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Liquid-liquid phase separation induced by i-motif DNA under molecular crowding conditions 招待あり 査読あり
Ryosuke Suzuki, Mitsuki Tsuruta, Sumit Shil, Kosei Morohashi, Keiko Kawauchi, Daisuke Miyoshia
Polymer J. 2025年4月
担当区分：責任著者
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Tendon Tissue Regeneration With Cell Orientation Using an Injectable Alginate-Cell Cross-linked Gel 査読あり
Jun Yamaguchi, Kentaro Homan, Tomohiro Onodera, Masatake Matsuoka, Shoutaro Arakawa, Natsumi Ueda, Nana Kawate, Takayuki Nonoyama, Yoshinori Katsuyama, Koji Nagahama, Mitsuru Saito, Norimasa Iwasaki
The American Journal of Sports Medicine 2025年3月
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Three- and four-stranded nucleic acid structures and their ligands 招待あり 査読あり
Yoshiki Hashimoto, Sumit Shil, Mitsuki Tsuruta, Keiko Kawauchi, and Daisuke Miyoshi
RSC Chemical Biology 6 466 - 491 2025年3月
担当区分：責任著者
DOI： 10.1039/D4CB00287C
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ケミカルバイオロジーの冒険（１２） 核酸を標的とした低分子・中分子化合物 招待あり
堂野主税、勝田陽介、三好大輔
現代化学 648 32 - 39 2025年2月
担当区分：最終著者
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Development of a New Structural Transformation Reaction in Cr-Based MOFs Induced by Fluoride 査読あり
Shintaro Tanaka, Ryoya Miyata, Reon Teramoto, Junya Sugimoto, Takaaki Tsuruoka, Kensuke Akamatsu, Yohei Takashima
Chem. Asian J e202401717 2025年2月
担当区分：最終著者, 責任著者
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Development of detection system for lead ions in mixture solutions using UV-Vis measurements with peptide immobilized microbeads
Shuhei Yoshida, Koki Yoshida, Yoshio Hamada, Takaaki Tsuruoka, Kenji Usui
Scientific Reports 15 3249 2025年1月
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Roles of Loop Region in Folding Kinetics and Transcription Inhibition of DNA G-Quadruplexes 査読あり
Minori Nakata, Naoki Kosaka, Keiko Kawauchi, Daisuke Miyoshi
Biochemistry 64 609 - 619 2025年1月
担当区分：責任著者
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Sequence-Specific Free Energy Changes in DNA/RNA Induced by a Single LNA-T Modification in Antisense Oligonucleotides 査読あり
Elisa Tomita-Sudo, Tomoka Akita, Nae Sakimoto, Saori Tahara-Takamine, Junji Kawakami
International Journal of Molecular Sciences 25 13240 - 13240 2024年12月
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L-Histidine Modulates the Catalytic Activity and Conformational Changes of the HD3 Deoxyribozyme 査読あり
Nae Sakimoto, Hirofumi Imanaka, Elisa Tomita-Sudo, Tomoka Akita, Junji Kawakami
genes 15 1481 2024年11月
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異なるカチオン共存下におけるG4 アプタマーの構造変化のカロリメトリーを用いた検出 招待あり 査読あり
冨田 恵麗沙，石垣 卓，廣瀬 雅子, 加藤 眞紀, 川上 純司
熱測定 51 ( 4 ) 148 - 152 2024年10月
担当区分：最終著者
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NRAS DNA G-quadruplex-targeting molecules for sequence-selective enzyme inhibition 招待あり 査読あり
Yoshiki Hashimoto, Hiroki Kubo, Keiko Kawauchi and Daisuke Miyoshi
Chem. Commun. 2024年10月
担当区分：責任著者
DOI： 10.1039/D4CC03753G
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The role of cytosine methylation in regulating the topology and liquid-liquid phase separation of DNA G-quadruplexes 査読あり
Mitsuki Tsuruta, Sumit Shil, Shinya Taniguchi, Keiko Kawauchi and Daisuke Miyoshi
Chem. Sci. 16 4213 - 4225 2024年10月
担当区分：責任著者
DOI： 10.1039/D4SC06959E
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Structural transformation of silver(I)-thiolate coordination plymer film at solid-liquid interfaces 査読あり 国際共著
Myu Fukuoka, Yohei Takashima, Kensuke Akamatsu, Aude Demessence, Takaaki Tsuruoka
CrystEngComm 26 6269 - 6273 2024年10月
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Factors Affecting Liquid-Liquid Phase Separation of RGG Peptides with DNA G-Quadruplex 招待あり 査読あり
Sumit Shil, Mitsuki Tsuruta, Keiko Kawauchi, Daisuke Miyoshi
ChemMedChem 2024年9月
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Bioinformatic Analysis of Actin-Binding Proteins in the Nucleolus During Heat Shock 招待あり 査読あり
Shinya Taniguchi, Takeru Torii ,Toshiyuki Goto, Kohei Takeuchi, Rine Katsumi, Mako Sumida, Sunmin Lee, Wataru Sugimoto, Masaya Gessho, Katsuhiko Itoh, Hiroaki Hirata, Junji Kawakami, Daisuke Miyoshi and Keiko Kawauchi
Genes 15 ( 12 ) 1580 2024年9月
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Non-canonical olfactory pathway activation induces cell fusion of cervical cancer cells. 査読あり
Keigo Araki, Takeru Torii, Kohei Takeuchi, Natsuki Kinoshita, Ryoto Urano, Rinka Nakajima, Yaxuan Zhou, Tokuo Kobayashi, Tadayoshi Hanyu, Kiyoshi Ohtani, Kimiharu Ambe, Keiko Kawauchi
Neoplasia 57 101044 2024年8月
担当区分：最終著者
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Quantitative Effects of the Loop Region on Topology, Thermodynamics, and Cation Binding of DNA G-quadruplexes 査読あり
Minori Nakata, Naoki Kosaka, Keiko Kawauchi, Daisuke Miyoshi
ACS Omega 9 35028 - 35036 2024年7月
担当区分：最終著者, 責任著者
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Development of a CaCO3 Precipitation Method Using a Peptide and Microwaves Generated by a Magnetron 査読あり
Fumihiro Kayamori, Hiroyuki Togashi, Natsumi Endo, Makoto Ozaki, Kan Hirao, Yonejiro Arimoto, Ryuji Osawa, Takaaki Tsuruoka, Takahito Imai, Kin-ya Tomizaki, Tomohiro Umetani, Nobuhiro Nakanishi, Kenji Usui
Processes 12 ( 7 ) 1327 - 1327 2024年6月
出版者・発行元：MDPI AG
Microwave applications, such as microwave ovens and mobile phones, are ubiquitous and indispensable in modern society. As the utilization of microwave technology is becoming more widespread, the effects of microwaves on living organisms and physiological processes have received increased attention. This study aimed to investigate the effects of microwaves on calcium carbonate biomineralization as a model biochemical process. A magnetron oscillator was used to generate 2450 MHz microwaves because magnetrons are relatively inexpensive and widespread. We conducted transmission electron microscopy (TEM), atomic force microscopy (AFM), TEM-electron energy-loss spectroscopy (EELS), dynamic light scattering (DLS), and high-performance liquid chromatography (HPLC) measurements to analyze the calcium carbonate precipitates. Our findings showed the formation of string-like precipitates of calcium carbonate upon microwave irradiation from one direction, similar to those obtained using a semiconductor oscillator, as reported previously. This implied that the distribution of the frequency had little effect on the morphology. Furthermore, spherical precipitates were obtained upon microwave irradiation from two directions, indicating that the morphology could be controlled by varying the direction of microwave irradiation. Magnetrons are versatile and also used in large-scale production; thus, this method has potential in medical and industrial applications.
DOI： 10.3390/pr12071327
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Development of a CaCO3 Precipitation Method Using a Peptide and Microwaves Generated by a Magnetron 査読あり
Fumihiro Kayamori Hiroyuki Togashi Natsumi Endo Makoto Ozaki Kan Hirao Yonejiro Arimoto Ryuji Osawa Takaaki Tsuruoka Takahito Imai Kin-ya Tomizaki Tomohiro Umetani Nobuhiro Nakanishi Kenji Usui
Processes 12 ( 7 ) 1327 2024年6月
Microwave applications, such as microwave ovens and mobile phones, are ubiquitous and indispensable in modern society. As the utilization of microwave technology is becoming more widespread, the effects of microwaves on living organisms and physiological processes have received increased attention. This study aimed to investigate the effects of microwaves on calcium carbonate biomineralization as a model biochemical process. A magnetron oscillator was used to generate 2450 MHz microwaves because magnetrons are relatively inexpensive and widespread. We conducted transmission electron microscopy (TEM), atomic force microscopy (AFM), TEM-electron energy-loss spectroscopy (EELS), dynamic light scattering (DLS), and high-performance liquid chromatography (HPLC) measurements to analyze the calcium carbonate precipitates. Our findings showed the formation of string-like precipitates of calcium carbonate upon microwave irradiation from one direction, similar to those obtained using a semiconductor oscillator, as reported previously. This implied that the distribution of the frequency had little effect on the morphology. Furthermore, spherical precipitates were obtained upon microwave irradiation from two directions, indicating that the morphology could be controlled by varying the direction of microwave irradiation. Magnetrons are versatile and also used in large-scale production; thus, this method has potential in medical and industrial applications.
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Inhibition of RNA phosphodiester backbone cleavage in the presence of organic cations of different sizes 招待あり 査読あり 国際誌
S. Yoshioka, A. Doi, and S. Nakano
ChemBioChem 25 ( 13 ) e202400276 2024年5月
共著
担当区分：最終著者, 責任著者 出版者・発行元：Wiley
Living cells contain various types of organic cations that may interact with nucleic acids. In order to understand the nucleic acid–binding properties of organic cations of different sizes, we investigated the ability of simple organic cations to inhibit the RNA phosphodiester bond cleavage promoted by Mg2+, Pb2+, and RNA-cleaving serum proteins. Kinetic analysis using chimeric DNA–RNA oligonucleotides showed that the cleavage at ribonucleotide sites was inhibited in the presence of monovalent cations comprising alkyl chains or benzene rings. The comparison of the cleavage rates in the presence of quaternary ammonium and phosphonium ions indicated that the steric hindrance effect of organic cations on their binding to the RNA backbone is significant when the cation size is larger than the phosphate–phosphate distance of a single-stranded nucleic acid. The cleavage inhibition was also observed for ribonucleotides located in long loops but not in short loops of oligonucleotide structures, indicating less efficient binding of bulky cations to structurally constrained regions. These results reveal the unique nucleic acid–binding properties of bulky cations distinct from those of metal ions.