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Nomura S, Miyasaka A, Maruyama A, Shimada N. Spontaneous Liquid Droplet-to-Gel Transition of Citrulline Polypeptide Complexed with Nucleic Acids. ACS Biomater Sci Eng 2024; 10:1473-1480. [PMID: 38404112 DOI: 10.1021/acsbiomaterials.3c01716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Inside cells, proteins complex with nucleic acids to form liquid droplets resulting from liquid-liquid phase separation. The presence of mutated proteins can change the state of these liquid droplets to solids or gels, triggering neurodegenerative diseases. The mechanism of the liquid to solid or gel transition is still unclear. Solutions of poly(l-ornithine-co-l-citrulline) (PLOC) copolymers, which exhibit upper critical solution temperature-type behavior, change state upon cooling. In this study, we evaluated the effect of nucleic acids complexed with PLOC on phase changes. In the presence of nucleic acids, such as polyC and polyU, PLOC formed liquid droplets at low temperatures. The droplets dissolved at temperatures above the phase separation temperature. The phase separation temperature depended on the chemical structure of the nucleobase, implying that electrostatic and hydrogen bonding interactions between the nucleic acid and PLOC influenced phase separation. Furthermore, the liquid droplets spontaneously changed to gel-like precipitates due to spontaneous release of nucleic acids from the complex. The rate of the liquid droplet-to-gel transition depended on the magnitude of electrostatic and hydrogen bonding interactions between PLOC and nucleic acid. PLOC complexed with mRNA also underwent a liquid droplet-to-gel transition upon the release of mRNA. This work provides insights into the mechanism of pathogenic transitions of the cellular droplets.
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Affiliation(s)
- Shouhei Nomura
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Ayano Miyasaka
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Naohiko Shimada
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
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2
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Takemura S, Shimada N, Maruyama A. Malachite green-derivatized cationic comb-type copolymer acts as a photoresponsive artificial chaperone. J Biomater Sci Polym Ed 2023; 34:2463-2482. [PMID: 37787160 DOI: 10.1080/09205063.2023.2265127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 09/01/2023] [Indexed: 10/04/2023]
Abstract
Molecular chaperones play vital roles in various physiological reactions by regulating the folding and assembly of biomacromolecules. We have demonstrated that cationic comb-type copolymers exhibit chaperone activity for anionic biomolecules including DNA and ionic peptide via the formation of soluble interpolyelectrolyte complexes. The development of smart artificial chaperones that can be spatiotemporally controlled by a remotely guided signal would expand the functions of artificial chaperones. Herein, to enable photocontrol of chaperone activity, a cationic comb-type copolymer bearing malachite green as a photoresponsive unit was designed. We first prepared a series of carboxylic acid derivatives of malachite green identified a derivative that could be quickly and quantitatively converted to the cationic form from the nonionic form by photoirradiation. This derivative was conjugated to the cationic comb-type copolymer, poly(allylamine)-graft-poly(ethylene glycol) through a condensation reaction. Upon photoirradiation, the copolymer bearing 9 mol% malachite green enhanced the membrane disruptive activity of acidic peptide E5 and induced morphological changes in liposomes. This demonstration of photoresponsive activation of chaperoning activity of a copolymer suggests that the installation of carboxyl derivatives of malachite green will impart photoresponsiveness to various materials including biopolymers.
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Affiliation(s)
- Seiya Takemura
- Department of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
| | - Naohiko Shimada
- Department of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
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Wang J, Huang H, Hanpanich O, Shimada N, Maruyama A. Cationic copolymer and crowding agent have a cooperative effect on a Na +-dependent DNAzyme. Biomater Sci 2023; 11:7062-7066. [PMID: 37706516 DOI: 10.1039/d3bm01119d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
DNAzymes are promising agents for theranostics and biosensors. Sodium dependent DNAzymes have been developed for sensing and imaging of Na+, but these DNAzymes have low catalytic activity. Herein, we demonstrate that a molecular crowded environment containing 10 to 40 wt% PEG enhanced the catalytic activity of a Na+-dependent DNAzyme, EtNa, although dextran did not. The cationic copolymer poly(L-lysine)-graft-poly(ethylene glycol) at 0.03 wt% (0.3 g L-1) enhanced the reaction rate of EtNa by 10-fold, which is similar to the acceleration induced by 15 wt% (150 g L-1) PEG. A cooperative impact of the copolymer and crowding agent was observed: the combination resulted in an impressive 46-fold acceleration effect. Thus, the use of a cationic copolymer and a crowding agent is a promising strategy to improve the activity of Na+-dependent DNAzyme-based nanomachines, biosensors, and theranostics, especially in environments lacking divalent metal ions.
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Affiliation(s)
- Jun Wang
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho 4259 B-57, Midori, Yokohama 226-8501, Japan.
| | - He Huang
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho 4259 B-57, Midori, Yokohama 226-8501, Japan.
| | - Orakan Hanpanich
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho 4259 B-57, Midori, Yokohama 226-8501, Japan.
| | - Naohiko Shimada
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho 4259 B-57, Midori, Yokohama 226-8501, Japan.
| | - Atsushi Maruyama
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho 4259 B-57, Midori, Yokohama 226-8501, Japan.
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Zhang W, Takahashi S, Shimada N, Maruyama A. 2D-3D-Convertible, pH-Responsive Lipid Nanosheets. Small 2023; 19:e2301219. [PMID: 37376845 DOI: 10.1002/smll.202301219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 06/10/2023] [Indexed: 06/29/2023]
Abstract
2D nanosheets self-assembled with amphiphilic molecules are promising tools for biomedical applications; yet, there are challenges to form and stabilize these nanosheets under complex physiological conditions. Here, the development of lipid nanosheets with high structural stability that can be reversibly converted to cell-sized vesicles by changes in pH within the physiological range robustly, are described. The system is controlled by the membrane disruptive peptide E5 and a cationic copolymer anchored on lipid membranes. It is envisioned that nanosheets formed using the dual anchoring peptide/cationic copolymer system can be employed in dynamic lipidic nanodevices, such as the vesosomes described here, drug delivery systems, and artificial cells.
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Affiliation(s)
- Wancheng Zhang
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
| | - Shutaro Takahashi
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
| | - Naohiko Shimada
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
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Wang J, Raito H, Shimada N, Maruyama A. A Cationic Copolymer Enhances Responsiveness and Robustness of DNA Circuits. Small 2023; 19:e2304091. [PMID: 37340578 DOI: 10.1002/smll.202304091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 12/12/2012] [Indexed: 06/22/2023]
Abstract
Toehold-mediated DNA circuits are extensively employed to construct diverse DNA nanodevices and signal amplifiers. However, operations of these circuits are slow and highly susceptive to molecular noise such as the interference from bystander DNA strands. Herein, this work investigates the effects of a series of cationic copolymers on DNA catalytic hairpin assembly, a representative toehold-mediated DNA circuit. One copolymer, poly(L -lysine)-graft-dextran, significantly enhances the reaction rate by 30-fold due to its electrostatic interaction with DNA. Moreover, the copolymer considerably alleviates the circuit's dependency on the length and GC content of toehold, thereby enhancing the robustness of circuit operation against molecular noise. The general effectiveness of poly(L -lysine)-graft-dextran is demonstrated through kinetic characterization of a DNA AND logic circuit. Therefore, use of a cationic copolymer is a versatile and efficient approach to enhance the operation rate and robustness of toehold-mediated DNA circuits, paving the way for more flexible design and broader application.
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Affiliation(s)
- Jun Wang
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho 4259 B-57, Midori, Yokohama, 226-8501, Japan
| | - Hayashi Raito
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho 4259 B-57, Midori, Yokohama, 226-8501, Japan
| | - Naohiko Shimada
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho 4259 B-57, Midori, Yokohama, 226-8501, Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho 4259 B-57, Midori, Yokohama, 226-8501, Japan
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Masuda T, Takahashi S, Ochiai T, Yamada T, Shimada N, Maruyama A. Autonomous Vesicle/Sheet Transformation of Cell-Sized Lipid Bilayers by Hetero-Grafted Copolymers. ACS Appl Mater Interfaces 2022; 14:53558-53566. [PMID: 36442490 DOI: 10.1021/acsami.2c17435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Lipid bilayer transformations are involved in biological phenomena including cell division, autophagy, virus infection, and vesicle transport. Artificial materials to manipulate membrane dynamics play a vital role in cellular engineering and drug delivery technology that accesses the membranes of cells or liposomes. Transformation from 3D lipid vesicles to 2D nanosheets is thermodynamically prohibited because the apolar/polar interfaces between the hydrophobic bilayer edges and water are energetically unfavorable. We recently reported that cell-sized lipid vesicles (or giant vesicles) can be thoroughly transformed to 2D nanosheets by the addition of the amphiphilic E5 peptide and a cationic graft copolymer. Here, to understand the mechanisms underlying the lipid nanosheet formation, we systematically investigated the structural effects of the cationic copolymers on nanosheet formation. We found that lipid nanosheet formation is controlled in an all-or-nothing manner when the graft content of the copolymer is increased from 5.7 mol % to 7.7 mol %. This finding prompted us to obtain autonomous 2D/3D transformation system. A newly designed hetero-grafted cationic copolymers with thermoresponsive poly(N-isopropylacrylamide) grafts enables spontaneous 3D vesicle/2D nanosheet transformation in response to temperature. These findings would enable us to obtain smart nanointerfaces that trigger cell-sized lipid membrane dynamics in response to diverse stimuli and to create 2D-3D convertible lipid-based biomaterials.
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Affiliation(s)
- Tsukuru Masuda
- School of Life Science and Technology, Tokyo Institute of Technology, B-57 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa226-8501, Japan
| | - Shutaro Takahashi
- School of Life Science and Technology, Tokyo Institute of Technology, B-57 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa226-8501, Japan
| | - Takuro Ochiai
- School of Life Science and Technology, Tokyo Institute of Technology, B-57 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa226-8501, Japan
| | - Takayoshi Yamada
- School of Life Science and Technology, Tokyo Institute of Technology, B-57 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa226-8501, Japan
| | - Naohiko Shimada
- School of Life Science and Technology, Tokyo Institute of Technology, B-57 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa226-8501, Japan
| | - Atsushi Maruyama
- School of Life Science and Technology, Tokyo Institute of Technology, B-57 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa226-8501, Japan
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7
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Rimini M, Rimassa L, Ueshima K, Burgio V, Shigeo S, Tada T, Suda G, Yoo C, Cheon J, Pinato DJ, Lonardi S, Scartozzi M, Iavarone M, Di Costanzo GG, Marra F, Soldà C, Tamburini E, Piscaglia F, Masi G, Cabibbo G, Foschi FG, Silletta M, Pressiani T, Nishida N, Iwamoto H, Sakamoto N, Ryoo BY, Chon HJ, Claudia F, Niizeki T, Sho T, Kang B, D'Alessio A, Kumada T, Hiraoka A, Hirooka M, Kariyama K, Tani J, Atsukawa M, Takaguchi K, Itobayashi E, Fukunishi S, Tsuji K, Ishikawa T, Tajiri K, Ochi H, Yasuda S, Toyoda H, Ogawa C, Nishimur T, Hatanaka T, Kakizaki S, Shimada N, Kawata K, Tanaka T, Ohama H, Nouso K, Morishita A, Tsutsui A, Nagano T, Itokawa N, Okubo T, Arai T, Imai M, Naganuma A, Koizumi Y, Nakamura S, Joko K, Iijima H, Hiasa Y, Pedica F, De Cobelli F, Ratti F, Aldrighetti L, Kudo M, Cascinu S, Casadei-Gardini A. Atezolizumab plus bevacizumab versus lenvatinib or sorafenib in non-viral unresectable hepatocellular carcinoma: an international propensity score matching analysis. ESMO Open 2022; 7:100591. [PMID: 36208496 PMCID: PMC9808460 DOI: 10.1016/j.esmoop.2022.100591] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/21/2022] [Accepted: 08/22/2022] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND A growing body of evidence suggests that non-viral hepatocellular carcinoma (HCC) might benefit less from immunotherapy. MATERIALS AND METHODS We carried out a retrospective analysis of prospectively collected data from consecutive patients with non-viral advanced HCC, treated with atezolizumab plus bevacizumab, lenvatinib, or sorafenib, in 36 centers in 4 countries (Italy, Japan, Republic of Korea, and UK). The primary endpoint was overall survival (OS) with atezolizumab plus bevacizumab versus lenvatinib. Secondary endpoints were progression-free survival (PFS) with atezolizumab plus bevacizumab versus lenvatinib, and OS and PFS with atezolizumab plus bevacizumab versus sorafenib. For the primary and secondary endpoints, we carried out the analysis on the whole population first, and then we divided the cohort into two groups: non-alcoholic fatty liver disease (NAFLD)/non-alcoholic steatohepatitis (NASH) population and non-NAFLD/NASH population. RESULTS One hundred and ninety patients received atezolizumab plus bevacizumab, 569 patients received lenvatinib, and 210 patients received sorafenib. In the whole population, multivariate analysis showed that treatment with lenvatinib was associated with a longer OS [hazard ratio (HR) 0.65; 95% confidence interval (CI) 0.44-0.95; P = 0.0268] and PFS (HR 0.67; 95% CI 0.51-0.86; P = 0.002) compared to atezolizumab plus bevacizumab. In the NAFLD/NASH population, multivariate analysis confirmed that lenvatinib treatment was associated with a longer OS (HR 0.46; 95% CI 0.26-0.84; P = 0.0110) and PFS (HR 0.55; 95% CI 0.38-0.82; P = 0.031) compared to atezolizumab plus bevacizumab. In the subgroup of non-NAFLD/NASH patients, no difference in OS or PFS was observed between patients treated with lenvatinib and those treated with atezolizumab plus bevacizumab. All these results were confirmed following propensity score matching analysis. By comparing patients receiving atezolizumab plus bevacizumab versus sorafenib, no statistically significant difference in survival was observed. CONCLUSIONS The present analysis conducted on a large number of advanced non-viral HCC patients showed for the first time that treatment with lenvatinib is associated with a significant survival benefit compared to atezolizumab plus bevacizumab, in particular in patients with NAFLD/NASH-related HCC.
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Affiliation(s)
- M Rimini
- IRCCS San Raffaele Scientific Institute Hospital, Department of Oncology, Vita-Salute San Raffaele University, Milan, Italy
| | - L Rimassa
- Department of Biomedical Sciences, Humanitas University, Milan, Italy; Medical Oncology and Hematology Unit, Humanitas Cancer Center, IRCCS Humanitas Research Hospital, Milan, Italy
| | - K Ueshima
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Higashi-Osaka, Japan
| | - V Burgio
- IRCCS San Raffaele Scientific Institute Hospital, Department of Oncology, Vita-Salute San Raffaele University, Milan, Italy
| | - S Shigeo
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - T Tada
- Department of Internal Medicine, Japanese Red Cross Himeji Hospital, Himeji, Japan
| | - G Suda
- Department of Gastroenterology and Hepatology, Hokkaido, Japan; University Graduate School of Medicine, Sapporo, Japan
| | - C Yoo
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J Cheon
- Department of Medical Oncology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Republic of Korea
| | - D J Pinato
- Department of Surgery & Cancer, Imperial College London, Hammersmith Hospital, London, UK; Department of Translational Medicine, Università degli Studi del Piemonte Orientale, Novara, Italy
| | - S Lonardi
- Oncology Unit 3, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - M Scartozzi
- Medical Oncology, University and University Hospital of Cagliari, Cagliari, Italy
| | - M Iavarone
- Division of Gastroenterology and Hepatology, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | | | - F Marra
- Dipartimento di Medicina Sperimentale e Clinica, Università di Firenze, Firenze, Italy
| | - C Soldà
- Oncology Unit 1, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - E Tamburini
- Department of Oncology and Palliative Care, Cardinale Hospital, Naples, Italy
| | - F Piscaglia
- Division of Internal Medicine, Hepatobiliary and Immunoallergic Disease, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - G Masi
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy; Unit of Medical Oncology 2, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy
| | - G Cabibbo
- Section of Gastroenterology & Hepatology, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, PROMISE, University of Palermo, Palermo, Italy
| | - F G Foschi
- Internal Medicine, Infermi Hospital, Faenza (AUSL ROMAGNA), Ravenna, Italy
| | - M Silletta
- Division of Medical Oncology, Policlinico Universitario Campus Bio-Medico, Rome, Italy
| | - T Pressiani
- Medical Oncology and Hematology Unit, Humanitas Cancer Center, IRCCS Humanitas Research Hospital, Milan, Italy
| | - N Nishida
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Higashi-Osaka, Japan
| | - H Iwamoto
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - N Sakamoto
- Department of Gastroenterology and Hepatology, Hokkaido, Japan; University Graduate School of Medicine, Sapporo, Japan
| | - B-Y Ryoo
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - H J Chon
- Department of Medical Oncology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Republic of Korea
| | - F Claudia
- Department of Surgery & Cancer, Imperial College London, Hammersmith Hospital, London, UK; Department of Translational Medicine, Università degli Studi del Piemonte Orientale, Novara, Italy
| | - T Niizeki
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - T Sho
- Department of Gastroenterology and Hepatology, Hokkaido, Japan; University Graduate School of Medicine, Sapporo, Japan
| | - B Kang
- Department of Medical Oncology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Republic of Korea
| | - A D'Alessio
- Department of Surgery & Cancer, Imperial College London, Hammersmith Hospital, London, UK; Department of Translational Medicine, Università degli Studi del Piemonte Orientale, Novara, Italy
| | - T Kumada
- Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan
| | - A Hiraoka
- Gastroenterology Center, Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - M Hirooka
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - K Kariyama
- Department of Gastroenterology, Okayama City Hospital, Okayama, Japan
| | - J Tani
- Department of Gastroenterology and Hepatology, Kagawa University, Kagawa, Japan
| | - M Atsukawa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - K Takaguchi
- Department of Hepatology, Kagawa Prefectural Central Hospital, Takamatsu, Japan
| | - E Itobayashi
- Department of Gastroenterology, Asahi General Hospital, Asahi, Japan
| | - S Fukunishi
- Premier Departmental Research of Medicine, Osaka Medical and Pharmaceutical University, Shinya Fukunishi, Osaka, Japan
| | - K Tsuji
- Center of Gastroenterology, Teine Keijinkai Hospital, Sapporo, Japan
| | - T Ishikawa
- Department of Gastroenterology, Saiseikai Niigata Hospital, Niigata, Japan
| | - K Tajiri
- Department of Gastroenterology, Toyama University Hospital, Toyama, Japan
| | - H Ochi
- Hepato-biliary Center, Japanese Red Cross Matsuyama Hospital, Matsuyama, Japan
| | - S Yasuda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan
| | - H Toyoda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan
| | - C Ogawa
- Department of Gastroenterology, Japanese Red Cross Takamatsu Hospital, Takamatsu, Japan
| | - T Nishimur
- Department of Internal medicine, Division of Gastroenterology and Hepatology, Hyogo College of Medicine, Nishinomiya, Japan
| | - T Hatanaka
- Department of Gastroenterology, Gunma Saiseikai Maebashi Hospital, Maebashi, Japan
| | - S Kakizaki
- Department of Clinical Research, National Hospital Organization Takasaki General Medical Center, Takasaki, Japan
| | - N Shimada
- Division of Gastroenterology and Hepatology, Otakanomori Hospital, Kashiwa, Japan
| | - K Kawata
- Department of Hepatology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - T Tanaka
- Gastroenterology Center, Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - H Ohama
- Premier Departmental Research of Medicine, Osaka Medical and Pharmaceutical University, Shinya Fukunishi, Osaka, Japan
| | - K Nouso
- Department of Gastroenterology, Okayama City Hospital, Okayama, Japan
| | - A Morishita
- Department of Gastroenterology and Hepatology, Kagawa University, Kagawa, Japan
| | - A Tsutsui
- Department of Hepatology, Kagawa Prefectural Central Hospital, Takamatsu, Japan
| | - T Nagano
- Department of Hepatology, Kagawa Prefectural Central Hospital, Takamatsu, Japan
| | - N Itokawa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - T Okubo
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - T Arai
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - M Imai
- Department of Gastroenterology, Saiseikai Niigata Hospital, Niigata, Japan
| | - A Naganuma
- Department of Gastroenterology, National Hospital Organization Takasaki General Medical Center, Takasaki, Japan
| | - Y Koizumi
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - S Nakamura
- Department of Internal Medicine, Japanese Red Cross Himeji Hospital, Himeji, Japan
| | - K Joko
- Hepato-biliary Center, Japanese Red Cross Matsuyama Hospital, Matsuyama, Japan
| | - H Iijima
- Department of Internal medicine, Division of Gastroenterology and Hepatology, Hyogo College of Medicine, Nishinomiya, Japan
| | - Y Hiasa
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - F Pedica
- Department of Experimental Oncology, Pathology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - F De Cobelli
- School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
| | - F Ratti
- Hepatobiliary Surgery Division, Liver Center, Vita-Salute San Raffaele University, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - L Aldrighetti
- Hepatobiliary Surgery Division, Liver Center, Vita-Salute San Raffaele University, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - M Kudo
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Higashi-Osaka, Japan
| | - S Cascinu
- Department of Oncology, Vita-Salute San Raffaele University, IRCCS San Raffaele Scientific Institute Hospital, Milan, Italy
| | - A Casadei-Gardini
- Department of Oncology, Vita-Salute San Raffaele University, IRCCS San Raffaele Scientific Institute Hospital, Milan, Italy.
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Tamiya M, Goto Y, Kenmotsu H, Kurata T, Murakami S, Yanagitani N, Taniguchi H, Kuyama S, Shimizu J, Yokoyama T, Shimada N, T. M, Tamiya A, Uchiyama A, Imaizumi K, Takahama T, Nishio M, Hayashi H, Shiraiwa N, Okura M, Kikkawa H, Thomaidou D, Kato T. EP08.02-115 A Retrospective, Multicenter, Observational Study to Evaluate Outcomes With Lorlatinib After Alectinib in ALK+ NSCLC in Japan. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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9
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Abstract
Various DNA assembly techniques and structures have emerged with the continuous progress of DNA nanotechnology. DNA hybridization chain reaction (HCR) is a representative example owing to isothermal and enzyme-free features. However, HCR is time consuming and is inhibited by nucleases present in biological samples. Herein, we demonstrated that a cationic copolymer, poly(l-lysine)-graft-dextran (PLL-g-Dex), significantly facilitated HCR and increased its initiator sensitivity by 40-fold. PLL-g-Dex promoted the generation of HCR products with high molecular weight by accelerating the initiation and the subsequent growth steps of HCR. Moreover, PLL-g-Dex protected the HCR system from nucleases, permitting HCR in the presence of serum components. Addition of PLL-g-Dex is a universal and efficient strategy that does not require optimization of the reactor setup or DNA sequences, thus laying a solid foundation for the wider application of HCR.
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Affiliation(s)
- Jun Wang
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho 4259 B-57, Midori, Yokohama 226-8501, Japan
| | - Naohiko Shimada
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho 4259 B-57, Midori, Yokohama 226-8501, Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta-cho 4259 B-57, Midori, Yokohama 226-8501, Japan
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Tanaka Y, Niu CH, Sasaki T, Nomura S, Maruyama A, Shimada N. Smart Protein Refolding System Based on UCST-Type Ureido Polymers. Biomacromolecules 2022; 23:3860-3865. [DOI: 10.1021/acs.biomac.2c00694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yamato Tanaka
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Chun Hao Niu
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Taira Sasaki
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Shouhei Nomura
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Naohiko Shimada
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
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11
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Kojima A, Nakao J, Shimada N, Yoshida N, Abe Y, Mikame Y, Yamamoto T, Wada T, Maruyama A, Yamayoshi A. Selective Photo-Crosslinking Detection of Methylated Cytosine in DNA Duplex Aided by a Cationic Comb-Type Copolymer. ACS Biomater Sci Eng 2022; 8:1799-1805. [PMID: 35263539 DOI: 10.1021/acsbiomaterials.2c00048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In the process of cell development and differentiation, C-5-methylation of cytosine (5-methylcytosine: 5-mC) in genome DNA is an important transcriptional regulator that switches between differentiated and undifferentiated states. Further, abnormal DNA methylations are often present in tumor suppressor genes and are associated with many diseases. Therefore, 5-mC detection technology is an important tool in the most exciting fields of molecular biology and diagnosing diseases such as cancers. In this study, we found a novel photo-crosslinking property of psoralen-conjugated oligonucleotide (Ps-Oligo) to the double-stranded DNA (ds-DNA) containing 5-mC in the presence of a cationic comb-type copolymer, poly(allylamine)-graft-dextran (PAA-g-Dex). Photo-crosslinking efficiency of Ps-Oligo to 5-mC in ds-DNA was markedly enhanced in the presence of PAA-g-Dex, permitting 5-mC-targeted crosslinking. We believe that the combination of PAA-g-Dex and Ps-Oligo will be an effective tool for detecting 5-mC in genomic DNA.
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Affiliation(s)
- Atsuhiro Kojima
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki-shi, Nagasaki 852-8521, Japan
| | - Juki Nakao
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki-shi, Nagasaki 852-8521, Japan
| | - Naohiko Shimada
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Naoki Yoshida
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Yota Abe
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Yu Mikame
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki-shi, Nagasaki 852-8521, Japan
| | - Tsuyoshi Yamamoto
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki-shi, Nagasaki 852-8521, Japan
| | - Takehiko Wada
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan.,The Thomas N. Sato BioMEC-X Laboratories, Advanced Telecommunications Research Institute International (ATR), Hikaridai, Seika-cho, Soraku-gun, Kyoto 619-0288, Japan
| | - Asako Yamayoshi
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki-shi, Nagasaki 852-8521, Japan.,PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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12
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Rimini M, Kudo M, Tada T, Shigeo S, Kang W, Suda G, Jefremow A, Burgio V, Iavarone M, Tortora R, Marra F, Lonardi S, Tamburini E, Piscaglia F, Masi G, Cabibbo G, Foschi FG, Silletta M, Kumada T, Iwamoto H, Aoki T, Goh MJ, Sakamoto N, Siebler J, Hiraoka A, Niizeki T, Ueshima K, Sho T, Atsukawa M, Hirooka M, Tsuji K, Ishikawa T, Takaguchi K, Kariyama K, Itobayashi E, Tajiri K, Shimada N, Shibata H, Ochi H, Yasuda S, Toyoda H, Fukunishi S, Ohama H, Kawata K, Tani J, Nakamura S, Nouso K, Tsutsui A, Nagano T, Takaaki T, Itokawa N, Okubo T, Arai T, Imai M, Joko K, Koizumi Y, Hiasa Y, Cucchetti A, Ratti F, Aldrighetti L, Cascinu S, Casadei-Gardini A. Nonalcoholic steatohepatitis in hepatocarcinoma: new insights about its prognostic role in patients treated with lenvatinib. ESMO Open 2021; 6:100330. [PMID: 34847382 PMCID: PMC8710492 DOI: 10.1016/j.esmoop.2021.100330] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/31/2021] [Accepted: 11/03/2021] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) treatment remains a big challenge in the field of oncology. The liver disease (viral or not viral) underlying HCC turned out to be crucial in determining the biologic behavior of the tumor, including its response to treatment. The aim of this analysis was to investigate the role of the etiology of the underlying liver disease in survival outcomes. PATIENTS AND METHODS We conducted a multicenter retrospective study on a large cohort of patients treated with lenvatinib as first-line therapy for advanced HCC from both Eastern and Western institutions. Univariate and multivariate analyses were performed. RESULTS Among the 1232 lenvatinib-treated HCC patients, 453 (36.8%) were hepatitis C virus positive, 268 hepatitis B virus positive (21.8%), 236 nonalcoholic steatohepatitis (NASH) correlate (19.2%) and 275 had other etiologies (22.3%). The median progression-free survival (mPFS) was 6.2 months [95% confidence interval (CI) 5.9-6.7 months] and the median overall survival (mOS) was 15.8 months (95% CI 14.9-17.2 months). In the univariate analysis for OS NASH-HCC was associated with longer mOS [22.2 versus 15.1 months; hazard ratio (HR) 0.69; 95% CI 0.56-0.85; P = 0.0006]. In the univariate analysis for PFS NASH-HCC was associated with longer mPFS (7.5 versus 6.5 months; HR 0.84; 95% CI 0.71-0.99; P = 0.0436). The multivariate analysis confirmed NASH-HCC (HR 0.64; 95% CI 0.48-0.86; P = 0.0028) as an independent prognostic factor for OS, along with albumin-bilirubin (ALBI) grade, extrahepatic spread, neutrophil-to-lymphocyte ratio, portal vein thrombosis, Eastern Cooperative Oncology Group (ECOG) performance status and alpha-fetoprotein. An interaction test was performed between sorafenib and lenvatinib cohorts and the results highlighted the positive predictive role of NASH in favor of the lenvatinib arm (P = 0.0047). CONCLUSION NASH has been identified as an independent prognostic factor in a large cohort of patients with advanced HCC treated with lenvatinib, thereby suggesting the role of the etiology in the selection of patients for tyrosine kinase treatment. If validated, this result could provide new insights useful to improve the management of these patients.
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Affiliation(s)
- M Rimini
- Department of Oncology and Hematology, Division of Oncology, University of Modena and Reggio Emilia, Modena, Italy
| | - M Kudo
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Higashi-osaka, Japan
| | - T Tada
- Department of Internal Medicine, Japanese Red Cross Himeji Hospital, Himeji, Japan
| | - S Shigeo
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - W Kang
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology (SAIHST), Sungkyunkwan University, Seoul, Korea
| | - G Suda
- Department of Gastroenterology and Hepatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - A Jefremow
- Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nuremberg, Erlangen, Germany; Deutsches Zentrum Immuntherapie (DZI), Erlangen, Germany
| | - V Burgio
- Department of Oncology, IRCCS San Raffaele Scientific Institute Hospital, Milan, Italy
| | - M Iavarone
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano, Division of Gastroenterology and Hepatology, Milan, Italy
| | - R Tortora
- Liver Unit, Department of Transplantation, Cardarelli Hospital, Naples, Italy
| | - F Marra
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - S Lonardi
- Medical Oncology Unit 3, Department of Oncology, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - E Tamburini
- Department of Medical Oncology, Card. G. Panico Hospital of Tricase, Tricase, Italy
| | - F Piscaglia
- Division of Internal Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - G Masi
- Unit of Medical Oncology, Pisa University Hospital, Pisa, Italy
| | - G Cabibbo
- Section of Gastroenterology & Hepatology, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, PROMISE, University of Palermo, Palermo, Italy
| | - F G Foschi
- Azienda Unità Sanitaria della Romagna, Ospedale degli Infermi, Faenza, Italy
| | - M Silletta
- Medical Oncology Unit, University Campus Bio-Medico, Rome, Italy
| | - T Kumada
- Faculty of Nursing, Gifu Kyoritsu University, Ogaki, Japan
| | - H Iwamoto
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - T Aoki
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Higashi-osaka, Japan
| | - M J Goh
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - N Sakamoto
- Department of Gastroenterology and Hepatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - J Siebler
- Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nuremberg, Erlangen, Germany; Deutsches Zentrum Immuntherapie (DZI), Erlangen, Germany
| | - A Hiraoka
- Gastroenterology Center, Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - T Niizeki
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - K Ueshima
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Higashi-osaka, Japan
| | - T Sho
- Department of Gastroenterology and Hepatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - M Atsukawa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - M Hirooka
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Matsuyama, Japan
| | - K Tsuji
- Center of Gastroenterology, Teine Keijinkai Hospital, Sapporo, Japan
| | - T Ishikawa
- Department of Gastroenterology, Saiseikai Niigata Hospital, Niigata, Japan
| | - K Takaguchi
- Department of Hepatology, Kagawa Prefectural Central Hospital, Takamatsu, Japan
| | - K Kariyama
- Department of Gastroenterology, Okayama City Hospital, Okayama, Japan
| | - E Itobayashi
- Department of Gastroenterology, Asahi General Hospital, Asahi, Japan
| | - K Tajiri
- Department of Gastroenterology, Toyama University Hospital, Toyama, Japan
| | - N Shimada
- Division of Gastroenterology and Hepatology, Otakanomori Hospital, Kashiwa, Japan
| | - H Shibata
- Department of Gastroenterology, Tokushima Prefectural Central Hospital, Tokushima, Japan
| | - H Ochi
- Hepato-biliary Center, Matsuyama Red Cross Hospital, Matsuyama, Japan
| | - S Yasuda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan
| | - H Toyoda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan
| | - S Fukunishi
- Second Department of Internal Medicine, Osaka Medical College, Takatsuki, Japan
| | - H Ohama
- Second Department of Internal Medicine, Osaka Medical College, Takatsuki, Japan
| | - K Kawata
- Hepatology Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - J Tani
- Department of Gastroenterology and Neurology, Kagawa University School of Medicine, Kagawa, Japan
| | - S Nakamura
- Department of Internal Medicine, Japanese Red Cross Himeji Hospital, Himeji, Japan
| | - K Nouso
- Department of Gastroenterology, Okayama City Hospital, Okayama, Japan
| | - A Tsutsui
- Department of Hepatology, Kagawa Prefectural Central Hospital, Takamatsu, Japan
| | - T Nagano
- Department of Hepatology, Kagawa Prefectural Central Hospital, Takamatsu, Japan
| | - T Takaaki
- Gastroenterology Center, Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - N Itokawa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - T Okubo
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - T Arai
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan
| | - M Imai
- Department of Gastroenterology, Saiseikai Niigata Hospital, Niigata, Japan
| | - K Joko
- Gastroenterology Center, Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - Y Koizumi
- Gastroenterology Center, Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - Y Hiasa
- Gastroenterology Center, Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - A Cucchetti
- Department of Medical and Surgical Sciences-DIMEC, Alma Mater Studiorum - University of Bologna, Bologna, Italy; Department of Surgery, Morgagni - Pierantoni Hospital, Forlì, Italy
| | - F Ratti
- Hepatobiliary Surgery Division, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - L Aldrighetti
- Hepatobiliary Surgery Division, IRCCS San Raffaele Scientific Institute, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - S Cascinu
- Vita-Salute San Raffaele University, Milan, Italy; Department of Oncology, IRCCS San Raffaele Scientific Institute Hospital, Milan, Italy
| | - A Casadei-Gardini
- Department of Oncology, IRCCS San Raffaele Scientific Institute Hospital, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy.
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Araki H, Hagiwara S, Shinomiya R, Momotake A, Kotani H, Kojima T, Ochiai T, Shimada N, Maruyama A, Yamamoto Y. A cationic copolymer as a cocatalyst for a peroxidase-mimicking heme-DNAzyme. Biomater Sci 2021; 9:6142-6152. [PMID: 34346413 DOI: 10.1039/d1bm00949d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Heme binds to a parallel-stranded G-quadruplex DNA to form a peroxidase-mimicking heme-DNAzyme. An interpolyelectrolyte complex between the heme-DNAzyme and a cationic copolymer possessing protonated amino groups was characterized and the peroxidase activity of the complex was evaluated to elucidate the effect of the polymer on the catalytic activity of the heme-DNAzyme. We found that the catalytic activity of the heme-DNAzyme is enhanced through the formation of the interpolyelectrolyte complex due to the general acid catalysis of protonated amino groups of the polymer, enhancing the formation of the iron(iv)oxo porphyrin π-cation radical intermediate known as Compound I. This finding indicates that the polymer with protonated amino groups can act as a cocatalyst for the heme-DNAzyme in the oxidation catalysis. We also found that the enhancement of the activity of the heme-DNAzyme by the polymer depends on the local heme environment such as the negative charge density in the proximity of the heme and substrate accessibility to the heme. These findings provide novel insights as to molecular design of the heme-DNAzyme for enhancing its catalytic activity.
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Affiliation(s)
- Haruka Araki
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Shota Hagiwara
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Ryosuke Shinomiya
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Atsuya Momotake
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Hiroaki Kotani
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Takahiko Kojima
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
| | - Takuro Ochiai
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama 226-8501, Japan
| | - Naohiko Shimada
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama 226-8501, Japan
| | - Atsushi Maruyama
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama 226-8501, Japan
| | - Yasuhiko Yamamoto
- Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan and Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, Tsukuba 305-8571, Japan
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Takenaka T, Sakamoto W, Takahashi S, Shimada N, Maruyama A. Spatially regulated activation of membrane fusogenic peptides with chaperone-like ionic copolymers. J Control Release 2021; 330:463-469. [PMID: 33359738 DOI: 10.1016/j.jconrel.2020.12.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 12/17/2020] [Accepted: 12/17/2020] [Indexed: 11/29/2022]
Abstract
Controlled or targeted membrane lysis induced by cascades of assembly and activation of biomolecules on membrane surfaces is important in programmed cell death and host defense systems. In a previous study, we reported that an ionic graft copolymer with a polycation backbone and water-soluble graft chains, poly(allylamine)-graft-dextran (PAA-g-Dex) chaperoned folding and assembly of E5, a membrane-destructive peptide derived from influenza hemagglutinin, to its increase membrane-disruptive activity. In this study, we modified the copolymer with long acyl chains, which resulted in delivery of the copolymer to membrane surfaces of liposomes and living cells. The liposomes with PAA-g-Dex functionalized with stearic acid (PAA-g-Dex-SA) on their surfaces underwent vesicle-to-sheet conversion upon addition of E5, whereas control liposomes did not. E5 also induced selective lysis of cells incubated with PAA-g-Dex-SA. The spatially specific activation of E5 on target membrane surfaces driven by self-assembly of copolymer and activation of E5 should find application in lipid-based delivery devices and cell-based therapeutics.
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Affiliation(s)
- Tomoka Takenaka
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57, Nagatsuta, Midori, Yokohama 226-8501, Japan
| | - Wakako Sakamoto
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57, Nagatsuta, Midori, Yokohama 226-8501, Japan
| | - Shutaro Takahashi
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57, Nagatsuta, Midori, Yokohama 226-8501, Japan
| | - Naohiko Shimada
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57, Nagatsuta, Midori, Yokohama 226-8501, Japan
| | - Atsushi Maruyama
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57, Nagatsuta, Midori, Yokohama 226-8501, Japan.
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15
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Ikeuchi N, Komachi T, Murayama K, Asanuma H, Maruyama A, Shimada N. Light-Regulated Liquid-Liquid Phase Separation for Spatiotemporal Protein Recruitment and Cell Aggregation. ACS Appl Mater Interfaces 2021; 13:5652-5659. [PMID: 33478213 DOI: 10.1021/acsami.0c22314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We have previously shown that the upper critical solution temperature-type thermoresponsive ureido polymers such as polyallylurea and poly(2-ureidoethylmethacrylate) derivatives show liquid-liquid phase separation (LLPS), also known as simple coacervation, under physiological conditions below their phase-separation temperatures (Tp). The addition of the polymer-rich coacervate droplets that result from LLPS to a monolayer cell culture induced aggregation of cells into multicellular spheroids. In this study, we prepared a ureido copolymer, poly(vinylamine-co-vinylurea), with azobenzene substituents (Azo-PVU) and demonstrated light-guided assembly and disassembly of LLPS coacervates. Azo-PVUs with Tp values ranging from 10 to 52 °C were prepared by changing the azobenzene content. Ultraviolet light caused a decrease in the Tp of Azo-PVU because of trans-to-cis photoisomerization of the azobenzene and irradiation with visible light increased the Tp. Thus, LLPS of Azo-PVU was reversibly controlled. The coacervate droplets deposited on a dish surface were immediately dissolved by targeted UV irradiation (owing to a decrease in the Tp). Spatially controlled recruitment of proteins on the dish surface was achieved when protein solution was added to the light-patterned surface. Furthermore, the light-guided deposition of coacervates resulted in the spatiotemporal transformation of monolayer cells to aggregates. This light-controlled LLPS will allow the preparation of novel liquid-based materials for biomolecular and cellular engineering.
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Affiliation(s)
- Nao Ikeuchi
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Takuya Komachi
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Keiji Murayama
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Hiroyuki Asanuma
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Naohiko Shimada
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
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Komachi T, Maruyama A, Shimada N. Evaluation of Cooling-Induced Liquid-Liquid Phase Separation of Ureido Polymers as a Cold-Shock Stress Granules Model. Macromol Biosci 2021; 21:e2000345. [PMID: 33448121 DOI: 10.1002/mabi.202000345] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 12/09/2020] [Indexed: 12/31/2022]
Abstract
Many intracellular reactions occur in membrane-less organelles that form due to liquid-liquid phase separation (LLPS). Cold-shock stress granules, which are membrane-less organelles, are formed in response to a significant decrease in temperature and recruit biomolecules for regulation of their activities. The authors have reported that synthetic ureido copolymers exhibit cooling-induced LLPS under physiologically relevant conditions. In this study, influences of the cooling-induced LLPS of ureido polymers on enzymatic activity is investigated to evaluate whether the ureido polymers can mimic cold-shock stress granules. The enzyme β-galactosidase (β-Gal) is efficiently entrapped into phase-separated coacervates of ureido polymers upon cooling. The activity of β-Gal is significantly suppressed by the entrapment. The enzymatic activity is recovered after heating, which dissolves the coacervate. Thus, the LLPS formed by ureido polymers are a suitable model for cold-shock stress granules.
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Affiliation(s)
- Takuya Komachi
- Tokyo Institute of Technology, 4259 B-57, Nagatsuta-cho, Midori-ku, Yokohama, 226-8501, Japan
| | - Atsushi Maruyama
- Tokyo Institute of Technology, 4259 B-57, Nagatsuta-cho, Midori-ku, Yokohama, 226-8501, Japan
| | - Naohiko Shimada
- Tokyo Institute of Technology, 4259 B-57, Nagatsuta-cho, Midori-ku, Yokohama, 226-8501, Japan
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17
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Kato S, Furukawa S, Aoki D, Goseki R, Oikawa K, Tsuchiya K, Shimada N, Maruyama A, Numata K, Otsuka H. Crystallization-induced mechanofluorescence for visualization of polymer crystallization. Nat Commun 2021; 12:126. [PMID: 33402691 PMCID: PMC7785725 DOI: 10.1038/s41467-020-20366-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 11/24/2020] [Indexed: 11/09/2022] Open
Abstract
The growth of lamellar crystals has been studied in particular for spherulites in polymeric materials. Even though such spherulitic structures and their growth are of crucial importance for the mechanical and optical properties of the resulting polymeric materials, several issues regarding the residual stress remain unresolved in the wider context of crystal growth. To gain further insight into micro-mechanical forces during the crystallization process of lamellar crystals in polymeric materials, herein, we introduce tetraarylsuccinonitrile (TASN), which generates relatively stable radicals with yellow fluorescence upon homolytic cleavage at the central C-C bond in response to mechanical stress, into crystalline polymers. The obtained crystalline polymers with TASN at the center of the polymer chain allow not only to visualize the stress arising from micro-mechanical forces during polymer crystallization via fluorescence microscopy but also to evaluate the micro-mechanical forces upon growing polymer lamellar crystals by electron paramagnetic resonance, which is able to detect the radicals generated during polymer crystallization.
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Affiliation(s)
- Sota Kato
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Shigeki Furukawa
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Daisuke Aoki
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Raita Goseki
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Kazusato Oikawa
- Biomacromolecules Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Kousuke Tsuchiya
- Biomacromolecules Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Naohiko Shimada
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8501, Japan
| | - Atsushi Maruyama
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8501, Japan
| | - Keiji Numata
- Biomacromolecules Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Hideyuki Otsuka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan.
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18
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Hanpanich O, Saito K, Shimada N, Maruyama A. One-step isothermal RNA detection with LNA-modified MNAzymes chaperoned by cationic copolymer. Biosens Bioelectron 2020; 165:112383. [PMID: 32729508 PMCID: PMC7836245 DOI: 10.1016/j.bios.2020.112383] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/13/2020] [Accepted: 06/08/2020] [Indexed: 12/21/2022]
Abstract
RNA detection permits early diagnosis of several infectious diseases and cancers, which prevent propagation of diseases and improve treatment efficacy. However, standard technique for RNA detection such as reverse transcription-quantitative polymerase chain reaction has complicated procedure and requires well-trained personnel and specialized lab equipment. These shortcomings limit the application for point-of-care analysis which is critical for rapid and effective disease management. The multicomponent nucleic acid enzymes (MNAzymes) are one of the promising biosensors for simple, isothermal and enzyme-free RNA detection. Herein, we demonstrate simple yet effective strategies that significantly enhance analytical performance of MNAzymes. The addition of the cationic copolymer and structural modification of MNAzyme significantly enhanced selectivity and activity of MNAzymes by 250 fold and 2,700 fold, respectively. The highly simplified RNA detection system achieved a detection limit of 73 fM target concentration without additional amplification. The robustness of MNAzyme in the presence of non-target RNA was also improved. Our finding opens up a route toward the development of an alternative rapid, sensitive, isothermal, and protein-free RNA diagnostic tool, which expected to be of great clinical significance.
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Affiliation(s)
- Orakan Hanpanich
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta 4259 B-57, Yokohama, 226-8501, Japan
| | - Ken Saito
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta 4259 B-57, Yokohama, 226-8501, Japan
| | - Naohiko Shimada
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta 4259 B-57, Yokohama, 226-8501, Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta 4259 B-57, Yokohama, 226-8501, Japan.
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19
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Fujii S, Kuroyanagi S, Shimada N, Matsuno J, Lee JH, Takahashi R, Maruyama A, Sakurai K. Bundling Process of Citrulline Polypeptides upon UCST-Type Phase Separation. J Phys Chem B 2020; 124:4036-4043. [PMID: 32311261 DOI: 10.1021/acs.jpcb.0c00934] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ureido-modified poly(l-citrulline) (l-ornithine-co-l-citrulline denoted by PlOC) shows UCST-type phase separation behavior even under physiologically relevant conditions, which forms an α-helix structure above its phase separation temperature (Tp) but transforms into a solid-like aggregation composed of regular hexagonal packed cylinders below the Tp. This morphological transformation is characteristic of the phase separation behavior, but the mechanism behind it has remained incompletely understood. Here, we studied the phase separation behavior using small-angle X-ray scattering (SAXS) measurements. To analyze the SAXS data, we employed the modified unified model proposed previously, which decomposes the scattering profile into each structural element, such as the α-helices and their aggregation formed via hydrogen-bonding interactions between the ureido groups. The aggregation level is dependent on the temperature (T) and grouped into three classes: (1) mass-fractal aggregation composed of the α-helix (T > Tp), (2) spherical aggregation composed of the hexagonal packed cylinder (T < Tp), and (3) micro-order agglomeration formed by mutual fusion of the spherical aggregation, which appears as a solid-like aggregation. The SAXS analysis suggested that the transformation from the dispersed state as the α-helix to the agglomeration containing hierarchical structures occurs in a stepwise manner when the temperature falls below the Tp, which might also be transition behavior similar to the process of protein folding through folding intermediates.
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Affiliation(s)
- Shota Fujii
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu-City, Fukuoka 808-0135, Japan
| | - Sotaro Kuroyanagi
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57, Nagatsuta, Yokohama 226-8501, Japan
| | - Naohiko Shimada
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57, Nagatsuta, Yokohama 226-8501, Japan
| | - Jun Matsuno
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu-City, Fukuoka 808-0135, Japan
| | - Ji Ha Lee
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu-City, Fukuoka 808-0135, Japan
| | - Rintaro Takahashi
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu-City, Fukuoka 808-0135, Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57, Nagatsuta, Yokohama 226-8501, Japan
| | - Kazuo Sakurai
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu-City, Fukuoka 808-0135, Japan
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20
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Rudeejaroonrung K, Hanpanich O, Saito K, Shimada N, Maruyama A. Cationic copolymer enhances 8–17 DNAzyme and MNAzyme activities. Biomater Sci 2020; 8:3812-3818. [DOI: 10.1039/d0bm00428f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Cationic copolymer acts as a chaperone to facilitate multiple strand assembly and enhance nucleic acid enzyme activities.
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Affiliation(s)
| | - Orakan Hanpanich
- School of Life Science and Technology
- Tokyo Institute of Technology
- Yokohama
- Japan
| | - Ken Saito
- School of Life Science and Technology
- Tokyo Institute of Technology
- Yokohama
- Japan
| | - Naohiko Shimada
- School of Life Science and Technology
- Tokyo Institute of Technology
- Yokohama
- Japan
| | - Atsushi Maruyama
- School of Life Science and Technology
- Tokyo Institute of Technology
- Yokohama
- Japan
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21
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Shimada N, Kinoshita H, Umegae T, Azumai S, Kume N, Ochiai T, Takenaka T, Sakamoto W, Yamada T, Furuta T, Masuda T, Sakurai M, Higuchi H, Maruyama A. Cationic Copolymer-Chaperoned 2D-3D Reversible Conversion of Lipid Membranes. Adv Mater 2019; 31:e1904032. [PMID: 31550402 DOI: 10.1002/adma.201904032] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 09/06/2019] [Indexed: 06/10/2023]
Abstract
Nanosheets have thicknesses on the order of nanometers and planar dimensions in the micrometer range. Nanomaterials that are capable of converting reversibly between 2D nanosheets and 3D structures in response to specific triggers can enable construction of nanodevices. Supra-molecular lipid nanosheets and their triggered conversions to 3D structures including vesicles and cups are reported. They are produced from lipid vesicles upon addition of amphiphilic peptides and cationic copolymers that act as peptide chaperones. By regulation of the chaperoning activity of the copolymer, 2D to 3D conversions are reversibly triggered, allowing tuning of lipid bilayer structures and functionalities.
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Affiliation(s)
- Naohiko Shimada
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
| | - Hirotaka Kinoshita
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
| | - Takuma Umegae
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
| | - Satomi Azumai
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
| | - Nozomi Kume
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
| | - Takuro Ochiai
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
| | - Tomoka Takenaka
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
| | - Wakako Sakamoto
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
| | - Takayoshi Yamada
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
| | - Tadaomi Furuta
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
| | - Tsukuru Masuda
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
| | - Minoru Sakurai
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
| | - Hideo Higuchi
- Department of Physics, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyou-ku, Tokyo, 113-0033, Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
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22
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Hanpanich O, Miyaguchi H, Huang H, Shimada N, Maruyama A. Cationic copolymer-chaperoned short-armed 10-23 DNAzymes. Nucleosides Nucleotides Nucleic Acids 2019; 39:156-169. [PMID: 31608816 DOI: 10.1080/15257770.2019.1675168] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The cationic copolymer poly(L-lysine)-graft-dextran (PLL-g-Dex) has nucleic acid chaperone-like activity. The copolymer facilitates both DNA hybridization and strand exchange reactions. For these reasons, DNA-based enzyme (DNAzyme) activity is enhanced in the presence of copolymer. In this study, we evaluated activities of DNAzymes with substrate-binding arms (S-arms) of various lengths. The copolymer promoted DNAzyme reactivity and turnover efficacy, and, depending on S-arm length, maximally accelerated the reaction rate by 250-fold compared to the rate in the absence of copolymer. The copolymer permitted up to six nucleotides truncation of the S-arms having initial length of 10 and 11 nucleotides without loss of catalytic efficiency, enable tuning of the optimal temperature ranging from 30 to 55 °C. The approach might be useful for the development of DNAzyme systems targeting short or highly structured RNAs as well for improvement of DNAzyme-based nanomachines and biosensors.
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Affiliation(s)
- Orakan Hanpanich
- Department of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
| | - Hitonari Miyaguchi
- Department of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
| | - He Huang
- Department of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
| | - Naohiko Shimada
- Department of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
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23
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Hanpanich O, Oyanagi T, Shimada N, Maruyama A. Cationic copolymer-chaperoned DNAzyme sensor for microRNA detection. Biomaterials 2019; 225:119535. [PMID: 31614289 DOI: 10.1016/j.biomaterials.2019.119535] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 10/01/2019] [Accepted: 10/02/2019] [Indexed: 02/08/2023]
Abstract
Multi-component nucleic acid enzymes (MNAzymes) are allosteric deoxyribozymes that are activated upon binding of a specific nucleic acid effector. MNAzyme activity is limited due to an insufficient assembly of the MNAzyme and its turnover. In this work, we describe the successful improvement of MNAzyme reactivity and selectivity by addition of cationic copolymers, which exhibit nucleic acid chaperone-like activity. The copolymer allowed a 210-fold increase in signal activity and a 95-fold increase in the signal-to-background selectivity of MNAzymes constructed for microRNA (miRNA) detection. The selectivity of the MNAzyme for homologous miRNAs was demonstrated in a multiplex format in which isothermal reactions of two different MNAzymes were performed. In addition, the copolymer permitted miRNA detections even in the presence of a ribonuclease which is ubiquitous in environments, indicating the protective effect of the copolymer against ribonucleases.
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Affiliation(s)
- Orakan Hanpanich
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta 4259 B-57, Yokohama, 226-8501, Japan
| | - Tomoya Oyanagi
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta 4259 B-57, Yokohama, 226-8501, Japan
| | - Naohiko Shimada
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta 4259 B-57, Yokohama, 226-8501, Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology, Tokyo Institute of Technology, Nagatsuta 4259 B-57, Yokohama, 226-8501, Japan.
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24
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Tokito T, Ko R, Imamura C, Shukuya T, Shimada N, Koyama R, Yamada K, Ishii H, Azuma K, Takahashi K. P1.14-30 Phase I Study of Afatinib Plus Bevacizumab in Patients with Advanced Non-Small Cell Lung Cancer Harboring EGFR Mutations. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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25
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Kawakami K, Koyama Y, Morioka M, Tobaru Y, Sakura Y, Fukumoto M, Nagamine A, Hattori K, Taira I, Shimada N, Okuno E, Tsuyuki S, Kanazawa A. Compression therapy of both hands is safely applicable for the prevention of oxaliplatin-induced neuropathy. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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26
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Ohshio M, Ishihara K, Maruyama A, Shimada N, Yusa SI. Synthesis and Properties of Upper Critical Solution Temperature Responsive Nanogels. Langmuir 2019; 35:7261-7267. [PMID: 31035754 DOI: 10.1021/acs.langmuir.9b00849] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A random copolymer ((U/A10)165) bearing pendent ureido groups and a small amount (10 mol %) of primary amino groups exhibits an upper critical solution temperature (UCST). We prepared a diblock copolymer (PMPC20P(U/A10)165) composed of water-soluble poly(2-methacryloyloxyethyl phosphorylcholine) (PMPC) and (U/A10)165 blocks via reversible addition-fragmentation chain-transfer radical polymerization with postmodification reaction. The subnumbers are the degrees of polymerization of each block. Although in water PMPC20P(U/A10)165 dissolves as a unimer above the UCST phase transition temperature ( Tp), it forms polymer micelles composed of dehydrated (U/A10)165 cores and hydrophilic PMPC shells. A nanogel was prepared by cross-linking the pendent primary amines in the micelle core using (hydroxymethyl)phosphonium chloride below Tp. NMR and light-scattering data indicated that the nanogel core shrinks upon dehydration below Tp and swells upon hydration above Tp. The nanogel can encapsulate guest molecules such as hydrophobic fluorescence probes and bovine serum albumin (BSA) below Tp mainly owing to hydrophobic interactions in the core. Encapsulated BSA can be held in the nanogel core below Tp and subsequently released above Tp.
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Affiliation(s)
- Maho Ohshio
- Department of Applied Chemistry, Graduate School of Engineering , University of Hyogo , 2167 Shosha , Himeji , Hyogo 671-2280 , Japan
| | - Kazuhiko Ishihara
- Department of Materials Engineering, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku Tokyo 113-8656 , Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology , Tokyo Institute of Technology , 4259 B-57 Nagatsuta , Midori, Yokohama 226-8501 , Japan
| | - Naohiko Shimada
- Department of Life Science and Technology , Tokyo Institute of Technology , 4259 B-57 Nagatsuta , Midori, Yokohama 226-8501 , Japan
| | - Shin-Ichi Yusa
- Department of Applied Chemistry, Graduate School of Engineering , University of Hyogo , 2167 Shosha , Himeji , Hyogo 671-2280 , Japan
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27
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Abstract
Liposomes are self-assembled vesicles of amphiphilic lipid molecules, which have been investigated as models of cells, or tools for drug delivery systems. In these systems, the surface property of the liposomes plays an important role. In this study, we demonstrated a novel polymer modification of liposome surfaces using a controlled radical polymerization, "activators regenerated by electron transfer for atom transfer radical polymerization", in aqueous media without a deoxygenation step. Dynamic light scattering and 1H NMR measurement indicated the successful modification of the polymer on the liposome surface. The molecular weight of the grafted polymer chain was systematically controlled by changing the monomer concentrations in the "grafting from" polymerization. Moreover, the modification resulted in a notable increase in surface softness as indicated by electrophoretic behavior, which was comparable to the surface of cells. The preparation method and the characterization presented in this study would be a helpful guideline in designing the polymer/liposome hybrid having target surface properties.
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Affiliation(s)
- Tsukuru Masuda
- School of Life Science and Technology , Tokyo Institute of Technology , B-57 4259 Nagatsuta-cho , Midori-ku, Yokohama , Kanagawa 226-8501 , Japan
| | - Naohiko Shimada
- School of Life Science and Technology , Tokyo Institute of Technology , B-57 4259 Nagatsuta-cho , Midori-ku, Yokohama , Kanagawa 226-8501 , Japan
| | - Atsushi Maruyama
- School of Life Science and Technology , Tokyo Institute of Technology , B-57 4259 Nagatsuta-cho , Midori-ku, Yokohama , Kanagawa 226-8501 , Japan
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28
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Sakamoto W, Masuda T, Ochiai T, Shimada N, Maruyama A. Cationic Copolymers Act As Chaperones of a Membrane-Active Peptide: Influence on Membrane Selectivity. ACS Biomater Sci Eng 2019; 5:5744-5751. [DOI: 10.1021/acsbiomaterials.8b01582] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wakako Sakamoto
- School of Life Science and Technology, Tokyo Institute of Technology, B-57 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Tsukuru Masuda
- School of Life Science and Technology, Tokyo Institute of Technology, B-57 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Takuro Ochiai
- School of Life Science and Technology, Tokyo Institute of Technology, B-57 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Naohiko Shimada
- School of Life Science and Technology, Tokyo Institute of Technology, B-57 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Atsushi Maruyama
- School of Life Science and Technology, Tokyo Institute of Technology, B-57 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
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29
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Cheng B, Kashida H, Shimada N, Maruyama A, Asanuma H. Photo-regulatable DNA isothermal amplification by template-mediated ligation. Chem Commun (Camb) 2019; 55:1080-1083. [PMID: 30617360 DOI: 10.1039/c8cc09218d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
By combining azobenzene-tethered oligonucleotides as modulators and poly(l-lysine)-graft-dextran (PLL-g-Dex), a chaperone polymer, to facilitate strand displacement, we successfully developed a photo-regulatable DNA isothermal amplification method. By alternating UV and visible irradiation, linear amplification was achieved. The method enables photo-regulatability and mismatch discrimination in linear amplification of the DNA target.
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Affiliation(s)
- Bohao Cheng
- Department of Bio molecular Engineering, Graduate School of Engineering, Nagoya University Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
| | - Hiromu Kashida
- Department of Bio molecular Engineering, Graduate School of Engineering, Nagoya University Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
| | - Naohiko Shimada
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, Kanagawa 266-8501, Japan.
| | - Atsushi Maruyama
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, Kanagawa 266-8501, Japan.
| | - Hiroyuki Asanuma
- Department of Bio molecular Engineering, Graduate School of Engineering, Nagoya University Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
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30
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Kuroyanagi S, Shimada N, Fujii S, Furuta T, Harada A, Sakurai K, Maruyama A. Highly Ordered Polypeptide with UCST Phase Separation Behavior. J Am Chem Soc 2018; 141:1261-1268. [DOI: 10.1021/jacs.8b10168] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sotaro Kuroyanagi
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57, Nagatsuta, Yokohama 226-8501, Japan
| | - Naohiko Shimada
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57, Nagatsuta, Yokohama 226-8501, Japan
| | - Shota Fujii
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu City, Fukuoka 808-0135, Japan
| | - Tadaomi Furuta
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57, Nagatsuta, Yokohama 226-8501, Japan
| | - Atsushi Harada
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Kazuo Sakurai
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu City, Fukuoka 808-0135, Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57, Nagatsuta, Yokohama 226-8501, Japan
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31
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Affiliation(s)
- Naohiko Shimada
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57, Nagatsuta, Yokohama 226-8501, Japan
| | - Taira Sasaki
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57, Nagatsuta, Yokohama 226-8501, Japan
| | - Takakuni Kawano
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57, Nagatsuta, Yokohama 226-8501, Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57, Nagatsuta, Yokohama 226-8501, Japan
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Abstract
SummaryIsolation of adenylate cyclase-enriched membranes from human platelets was attempted using glycerol lysis technique followed by ultracentrifugation on discontinuous sucrose gradients composed of 24, 30, 34, 37, and 41% (w/w). Adenylate cyclase activity was enriched 4-fold in sample/24% sucrose interface, 7-fold in 24%/30% sucrose interface, and 4-fold in 30%/ 34% sucrose interface fractions with the recovery of 15-20% of the total activity. The enrichment and subcellular distribution of adenylate cyclase resembled in general those of phosphodiesterase and acid phosphatase with slight differences in each other. Protein profiles from SDS-polyacrylamide gel electrophoresis showed that the heavy chain of myosin (Mr = 200,000) was enriched in sample/24% sucrose interface and lower molecular weight proteins in 34%/37% sucrose interface and pellet. The interface fractions between 24 and 34% sucrose were, therefore, collected as adenylate cyclase-enriched membranes.Adenylate cyclase associated with the membranes displayed high specific activity (0.1 and 1-2 nmol/min/mg protein in the absence and presence of stimulants, respectively), and possessed sensitivities to prostaglandins (E1, I2, and D2) as well as cholera toxin. Activation of adenylate cyclase by these compounds required added GTP, indicating that the contamination of the membrane preparations with GTP-like substance (s) was minimal, if at all present.
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Affiliation(s)
- N Shimada
- The Department of Biochemistry, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - M Tsubokura
- The Tokyo Red Cross Blood Center, Tokyo, Japan
| | - N Kimura
- The Department of Biochemistry, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
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Miyata T, Shimada N, Maruyama A, Kawai K. Cover Feature: Fluorescence Redox Blinking Adaptable to Structural Analysis of Nucleic Acids (Chem. Eur. J. 26/2018). Chemistry 2018. [DOI: 10.1002/chem.201800629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Takafumi Miyata
- Department of Life Science and Technology; Tokyo Institute of Technology; 4259 B-57 Nagatsuta, Midori-ku, Yokohama Kanagawa 226-8501 Japan
| | - Naohiko Shimada
- Department of Life Science and Technology; Tokyo Institute of Technology; 4259 B-57 Nagatsuta, Midori-ku, Yokohama Kanagawa 226-8501 Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology; Tokyo Institute of Technology; 4259 B-57 Nagatsuta, Midori-ku, Yokohama Kanagawa 226-8501 Japan
| | - Kiyohiko Kawai
- The Institute of Scientific and Industrial Research (SANKEN); Osaka University; Mihogaoka 8-1, Ibaraki Osaka 567-0047 Japan
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Sato H, Shimada N, Masuda T, Maruyama A. Allosteric Control of Peroxidase-Mimicking DNAzyme Activity with Cationic Copolymers. Biomacromolecules 2018; 19:2082-2088. [DOI: 10.1021/acs.biomac.8b00201] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Hiroki Sato
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta Midori-ku, Yokohama, Kanagawa, Japan 226-8501
| | - Naohiko Shimada
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta Midori-ku, Yokohama, Kanagawa, Japan 226-8501
| | - Tsukuru Masuda
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta Midori-ku, Yokohama, Kanagawa, Japan 226-8501
| | - Atsushi Maruyama
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta Midori-ku, Yokohama, Kanagawa, Japan 226-8501
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35
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Masuda T, Shimada N, Maruyama A. A Thermoresponsive Cationic Comb-Type Copolymer Enhances Membrane Disruption Activity of an Amphiphilic Peptide. Biomacromolecules 2018. [DOI: 10.1021/acs.biomac.8b00197] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tsukuru Masuda
- School of Life Science and Technology, Tokyo Institute of Technology, B-57
4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Naohiko Shimada
- School of Life Science and Technology, Tokyo Institute of Technology, B-57
4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Atsushi Maruyama
- School of Life Science and Technology, Tokyo Institute of Technology, B-57
4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
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36
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Miyata T, Shimada N, Maruyama A, Kawai K. Fluorescence Redox Blinking Adaptable to Structural Analysis of Nucleic Acids. Chemistry 2018; 24:6755-6761. [DOI: 10.1002/chem.201705668] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Indexed: 12/28/2022]
Affiliation(s)
- Takafumi Miyata
- Department of Life Science and Technology; Tokyo Institute of Technology; 4259 B-57 Nagatsuta, Midori-ku, Yokohama Kanagawa 226-8501 Japan
| | - Naohiko Shimada
- Department of Life Science and Technology; Tokyo Institute of Technology; 4259 B-57 Nagatsuta, Midori-ku, Yokohama Kanagawa 226-8501 Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology; Tokyo Institute of Technology; 4259 B-57 Nagatsuta, Midori-ku, Yokohama Kanagawa 226-8501 Japan
| | - Kiyohiko Kawai
- The Institute of Scientific and Industrial Research (SANKEN); Osaka University; Mihogaoka 8-1, Ibaraki Osaka 567-0047 Japan
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Wirawan A, Tajima K, Takahashi F, Hidayat M, Kanemaru R, Koinuma Y, Hayakawa D, Tajima M, Matsumoto N, Kanamori K, Takeda I, Kato M, Kobayashi I, Shimada N, Takahashi K. P2.02-012 The Epigenetic Role of LSD1+8a in Small Cell Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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38
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Hidayat M, Takahashi F, Tajima K, Nurwidya F, Wirawan A, Kanemaru R, Koinuma Y, Ihara H, Tajima M, Matsumoto N, Kanamori K, Takeda I, Haraguchi M, Hayakawa D, Ko R, Kato M, Shibayama R, Koyama R, Takahashi M, Shimada N, Takahashi K. P3.02-024 Role of FBXW7 in the Maintenance of Quiescent Cancer Stem Cells Resistant to Gefitinib in EGFR Mutation-Positive Non-Small Cell Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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39
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Nurwidya F, Takahashi F, Hidayat M, Kobayashi I, Wirawan A, Kato M, Tajima K, Shimada N, Takeda I, Tajima M, Matsumoto N, Kanemori K, Koinuma Y, Yunus F, Andarini S, Takahashi K. P1.02-065 Histone Deacetylase Inhibition Alters Stem Cell Phenotype in Gefitinib-Resistant Lung Cancer Cells with EGFR Mutation. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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40
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Kawai K, Miyata T, Shimada N, Ito S, Miyasaka H, Maruyama A. Single-Molecule Monitoring of the Structural Switching Dynamics of Nucleic Acids through Controlling Fluorescence Blinking. Angew Chem Int Ed Engl 2017; 56:15329-15333. [PMID: 28990725 PMCID: PMC5725658 DOI: 10.1002/anie.201708705] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Indexed: 01/20/2023]
Abstract
Single-molecule fluorescence resonance energy transfer (smFRET) is a powerful tool to investigate the dynamics of biomolecular events in real time. However, it requires two fluorophores and can be applied only to dynamics that accompany large changes in distance between the molecules. Herein, we introduce a method for kinetic analysis based on control of fluorescence blinking (KACB), a general approach to investigate the dynamics of biomolecules by using a single fluorophore. By controlling the kinetics of the redox reaction the blinking kinetics or pattern can be controlled to be affected by microenvironmental changes around a fluorophore (rKACB), thereby enabling real-time single-molecule measurement of the structure-changing dynamics of nucleic acids.
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Affiliation(s)
- Kiyohiko Kawai
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, 567-0047, Japan
| | - Takafumi Miyata
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, Kanagawa, 226-8501, Japan
| | - Naohiko Shimada
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, Kanagawa, 226-8501, Japan
| | - Syoji Ito
- Division of Frontier Materials Science and Center for Promotion of Advanced Interdisciplinary Research, Graduate School of Engineering Science, Osaka University, Toyonaka, 567-8531, 226-8501, Japan
| | - Hiroshi Miyasaka
- Division of Frontier Materials Science and Center for Promotion of Advanced Interdisciplinary Research, Graduate School of Engineering Science, Osaka University, Toyonaka, 567-8531, 226-8501, Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57 Nagatsuta, Midori-ku, Yokohama, Kanagawa, 226-8501, Japan
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41
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Kawai K, Miyata T, Shimada N, Ito S, Miyasaka H, Maruyama A. Single-Molecule Monitoring of the Structural Switching Dynamics of Nucleic Acids through Controlling Fluorescence Blinking. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708705] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Kiyohiko Kawai
- The Institute of Scientific and Industrial Research (SANKEN); Osaka University; Mihogaoka 8-1 Ibaraki Osaka 567-0047 Japan
| | - Takafumi Miyata
- Department of Life Science and Technology; Tokyo Institute of Technology; 4259 B-57 Nagatsuta Midori-ku, Yokohama Kanagawa 226-8501 Japan
| | - Naohiko Shimada
- Department of Life Science and Technology; Tokyo Institute of Technology; 4259 B-57 Nagatsuta Midori-ku, Yokohama Kanagawa 226-8501 Japan
| | - Syoji Ito
- Division of Frontier Materials Science and Center for Promotion of Advanced Interdisciplinary Research; Graduate School of Engineering Science; Osaka University; Toyonaka, 567-8531 226-8501 Japan
| | - Hiroshi Miyasaka
- Division of Frontier Materials Science and Center for Promotion of Advanced Interdisciplinary Research; Graduate School of Engineering Science; Osaka University; Toyonaka, 567-8531 226-8501 Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology; Tokyo Institute of Technology; 4259 B-57 Nagatsuta Midori-ku, Yokohama Kanagawa 226-8501 Japan
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42
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Cheng B, Kashida H, Shimada N, Maruyama A, Asanuma H. Cover Picture: Chaperone-Polymer-Assisted, Photodriven DNA Strand Displacement (ChemBioChem 16/2017). Chembiochem 2017. [DOI: 10.1002/cbic.201700394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Bohao Cheng
- Graduate School of Engineering; Nagoya University; Furo-cho Chikusa-ku Nagoya 464-8603 Japan
| | - Hiromu Kashida
- Graduate School of Engineering; Nagoya University; Furo-cho Chikusa-ku Nagoya 464-8603 Japan
| | - Naohiko Shimada
- Department of Biomolecular Engineering; Graduate School of Bioscience and Biotechnology; Tokyo Institute of Technology; Nagatsuta 4259 Midori-ku Yokohama 266-8501 Japan
| | - Atsushi Maruyama
- Department of Biomolecular Engineering; Graduate School of Bioscience and Biotechnology; Tokyo Institute of Technology; Nagatsuta 4259 Midori-ku Yokohama 266-8501 Japan
| | - Hiroyuki Asanuma
- Graduate School of Engineering; Nagoya University; Furo-cho Chikusa-ku Nagoya 464-8603 Japan
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43
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Masuda T, Shimada N, Sasaki T, Maruyama A, Akimoto AM, Yoshida R. Design of a Tunable Self-Oscillating Polymer with Ureido and Ru(bpy) 3
Moieties. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tsukuru Masuda
- Department of Materials Engineering; School of Engineering; The University of Tokyo; 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
- Present address: School of Life Science and Technology; Tokyo Institute of Technology; 4259 Nagatsuta-cho, Midori-ku, Yokohama Kanagawa 226-8501 Japan
| | - Naohiko Shimada
- School of Life Science and Technology; Tokyo Institute of Technology; 4259 Nagatsuta-cho, Midori-ku, Yokohama Kanagawa 226-8501 Japan
| | - Taira Sasaki
- School of Life Science and Technology; Tokyo Institute of Technology; 4259 Nagatsuta-cho, Midori-ku, Yokohama Kanagawa 226-8501 Japan
| | - Atsushi Maruyama
- School of Life Science and Technology; Tokyo Institute of Technology; 4259 Nagatsuta-cho, Midori-ku, Yokohama Kanagawa 226-8501 Japan
| | - Aya Mizutani Akimoto
- Department of Materials Engineering; School of Engineering; The University of Tokyo; 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Ryo Yoshida
- Department of Materials Engineering; School of Engineering; The University of Tokyo; 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
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44
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Cheng B, Kashida H, Shimada N, Maruyama A, Asanuma H. Chaperone-Polymer-Assisted, Photodriven DNA Strand Displacement. Chembiochem 2017; 18:1568-1572. [DOI: 10.1002/cbic.201700202] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Indexed: 01/10/2023]
Affiliation(s)
- Bohao Cheng
- Graduate School of Engineering; Nagoya University; Furo-cho Chikusa-ku Nagoya 464-8603 Japan
| | - Hiromu Kashida
- Graduate School of Engineering; Nagoya University; Furo-cho Chikusa-ku Nagoya 464-8603 Japan
| | - Naohiko Shimada
- Department of Biomolecular Engineering; Graduate School of Bioscience and Biotechnology; Tokyo Institute of Technology; Nagatsuta 4259 Midori-ku Yokohama 266-8501 Japan
| | - Atsushi Maruyama
- Department of Biomolecular Engineering; Graduate School of Bioscience and Biotechnology; Tokyo Institute of Technology; Nagatsuta 4259 Midori-ku Yokohama 266-8501 Japan
| | - Hiroyuki Asanuma
- Graduate School of Engineering; Nagoya University; Furo-cho Chikusa-ku Nagoya 464-8603 Japan
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45
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Masuda T, Shimada N, Sasaki T, Maruyama A, Akimoto AM, Yoshida R. Design of a Tunable Self-Oscillating Polymer with Ureido and Ru(bpy)3
Moieties. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/anie.201705277] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Tsukuru Masuda
- Department of Materials Engineering; School of Engineering; The University of Tokyo; 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
- Present address: School of Life Science and Technology; Tokyo Institute of Technology; 4259 Nagatsuta-cho, Midori-ku, Yokohama Kanagawa 226-8501 Japan
| | - Naohiko Shimada
- School of Life Science and Technology; Tokyo Institute of Technology; 4259 Nagatsuta-cho, Midori-ku, Yokohama Kanagawa 226-8501 Japan
| | - Taira Sasaki
- School of Life Science and Technology; Tokyo Institute of Technology; 4259 Nagatsuta-cho, Midori-ku, Yokohama Kanagawa 226-8501 Japan
| | - Atsushi Maruyama
- School of Life Science and Technology; Tokyo Institute of Technology; 4259 Nagatsuta-cho, Midori-ku, Yokohama Kanagawa 226-8501 Japan
| | - Aya Mizutani Akimoto
- Department of Materials Engineering; School of Engineering; The University of Tokyo; 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Ryo Yoshida
- Department of Materials Engineering; School of Engineering; The University of Tokyo; 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
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46
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Toyoda H, Tada T, Takaguchi K, Senoh T, Shimada N, Hiraoka A, Michitaka K, Ishikawa T, Kumada T. Differences in background characteristics of patients with chronic hepatitis C who achieved sustained virologic response with interferon-free versus interferon-based therapy and the risk of developing hepatocellular carcinoma after eradication of hepatitis C virus in Japan. J Viral Hepat 2017; 24:472-476. [PMID: 27983762 DOI: 10.1111/jvh.12665] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Accepted: 11/28/2016] [Indexed: 01/14/2023]
Abstract
We compared the background characteristics of patients with chronic hepatitis C who achieved eradication of hepatitis C virus (HCV), that is sustained virologic response (SVR), with interferon (IFN)-based versus IFN-free antiviral therapy in Japan. In addition, we used a previously reported risk assessment model to compare the incidence of hepatocellular carcinoma (HCC) after SVR by treatment type. Pretreatment characteristics of 1533 patients who achieved SVR with IFN-based therapy and 1086 patients with IFN-free therapy from five institutions across Japan were compared. The risk of HCC after SVR was assessed based on pretreatment characteristics, and the incidence of HCC after SVR was estimated in both groups. Age and serum alpha-fetoprotein levels were higher, platelet count was lower, and liver fibrosis was more advanced in patients who achieved SVR with IFN-free therapy compared with IFN-based therapy. The incidence of HCC after SVR in the IFN-free group was estimated to be more than twofold higher than in the IFN-based therapy group (7.29% vs. 3.09%, and 6.23% vs. 3.01% when excluding patients who have underwent curative treatment for HCC). There are large differences in pretreatment characteristics between patients who achieved SVR with IFN-based and IFN-free therapies in Japan, which are associated with differential risk of HCC after SVR. These differences can influence the incidence of HCC after SVR and should be taken into consideration when comparing IFN-based and IFN-free therapies in terms of hepatocarcinogenesis suppression with HCV eradication.
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Affiliation(s)
- H Toyoda
- Department of Gastroenterology, Ogaki Municipal Hospital, Ogaki, Japan
| | - T Tada
- Department of Gastroenterology, Ogaki Municipal Hospital, Ogaki, Japan
| | - K Takaguchi
- Department of Hepatology, Kagawa Prefectural Central Hospital, Takamatsu, Japan
| | - T Senoh
- Department of Hepatology, Kagawa Prefectural Central Hospital, Takamatsu, Japan
| | - N Shimada
- Department of Gastroenterology, Otakanomori Hospital, Kashiwa, Japan
| | - A Hiraoka
- Department of Gastroenterology, Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - K Michitaka
- Department of Gastroenterology, Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - T Ishikawa
- Department of Hepatology, Saiseikai Niigata Daini Hospital, Niigata, Japan
| | - T Kumada
- Department of Gastroenterology, Ogaki Municipal Hospital, Ogaki, Japan
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47
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Sato H, Shimada N, Maruyama A. Cationic comb-type copolymer promotes DNA assembly on gold nanoparticles while enhancing particle dispersibility. Macromol Res 2017. [DOI: 10.1007/s13233-017-5112-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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48
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Yamayoshi A, Miyoshi D, Zouzumi YK, Matsuyama Y, Ariyoshi J, Shimada N, Murakami A, Wada T, Maruyama A. Selective and Robust Stabilization of Triplex DNA Structures Using Cationic Comb-type Copolymers. J Phys Chem B 2017; 121:4015-4022. [DOI: 10.1021/acs.jpcb.7b01926] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Asako Yamayoshi
- The
Hakubi Center for Advanced Research, Kyoto University, Yoshida-ushinomiyacho, Sakyo-ku, Kyoto 606-8501, Japan
- Department
of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Daisuke Miyoshi
- Faculty
of Frontiers of Innovative Research in Science and Technology (FIRST), Konan University, 7-1-20 Minatojima-minamimachi, Chuo-ku, Kobe 650-0047, Japan
| | - Yu-ki Zouzumi
- Faculty
of Frontiers of Innovative Research in Science and Technology (FIRST), Konan University, 7-1-20 Minatojima-minamimachi, Chuo-ku, Kobe 650-0047, Japan
| | - Yohei Matsuyama
- Department
of Biomolecular Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Jumpei Ariyoshi
- Department
of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
- Department
of Biomolecular Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Naohiko Shimada
- Department
of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57
Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
| | - Akira Murakami
- Department
of Biomolecular Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Takehiko Wada
- Institute
of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1,
Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Atsushi Maruyama
- Department
of Life Science and Technology, Tokyo Institute of Technology, 4259 B-57
Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8501, Japan
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49
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Sakamoto W, Ochiai T, Shimada N, Maruyama A. Cationic copolymer augments membrane permeabilizing activity of an amphiphilic peptide. J Biomater Sci Polym Ed 2017; 28:1097-1108. [PMID: 28277006 DOI: 10.1080/09205063.2017.1293483] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Membrane disruptive peptides (also called membrane fusogenic peptides) have been employed for cytosolic delivery of macromolecules such as nucleic acids and proteins. We reported previously that the cationic graft copolymer, poly(allylamine)-graft-dextran (PAA-g-Dex), augments membrane disruptive activity of the negatively charged E5 peptide. Strong membrane disruptive activity was observed in the presence of the copolymer at both acidic and neutral pH. In this paper, activities of E5/PAA-g-Dex mixture were further explored. Membrane permeabilization activity of E5/PAA-g-Dex was dependent on concentrations of both E5 and PAA-g-Dex, indicating that a complex between E5 and PAA-g-Dex produced the activity. Since the activity of peptide/PAA-g-Dex was peptide sequence-specific, we reasoned that PAA-g-Dex activated membrane-permeabilization activity by facilitating folding of E5 into its active conformation. The membrane permeabilization activity of E5/PAA-g-Dex resulted in transportation of bovine serum albumin into HL-60 cells with less cellular toxicity than digitonin, a naturally occurring surfactant used for delivery of macromolecules into cells.
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Affiliation(s)
- Wakako Sakamoto
- a Department of Life Science and Technology , Tokyo Institute of Technology , Yokohama , Japan
| | - Takuro Ochiai
- a Department of Life Science and Technology , Tokyo Institute of Technology , Yokohama , Japan
| | - Naohiko Shimada
- a Department of Life Science and Technology , Tokyo Institute of Technology , Yokohama , Japan
| | - Atsushi Maruyama
- a Department of Life Science and Technology , Tokyo Institute of Technology , Yokohama , Japan
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50
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Shimada N, Saito M, Shukuri S, Kuroyanagi S, Kuboki T, Kidoaki S, Nagai T, Maruyama A. Reversible Monolayer/Spheroid Cell Culture Switching by UCST-Type Thermoresponsive Ureido Polymers. ACS Appl Mater Interfaces 2016; 8:31524-31529. [PMID: 27802011 DOI: 10.1021/acsami.6b07614] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Multicellular spheroids have been studied in the fields of oncology, stem cell biology, and tissue engineering. In this study, we found a new polymer material for thermo-controlled spheroid/monolayer cell culture switching. The polymers that have pendant ureido groups (ureido polymers) exhibited upper critical solution temperature-type phase separation behavior. Cells in monolayer culture were converted to spheroids by the addition of ureido polymers below phase separation temperature (Tp). Time-lapse observations indicated that cells began to migrate and aggregate to form the spheroids to avoid contact with phase-separated polymer (coacervates) on the surface of the culture dish. We supposed that the coacervates seemingly suppressed interaction between cell and the dish surface or extracellular matrices. By increasing culture temperature above Tp, the spheroids began to collapse into a monolayer of cells due to dissolution of the coacervates. These results indicated that cell morphology could be repeatedly switched by changing the culture temperature in the presence of ureido polymers.
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Affiliation(s)
- Naohiko Shimada
- Department of Life Science and Technology, Tokyo Institute of Technology , 4259 B-57, Nagatsuta, Yokohama 226-8501, Japan
| | - Minako Saito
- Department of Life Science and Technology, Tokyo Institute of Technology , 4259 B-57, Nagatsuta, Yokohama 226-8501, Japan
| | - Sayaka Shukuri
- Department of Life Science and Technology, Tokyo Institute of Technology , 4259 B-57, Nagatsuta, Yokohama 226-8501, Japan
| | - Sotaro Kuroyanagi
- Department of Life Science and Technology, Tokyo Institute of Technology , 4259 B-57, Nagatsuta, Yokohama 226-8501, Japan
| | - Thasaneeya Kuboki
- Laboratory of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University , Motooka 744-CE41, Nishi-ku, Fukuoka 819-0395, Japan
| | - Satoru Kidoaki
- Laboratory of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University , Motooka 744-CE41, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takeharu Nagai
- The Institute for Scientific and Industrial Research, Osaka University , Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
| | - Atsushi Maruyama
- Department of Life Science and Technology, Tokyo Institute of Technology , 4259 B-57, Nagatsuta, Yokohama 226-8501, Japan
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