The chemical accessibility of DBCO molecules within aDEC205 as well as the accessibility of azide-functionalities on the polyplex' surface were investigated by various SPAAC experiments and characterized by fluorescence correlation spectroscopy (FCS).
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Affiliation(s)
- Simone Beck
- Institute of Organic Chemistry, Johannes-Gutenberg University Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany; (S.B.); (R.H.); (M.B.)
- Graduate School Materials Science in Mainz, Staudingerweg 9, D-55128 Mainz, Germany
| | - Jennifer Schultze
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany; (J.S.); (H.-J.R.); (K.K.)
| | - Hans-Joachim Räder
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany; (J.S.); (H.-J.R.); (K.K.)
| | - Regina Holm
- Institute of Organic Chemistry, Johannes-Gutenberg University Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany; (S.B.); (R.H.); (M.B.)
| | - Meike Schinnerer
- Institute of Physical Chemistry, Jakob Welder Weg 11, D-55128 Mainz, Germany;
| | - Matthias Barz
- Institute of Organic Chemistry, Johannes-Gutenberg University Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany; (S.B.); (R.H.); (M.B.)
| | - Kaloian Koynov
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany; (J.S.); (H.-J.R.); (K.K.)
| | - Rudolf Zentel
- Institute of Organic Chemistry, Johannes-Gutenberg University Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany; (S.B.); (R.H.); (M.B.)
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20
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Functional polymer-based siRNA delivery carrier that recognizes site-specific biosignals. J Control Release 2017; 267:90-99. [PMID: 28923764 DOI: 10.1016/j.jconrel.2017.09.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 08/24/2017] [Accepted: 09/01/2017] [Indexed: 02/07/2023]
Abstract
Responsive molecular designs to specific biosignals in microenvironments endow site-specific functionalities with associated polymers. Thus, the construction of small interfering RNA (siRNA) carriers with functional polymers enables smart programs that are triggered by sequential biosignals in a pathway to the targeted cytosol for effective gene silencing. In this review, we explain rational strategies for the design of functional polymers with responsiveness to biosignals and describe the examples of smart carriers for siRNA delivery.
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21
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Huang CH, Takemoto H, Nomoto T, Tomoda K, Matsui M, Nishiyama N. Utility of the 2-Nitrobenzenesulfonamide Group as a Chemical Linker for Enhanced Extracellular Stability and Cytosolic Cleavage in siRNA-Conjugated Polymer Systems. ChemMedChem 2016; 12:19-22. [DOI: 10.1002/cmdc.201600488] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 10/26/2016] [Indexed: 12/20/2022]
Affiliation(s)
- Chih Hao Huang
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; R1-11, 4259 Nagatsuta-cho, Midori-ku Yokohama Kanagawa 226-8503 Japan
| | - Hiroyasu Takemoto
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; R1-11, 4259 Nagatsuta-cho, Midori-ku Yokohama Kanagawa 226-8503 Japan
| | - Takahiro Nomoto
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; R1-11, 4259 Nagatsuta-cho, Midori-ku Yokohama Kanagawa 226-8503 Japan
| | - Keishiro Tomoda
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; R1-11, 4259 Nagatsuta-cho, Midori-ku Yokohama Kanagawa 226-8503 Japan
| | - Makoto Matsui
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; R1-11, 4259 Nagatsuta-cho, Midori-ku Yokohama Kanagawa 226-8503 Japan
| | - Nobuhiro Nishiyama
- Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; R1-11, 4259 Nagatsuta-cho, Midori-ku Yokohama Kanagawa 226-8503 Japan
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22
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Che Harun NF, Takemoto H, Nomoto T, Tomoda K, Matsui M, Nishiyama N. Artificial Control of Gene Silencing Activity Based on siRNA Conjugation with Polymeric Molecule Having Coil-Globule Transition Behavior. Bioconjug Chem 2016; 27:1961-4. [PMID: 27506383 DOI: 10.1021/acs.bioconjchem.6b00322] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A new strategy for controlling gene silencing activity of siRNA in the cell was developed in the present study. siRNA was linearly conjugated with PNIPAAm, where coil-globule transition of the conjugated PNIPAAm allows thermoresponsive exposure of the vicinal siRNA molecule; a coil form of PNIPAAm (T < LCST) inhibits siRNA interaction with gene silencing-related proteins due to the steric hindrance effect, while a globule form of PNIPAAm (T > LCST) allows a ready access of siRNA to gene silencing pathway. As a result, at T > LCST, PNIPAAm-siRNA elicited effective association of siRNA with a gene silencing-related protein of Ago2, while siRNA recruitment into the gene silencing pathway was significantly suppressed at T < LCST. Ultimately, gene silencing efficacy of PNIPAAm-siRNA was close to unconjugated siRNA at T > LCST (∼80%), while it was dramatically decreased to ∼20% at T < LCST, suggesting that coil-globule transition of the conjugated polymer can control the bioactivity of the vicinal siRNA molecule.
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Affiliation(s)
- Noor Faizah Che Harun
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology , R1-11, 4259, Nagatsuta, Midori-Ku, Yokohama, Kanagawa 226-8503, Japan
| | - Hiroyasu Takemoto
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology , R1-11, 4259, Nagatsuta, Midori-Ku, Yokohama, Kanagawa 226-8503, Japan
| | - Takahiro Nomoto
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology , R1-11, 4259, Nagatsuta, Midori-Ku, Yokohama, Kanagawa 226-8503, Japan
| | - Keishiro Tomoda
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology , R1-11, 4259, Nagatsuta, Midori-Ku, Yokohama, Kanagawa 226-8503, Japan
| | - Makoto Matsui
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology , R1-11, 4259, Nagatsuta, Midori-Ku, Yokohama, Kanagawa 226-8503, Japan
| | - Nobuhiro Nishiyama
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology , R1-11, 4259, Nagatsuta, Midori-Ku, Yokohama, Kanagawa 226-8503, Japan
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23
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Nuhn L, Kaps L, Diken M, Schuppan D, Zentel R. Reductive Decationizable Block Copolymers for Stimuli-Responsive mRNA Delivery. Macromol Rapid Commun 2016; 37:924-33. [DOI: 10.1002/marc.201600046] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Revised: 03/09/2016] [Indexed: 12/26/2022]
Affiliation(s)
- Lutz Nuhn
- Institute of Organic Chemistry; Johannes Gutenberg-University Mainz; Duesbergweg 10-14 D-55099 Mainz Germany
- Department of Pharmaceutics; Ghent University; Ottergemsesteenweg 460 B-9000 Ghent Belgium
| | - Leonard Kaps
- Institute of Translational Immunology; University Medical Center of the Johannes Gutenberg-University Mainz; Langenbeckstraße 1 D-55101 Mainz Germany
| | - Mustafa Diken
- TRON - Translational Oncology; University Medical Center of the Johannes Gutenberg-University Mainz; Freiligrathstraße 12 D-55131 Mainz Germany
| | - Detlef Schuppan
- Institute of Translational Immunology; University Medical Center of the Johannes Gutenberg-University Mainz; Langenbeckstraße 1 D-55101 Mainz Germany
- Division of Gastroenterology; Beth Israel Deaconess Medical Center; Harvard Medical School; 330 Brookline Avenue Boston MA 02215 USA
| | - Rudolf Zentel
- Institute of Organic Chemistry; Johannes Gutenberg-University Mainz; Duesbergweg 10-14 D-55099 Mainz Germany
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24
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Florinas S, Liu M, Fleming R, Van Vlerken-Ysla L, Ayriss J, Gilbreth R, Dimasi N, Gao C, Wu H, Xu ZQ, Chen S, Dirisala A, Kataoka K, Cabral H, Christie RJ. A Nanoparticle Platform To Evaluate Bioconjugation and Receptor-Mediated Cell Uptake Using Cross-Linked Polyion Complex Micelles Bearing Antibody Fragments. Biomacromolecules 2016; 17:1818-33. [PMID: 27007881 DOI: 10.1021/acs.biomac.6b00239] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Targeted nanomedicines are a promising technology for treatment of disease; however, preparation and characterization of well-defined protein-nanoparticle systems remain challenging. Here, we describe a platform technology to prepare antibody binding fragment (Fab)-bearing nanoparticles and an accompanying real-time cell-based assay to determine their cellular uptake compared to monoclonal antibodies (mAbs) and Fabs. The nanoparticle platform was composed of core-cross-linked polyion complex (PIC) micelles prepared from azide-functionalized PEG-b-poly(amino acids), that is, azido-PEG-b-poly(l-lysine) [N3-PEG-b-PLL] and azido-PEG-b-poly(aspartic acid) [N3-PEG-b-PAsp]. These PIC micelles were 30 nm in size and contained approximately 10 polymers per construct. Fabs were derived from an antibody binding the EphA2 receptor expressed on cancer cells and further engineered to contain a reactive cysteine for site-specific attachment and a cleavable His tag for purification from cell culture expression systems. Azide-functionalized micelles and thiol-containing Fab were linked using a heterobifunctional cross-linker (FPM-PEG4-DBCO) that contained a fluorophenyl-maleimide for stable conjugation to Fabs thiols and a strained alkyne (DBCO) group for coupling to micelle azide groups. Analysis of Fab-PIC micelle conjugates by fluorescence correlation spectroscopy, size exclusion chromatography, and UV-vis absorbance determined that each nanoparticle contained 2-3 Fabs. Evaluation of cellular uptake in receptor positive cancer cells by real-time fluorescence microscopy revealed that targeted Fab-PIC micelles achieved higher cell uptake than mAbs and Fabs, demonstrating the utility of this approach to identify targeted nanoparticle constructs with unique cellular internalization properties.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Ze-Qi Xu
- SynChem, Inc., Elk Grove Village, Illinois 60007, United States
| | | | | | - Kazunori Kataoka
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,The Innovation Center of Nanomedicine, 66-20 Horikawa-cho, Saiwai-ku, Kawasaki 212-0013, Japan
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25
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Osawa S, Osada K, Hiki S, Dirisala A, Ishii T, Kataoka K. Polyplex Micelles with Double-Protective Compartments of Hydrophilic Shell and Thermoswitchable Palisade of Poly(oxazoline)-Based Block Copolymers for Promoted Gene Transfection. Biomacromolecules 2015; 17:354-61. [PMID: 26682466 DOI: 10.1021/acs.biomac.5b01456] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Improving the stability of polyplex micelles under physiological conditions is a critical issue for promoting gene transfection efficiencies. To this end, hydrophobic palisade was installed between the inner core of packaged plasmid DNA (pDNA) and the hydrophilic shell of polyplex micelles using a triblock copolymer consisting of hydrophilic poly(2-ethyl-2-oxazoline), thermoswitchable amphiphilic poly(2-n-propyl-2-oxazoline) (PnPrOx) and cationic poly(L-lysine). The two-step preparation procedure, mixing the triblock copolymer with pDNA below the lower critical solution temperature (LCST) of PnPrOx, followed by incubation above the LCST to form a hydrophobic palisade of the collapsed PnPrOx segment, induced the formation of spatially aligned hydrophilic-hydrophobic double-protected polyplex micelles. The prepared polyplex micelles exhibited significant tolerance against attacks from nuclease and polyanions compared to those without hydrophobic palisades, thereby promoting gene transfection. These results corroborated the utility of amphiphilic poly(oxazoline) as a molecular thermal switch to improve the stability of polyplex gene carriers relevant for physiological applications.
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Affiliation(s)
| | - Kensuke Osada
- Japan Science and Technology Agency, PRESTO, Tokyo, Japan
| | | | | | | | - Kazunori Kataoka
- Division of Clinical Biotechnology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo , 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan.,Innovation Center of NanoMedicine (iCONM), 3-25-14, Tonomachi, Kawasaki-ku, Kawasaki, 210-0821, Japan
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26
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Takemoto H, Miyata K, Nishiyama N, Kataoka K. Bioresponsive polymer-based nucleic acid carriers. ADVANCES IN GENETICS 2015; 88:289-323. [PMID: 25409610 DOI: 10.1016/b978-0-12-800148-6.00010-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Nucleic acid carriers need to possess multifunctionality for overcoming biological barriers, such as the stable encapsulation of nucleic acids in extracellular milieu, internalization by target cells, controlled intracellular distribution, and release of nucleic acids at the target site of action. To fulfill these stepwise functionalities, "bioresponsive" polymers that can alter their structure responding to site-specific biological signals are highly useful. Notably, pH, redox potential, and enzymatic activities vary along with microenvironments in the body, and thus, the responsiveness to these signals enables to construct nucleic acid carriers with programmed functionalities. This chapter describes the design of bioresponsive polymers that respond to various biological microenvironments for smart nucleic acids delivery.
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Affiliation(s)
- Hiroyasu Takemoto
- Polymer Chemistry Division, Chemical Resources Laboratory, Tokyo Institute of Technology, Japan
| | - Kanjiro Miyata
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Japan
| | - Nobuhiro Nishiyama
- Polymer Chemistry Division, Chemical Resources Laboratory, Tokyo Institute of Technology, Japan
| | - Kazunori Kataoka
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Japan; Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, Japan
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Someya T, Ando A, Kimoto M, Hirao I. Site-specific labeling of RNA by combining genetic alphabet expansion transcription and copper-free click chemistry. Nucleic Acids Res 2015; 43:6665-76. [PMID: 26130718 PMCID: PMC4538826 DOI: 10.1093/nar/gkv638] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Accepted: 06/10/2015] [Indexed: 12/16/2022] Open
Abstract
Site-specific labeling of long-chain RNAs with desired molecular probes is an imperative technique to facilitate studies of functional RNA molecules. By genetic alphabet expansion using an artificial third base pair, called an unnatural base pair, we present a post-transcriptional modification method for RNA transcripts containing an incorporated azide-linked unnatural base at specific positions, using a copper-free click reaction. The unnatural base pair between 7-(2-thienyl)imidazo[4,5-b]pyridine (Ds) and pyrrole-2-carbaldehyde (Pa) functions in transcription. Thus, we chemically synthesized a triphosphate substrate of 4-(4-azidopentyl)-pyrrole-2-carbaldehyde (N3-PaTP), which can be site-specifically introduced into RNA, opposite Ds in templates by T7 transcription. The N3-Pa incorporated in the transcripts was modified with dibenzocyclooctyne (DIBO) derivatives. We demonstrated the transcription of 17-, 76- and 260-mer RNA molecules and their site-specific labeling with Alexa 488, Alexa 594 and biotin. This method will be useful for preparing RNA molecules labeled with any functional groups of interest, toward in vivo experiments.
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Affiliation(s)
- Tatsuhiko Someya
- RIKEN Center for Life Science Technologies, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Ami Ando
- RIKEN Center for Life Science Technologies, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Michiko Kimoto
- RIKEN Center for Life Science Technologies, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan TagCyx Biotechnologies, 1-6-126 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan PRESTO, JST, Honcho, Kawaguchi-shi, Saitama 332-0012, Japan
| | - Ichiro Hirao
- RIKEN Center for Life Science Technologies, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan TagCyx Biotechnologies, 1-6-126 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
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28
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Kawamura W, Miura Y, Kokuryo D, Toh K, Yamada N, Nomoto T, Matsumoto Y, Sueyoshi D, Liu X, Aoki I, Kano MR, Nishiyama N, Saga T, Kishimura A, Kataoka K. Density-tunable conjugation of cyclic RGD ligands with polyion complex vesicles for the neovascular imaging of orthotopic glioblastomas. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2015; 16:035004. [PMID: 27877805 PMCID: PMC5099842 DOI: 10.1088/1468-6996/16/3/035004] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 04/23/2015] [Indexed: 05/29/2023]
Abstract
Introduction of ligands into 100 nm scaled hollow capsules has great potential for diagnostic and therapeutic applications in drug delivery systems. Polyethylene glycol-conjugated (PEGylated) polyion complex vesicles (PICsomes) are promising hollow nano-capsules that can survive for long periods in the blood circulation and can be used to deliver water-soluble macromolecules to target tissues. In this study, cyclic RGD (cRGD) peptide, which is specifically recognized by αVβ3 and αvβ5 integrins that are expressed at high levels in the neovascular system, was conjugated onto the distal end of PEG strands on PICsomes for active neovascular targeting. Density-tunable cRGD-conjugation was achieved using PICsomes with definite fraction of end-functionalized PEG, to substitute 20, 40, and 100% of PEG distal end of the PICsomes to cRGD moieties. Compared with control-PICsomes without cRGD, cRGD-PICsomes exhibited increased uptake into human umbilical vein endothelial cells. Intravital confocal laser scanning microscopy revealed that the 40%-cRGD-PICsomes accumulated mainly in the tumor neovasculature and remained in the perivascular region even after 24 h. Furthermore, we prepared superparamagnetic iron oxide (SPIO)-loaded cRGD-PICsomes for magnetic resonance imaging (MRI) and successfully visualized the neovasculature in an orthotopic glioblastoma model, which suggests that SPIO-loaded cRGD-PICsomes might be useful as a MRI contrast reagent for imaging of the tumor microenvironment, including neovascular regions that overexpress αVβ3 integrins.
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Affiliation(s)
- Wataru Kawamura
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yutaka Miura
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Daisuke Kokuryo
- Molecular Imaging Center, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Kazuko Toh
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Naoki Yamada
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takahiro Nomoto
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yu Matsumoto
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Daiki Sueyoshi
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Xueying Liu
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ichio Aoki
- Molecular Imaging Center, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Mitsunobu R Kano
- Department of Pharmaceutical Biomedicine, Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Nobuhiro Nishiyama
- Polymer Chemistry Division, Chemical Resources Laboratory, Tokyo Institute of Technology, R1-11, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Tsuneo Saga
- Molecular Imaging Center, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Akihiro Kishimura
- Department of Applied Chemistry, Faculty of Engineering, Kyusyu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kazunori Kataoka
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Innovation Center of Nanomedicine, Kawasaki Institute of Industry Promotion, 66-20 Horikawa-cho, Saiwai-ku, Kawasaki 212-0013, Japan
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29
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Subramanian N, Sreemanthula JB, Balaji B, Kanwar JR, Biswas J, Krishnakumar S. A strain-promoted alkyne-azide cycloaddition (SPAAC) reaction of a novel EpCAM aptamer-fluorescent conjugate for imaging of cancer cells. Chem Commun (Camb) 2015; 50:11810-3. [PMID: 25005751 DOI: 10.1039/c4cc02996h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
For the first time, a novel EpCAM aptamer (SYL3C)-DIBO-AF594 fluorescent conjugate was synthesised by bioorthogonal chemistry utilizing a strain promoted alkyne-azide cycloaddition (copper free click) reaction (SPAAC). The ligation efficiency of SPAAC was improved by freeze-thaw cycles. The obtained conjugate showed target specific binding and aided in the imaging of various EpCAM positive cancer cell lines like MCF7, MDAMB453, Weri-RB1 and PC3.
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Affiliation(s)
- Nithya Subramanian
- Department of Nanobiotechnology, Kamalnayan Bajaj Research Institute, Vision Research Foundation, Chennai, India.
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Ahmed S, Hayashi F, Nagashima T, Matsumura K. Protein cytoplasmic delivery using polyampholyte nanoparticles and freeze concentration. Biomaterials 2014; 35:6508-18. [DOI: 10.1016/j.biomaterials.2014.04.030] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Accepted: 04/10/2014] [Indexed: 12/18/2022]
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31
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Luvino D, Khiati S, Oumzil K, Rocchi P, Camplo M, Barthélémy P. Efficient delivery of therapeutic small nucleic acids to prostate cancer cells using ketal nucleoside lipid nanoparticles. J Control Release 2013; 172:954-61. [DOI: 10.1016/j.jconrel.2013.09.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 09/02/2013] [Accepted: 09/05/2013] [Indexed: 01/19/2023]
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32
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Takemoto H, Miyata K, Hattori S, Ishii T, Suma T, Uchida S, Nishiyama N, Kataoka K. Acidic pH-Responsive siRNA Conjugate for Reversible Carrier Stability and Accelerated Endosomal Escape with Reduced IFNα-Associated Immune Response. Angew Chem Int Ed Engl 2013; 52:6218-21. [DOI: 10.1002/anie.201300178] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Revised: 02/25/2013] [Indexed: 01/30/2023]
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33
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Takemoto H, Miyata K, Hattori S, Ishii T, Suma T, Uchida S, Nishiyama N, Kataoka K. Acidic pH-Responsive siRNA Conjugate for Reversible Carrier Stability and Accelerated Endosomal Escape with Reduced IFNα-Associated Immune Response. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201300178] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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