Quantum RedOx Chemistry Team

量子レドックス化学チーム

量子生命科学研究所公式ウェブサイト内のチーム紹介
Team Introduction on the Official Website of the Institute for Quantum Life Science (iQLS)

2026年度
  1. 【ポスター】Retention of Myoblast Diffferentiation Ability by a Catechin Analog Possessing a Planar Structure
    ○伊藤 紘,荘司好美,清水稚菜,福原 潔,中西郁夫
    SFRR-Asia ,タイ・チェンマイ,2026年12月16〜19日
  2. 【ポスター】鉄介在性酸化ストレスを標的とするFe3+応答型平面型カテキン誘導体の創製
    Design and Synthesis of an Fe3+-Responsive Planar Catechin Derivative Targeting Iron-Mediated Oxidative Stress
    ○福原 潔,中西郁夫,荘司好美,伊藤 紘,大野彰子
    日本環境変異原ゲノム学会 第55回大会,東京,2026年11月14, 15日
  3. 【ポスター】腸内細菌代謝による大豆イソフラボンの直接抗酸化作用とDNA保護作用
    Metabolic Activation of Soy Isoflavones by Gut Microbiota Enhances Direct Antioxidant Activity
    ○岡田桜子,荘司好美,森田將夫,林 美嘉,清水稚菜,伊藤 紘,中西郁夫,福原 潔
    日本環境変異原ゲノム学会 第55回大会,東京,2026年11月14, 15日
  4. 【ポスター】A Water-Soluble 2-Tetrazene Radical Cation as a Radical Probe for Evaluating Antioxidant Activity
    大城彩里,荘司好美,伊藤 紘,寺嶋友里,大久保 敬,岩渕好治,○中西郁夫,笹野裕介
    APES-SEST 2026,浦和,2026年10月18〜22日
  5. 【ポスター】Estimation of the Reaction Rate Constant between a Dithiocarbamate-Type RAFT agent and Diphenylphosphynoyl Radical by Pulsed ESR
    ○山田康太,加藤将利,川井葉子,三宅祐輔,中西郁夫,河合明雄
    APES-SEST 2026,浦和,2026年10月18〜22日
  6. 【ポスター】Kinetic Study of the Reactions of Photogenerated Radicals with Trithiocarbonate-Type RAFT Agents by Laser-Synchronized Pulsed ESR Spectroscopy
    ○加藤将利,山田康太,川井葉子,中西郁夫,三宅祐輔,河合明雄
    APES-SEST 2026,浦和,2026年10月18〜22日
  7. 【ポスター】Dynamic Electron Polarization Induced by the Interaction between Photo Excited Anthraquinone Derivative and Radical in Aqueous Solutions
    ○上加あさぎ,中西郁夫,河合明雄
    APES-SEST 2026,浦和,2026年10月18〜22日
  8. 【口頭】Elementary Reaction Rate Constants of Radicals Measured by Spin Echo and Free Induction Decays Using Pulsed ESR Spectroscopy
    平野弘樹,加藤将利,中西郁夫,○河合明雄
    APES-SEST 2026,浦和,2026年10月18〜22日
  9. 【ポスター】TOLDスキャンおよびレドックスイメージングに基づいた組織における放射線生物学的影響の推定アプローチ
    An Approach for Estimating Radio-Biological Effects in Tissues based on Tissue Oxygen Level-Dependent MRI and Redox imaging
    ○松本謙一郎,上野恵美,髙 山,佐野ひろみ,パラジュリ・ラジュ・クマル,飯山 恵,荘司好美,伊藤 紘,中西郁夫,長田健介,小畠隆行,青木伊知男,住吉 晃
    第54回日本磁気共鳴医学会大会,鹿児島,2026年10月16〜19日
  10. 温度・ラジカル環境の操作による生体内髄膜マクロファージの遊走機能制御
    In Vivo Modulation of Meningeal Macrophage Migration through Manipulation of Temperature and the Redox Environment
    ○中島龍陽,吉岡正揮,高田彩加,下司彩楓,伊藤 紘,清水稚菜,福原 潔,中西郁夫,田桑弘之
    第35回 日本バイオイメージング学会学術集会,京都,2026年10月4, 5日
  11. 【ポスター】パルスESR法を用いたリン中心ラジカルのジチオカルバマート型RAFT剤への付加反応観測
    Pulsed ESR Observation of the Addition Reaction of a Phosphorous-Centered Radical to a Dithiocarbamate-Type RAFT Agent
    ○山田康太,加藤将利,川井葉子,三宅祐輔,中西郁夫,河合明雄
    第20回分子科学討論会,松江,2026年9月15〜18日(18日, 4P030)
  12. 【ポスター】リン中心ラジカルとジチオカルバマート型RAFT剤のレーザー同期パルスESR法による反応速度定数の決定
    Determination of the Rate Constant for the Reaction between Phosphorus-Centered Radicals and Dithiocarbamate-Type RAFT Agents by Laser-Synchronized Pulsed ESR Spectroscopy
    ○山田康太,加藤将利,川井葉子,三宅祐輔,中西郁夫,河合明雄
    2026年光化学討論会,神戸,2026年9月8〜10日(8日, 1P102)
  13. 【ポスター】水溶液中における光励起アントラキノン類のラジカル消光過程
    Quenching of Photo-Excited State Anthraquinones by Radicals in Aqueous Solutions
    ○上加あさぎ,中西郁夫,河合 明雄
    2026年光化学討論会,神戸,2026年9月8〜10日(8日, 1P101)
  14. 【ポスター】レーザー同期Pulsed-ESR法を用いた光分解生成ラジカルとベンジルドデシルトリチオカルボナートの付加反応速度定数決定
    Addition Reaction Rate Constants of Alkyl Radicals with Benzyl Dodecyl Carbonotrithioate Determined by Laser-Synchronized Pulsed ESR Method
    ○加藤将利,山田康太,川井葉子,三宅祐輔,中西郁夫,河合 明雄
    2026年光化学討論会,神戸,2026年9月8〜10日(8日, 1P100)
  15. 【講義】電子スピン共鳴(ESR)法によるラジカル種のキャラクタリゼーション
    ○中西郁夫
    フリーラジカルスクール2026,島根,2026年8月6, 7日(7日, 講義10)
  16. 【ポスター】レーザー同期パルスESR法による2-(aminomethyl)phenolと炭素中心ラジカルの反応速度定数決定
    ○山田康太,加藤将利,中西郁夫,河合明雄
    フリーラジカルスクール2026,島根,2026年8月6, 7日(6日, P-11)
    山田康太実習生が優秀ポスター発表賞受賞!!
  17. 【ポスター】水溶性2-テトラゼンラジカルカチオン塩を活性酸素ラジカルモデルとして用いる抗酸化物質の活性評価
    大城彩里,荘司好美,伊藤 紘,荘司好美,寺嶋友里,大久保 敬,岩渕好治,○中西郁夫,笹野裕介
    第29回ESRフォーラム研究会,神戸,2026年7月18日(P-08)
  18. 【ポスター】ストップトフローESR法による水溶性ビタミンE類縁体のラジカル消去反応の速度論的解析と量子トンネル効果
    ○中西郁夫,三宅祐輔,荘司好美,伊藤 紘,今里咲紀,寺嶋友里,大久保 敬,田嶋邦彦,福住俊一
    第29回ESRフォーラム研究会,神戸,2026年7月18日(P-07)
  19. 【口頭】カテキンの平面構造化による抗酸化活性増強と癌細胞への効果
    ○伊藤 紘,荘司好美,板橋勇輝,松本謙一郎,大久保 敬,福原 潔,中西郁夫
    第29回ESRフォーラム研究会,神戸,2026年7月18日(O-1)
  20. 【口頭】抗酸化物質のラジカル消去反応における逆速度論的同位体効果
    ○中西郁夫,荘司好美,伊藤 紘,寺嶋友里,大久保 敬
    第79回日本酸化ストレス学会学術集会 第2回日本レドックス医学生物学会学術集会 合同大会,名古屋,2026年6月18, 19日(19日, O-33)
  21. 【ポスター】Fe3+応答型抗酸化分子PCat-DTPAの設計とレドックス活性制御
    ○福原 潔,中西郁夫,荘司好美,伊藤 紘,大野彰子
    第79回日本酸化ストレス学会学術集会 第2回日本レドックス医学生物学会学術集会 合同大会,名古屋,2026年6月18, 19日(18日, P-47)
  22. 【ポスター】長鎖アルキル基導入平面型カテキン誘導体のラジカル消去能
    ○清水稚菜,岡田桜子,荘司好美,伊藤 紘,中西郁夫,福原 潔
    第79回日本酸化ストレス学会学術集会 第2回日本レドックス医学生物学会学術集会 合同大会,名古屋,2026年6月18, 19日(18日, P-39)
  23. 【ポスター】平面型カテキン誘導体による筋芽細胞の老化抑制と分化能保持効果
    ○伊藤 紘,荘司好美,清水稚菜,福原 潔,中西郁夫
    第79回日本酸化ストレス学会学術集会 第2回日本レドックス医学生物学会学術集会 合同大会,名古屋,2026年6月18, 19日(18日, P-38)
  24. 【招待】Elementary Reaction Rate Constants of Organic Free Radicals in Liquid Phase as Measured by the Laser Synchronized Pulsed ESR Method
    ○河合明雄,中西郁夫,三宅祐輔,加藤将利
    第41回化学反応討論会,札幌,2026年6月2〜4日(4日, IL6)
  25. 【口頭】炭素線照射した脂質中に生成するフリーラジカルの定量とその反応進行過程の解析
    Quantification of Free Radicals Generated in Lipids by Carbon-Ion Irradiation and Analysis of Their Reaction Kinetics
    ○上野恵美,荘司好美,伊藤 紘,中西郁夫,松本謙一郎
    2025年度HIMAC共同利用研究成果発表会,オンライン,2026年6月1, 2日(2日, 25HH013)
  26. 【口頭】放射線耐性株に対する5-ALAを利用したPDTによる細胞傷害増強効果
    ○黒川宏美,池田貴文,伊藤 紘,松井裕史
    第36回日本光線力学学会学術講演会・第22回日本脳神経外科光線力学学会,高知,2026年5月22, 23日(22日, JPA O1-2)

↓つづきはこちら↓
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以前の成果はresearchmapをご覧ください。
Dr. Hiromu Ito - https://researchmap.jp/hiromuito/
Dr. Ikuo Nakanishi - https://researchmap.jp/ikuo/

原著論文/Original Papers
  1. Title
    Ayari Oshiro, Yoshimi Shoji, Hiromu Ito, Yuri Terashima, Yoshiharu Iwabuchi, Ikuo Nakanishi,* and Yusuke Sasano*
    Journal, in preparation.
    DOI:
    PMID:
    Released on
  2. Title
    Yoshimi Shoji, Yusuke Miyake, Hiromu Ito, Yuri Terashima, Kunihiko Tajima, Kei Ohkubo,* Shunichi Fukuzumi,* and Ikuo Nakanishi*
    J. Am. Chem. Soc., in preparation.
    DOI:
    PMID:
    Released on
  3. Title
    Hiroko P. Indo, Hiromu Ito, Motoki Imai, Fumitaka Kawakami, Makoto Kubo, Takafumi Ichikawa, Hiroshi Abe, Ikuo Nakanishi, Ken-ichiro Matsumoto, Suriyan Sukati, Jirapat Namkeaw, Thiranut Jaroonwitchawan, Voravuth Somsak, Jun Urano, and Hideyuki J. Majima*
    Mitochondrion, in preparation.
    DOI:
    PMID:
    Released on
  4. Title
    Hiroko P. Indo, Hiroshi Abe, Hiromu Ito, Ikuo Nakanishi, Ken-ichiro Matsumoto, Jun Urano, Suriyan Sukati, Rachasak Boonhok, Moragot Chatatikun, Jitbanjong Tangpong, Voravuth Somsak, and Hideyuki J. Majima*
    Mitochondrion, in preparation.
    DOI:
    PMID:
    Released on
  5. Anti-Selective Synthesis of A-CYPMPH: a Stable Cyclic Phosphorylpyrrolidine Intermediate Enabling Reproducible Access to High-Performance Nitrones
    Masato Kamibayashi,* Ikuo Nakanishi,* Masayuki Yamashita, Takahiro Matsumoto, Ikuo Kawasaki, Hisashi Matsuda, and Toshio Morikawa
    In preparation.
    DOI:
    PMID:
    Released on
  6. Intestinal Microbial Metabolic Activation Converts Soy Isoflavones into Potent Direct Antioxidants: First Total Synthesis and Mechanistic Characterization of 5-Hydroxydehydroequol
    Sakurako Okada, Yohimi Shoji, Masato Morita, Mika Hayashi, Wakana Shimizu, Kei Ohkubo, Hiromu Ito, Ikuo Nakanishi,* and Kiyosh Fukuhara*
    Antioxidants, in contribution.
    DOI:
    PMID:
    Released on
  7. Teprenone Conjugated with a Planar Catechin Analog Enhances Cytotoxicity against Cancer Cells
    Hiromu Ito,* Yoshimi Shoji, Wakana Shimizu, Megumi Ueno, Ken-ichiro Matsumoto, Kei Ohkubo,* Kiyoshi Fukuhara,* and Ikuo Nakanishi*
    Free Radical Res., 60 (4), 440–449 (2026).
    DOI: 10.1080/10715762.2026.2680146
    PMID: 42212943
    Released on June 2, 2026
    ifra_a_2680146_uf0001_c480
  8. Assessment of Antioxidant Functions of Food Using Electron Paramagnetic Resonance Spectrometry: Verification Using Vinegar Samples
    Megumi Ueno, Minako Nyui, Ken-ichiro Matsumoto,* Ikuo Nakanishi, Hiroshi Abe, Hiroko P. Indo,* Akira Fujii, Masanobu Nagano, Jitbanjong Tangpong, Voravuth Somsak, and Hideyuki J. Majima*
    J. Food Sci., 91 (2), e70902 (2026).
    DOI: 10.1111/1750-3841.70902
    PMID: 41655056
    Released on February 8, 2026
  9. Heme–Porphyrin Metabolism in Photodynamic Therapy Associated with Reactive Oxygen Species
    Hirofumi Matsui* and Hiromu Ito*
    J. Clin. Biochem. Nutr., 78 (1), 1–5 (2026).
    DOI: 10.3164/jcbn.25-181
    PMID: 41589130
    Released on October 23, 2025
  10. Laser-Synchronized Time-Resolved ESR Spectroscopy on the Elementary Process of the Radical Addition Reaction to the C=S Double Bond
    Masatoshi Kato, Takashi Inaba, Yoko Kawai, Yusuke Miyake, Ikuo Nakanishi, and Akio Kawai*
    Sci. J. Kanagawa Univ., 36, 33–38 (2025).
    DOI: 10.24792/0002001841
    Released on July 31, 2025
  11. Enhanced Cytotoxicity against Cancer Cells by Acetylation of a Planar Catechin Analog
    Hiromu Ito,* Yoshimi Shoji, Yuki Itabashi, Ken-ichiro Matsumoto, Kei Ohkubo,* Kiyoshi Fukuhara,* and Ikuo Nakanishi*
    Free Radical Res., 59 (6–7), 480–486 (2025).
    DOI: 10.1080/10715762.2025.2525185
    PMID: 40571429
    Released on July 4, 2025
  12. Radical Scavenging Rate Constants Determined by Spin Relaxation Times of Spin Polarized Radicals as Measured by Free Induction Decay Signals
    Hiroki Hirano, Ai Nagata, Kaito Marumo, Hirona Takahashi, Ikuo Nakanishi, and Akio Kawai*
    J. Chem. Phys., 162, 124707 (2025).
    DOI: 10.1063/5.0251604
    PMID: 40125680
    Released on March 24, 2025
    1855373_1_unknown_upload_25037618_sr939k
  13. Synephrine Inhibits Oxidative Stress and H2O2-Induced Premature Senescence
    Hiroshi Abe, Hiroko P. Indo,* Hiromu Ito, Hideyuki J. Majima, and Tatsuro Tanaka
    Cell Biochem. Biophys., 83 (2), 2607-2622 (2025). Open access
    DOI: 10.1007/s12013-025-01669-7
    PMID: 39832117
    Released on January 20, 2025
  14. The Roles of Mitochondria in Human Being's Life and Aging
    Hiroko P. Indo, Moragot Chatatikun, Ikuo Nakanishi, Ken-ichiro Matsumoto, Motoki Imai, Fumitaka Kawakami, Makoto Kubo, Hiroshi Abe, Hiroshi Ichikawa, Yoshikazu Yonei, Hisashi J. Beppu, Yukiko Minamiyama, Takuro Kanekura, Takafumi Ichikawa, Atthaphong Phongphithakchai, Lunla Udomwech, Suriyan Sukati, Nurdina Charong, Voravuth Somsak, Jitbanjong Tangpong, Sachiyo Nomura, and Hideyuki J. Majima*
    Biomolecules, 14 (10), 1317 (2024). Open access
    DOI: 10.3390/biom14101317
    PMID: 39456251
    Released on October 17, 2024
    biomolecules-14-01317-ag
  15. Antioxidant Activity of Planar Catechin Conjugated with Trolox
    Wakana Shimizu, Yoshimi Shoji, Kei Ohkubo, Hiromu Ito, Ikuo Nakanishi,* and Kiyoshi Fukuhara*
    Antioxidants, 13 (10), 1165 (2024). Open access
    DOI: 10.3390/antiox13101165
    PMID: 39456420
    Released on September 25, 2024
    PCat-TrOH_Antioxidants_GA
  16. A Mechanism for Apoptotic Effects of a Planar Catechin Analog on Cancer Cells
    Hiromu Ito,* Yoshimi Shoji, Ken-ichiro Matsumoto, Kiyoshi Fukuhara, and Ikuo Nakanishi*
    Molecules, 29 (18), 4467 (2024). Open access
    DOI: 10.3390/molecules29184467
    PMID: 39339462
    Released on September 20, 2024
  17. Construction of a Screening System for Lipid-Derived Radical Inhibitors and Validation of Hit Compounds to Target Retinal and Cerebrovascular Diseases
    Ryota Mori, Masami Abe, Yuma Saimoto, Saki Shinto, Sara Jodai, Manami Tomomatsu, Kaho Tazoe, Minato Ishida, Masataka Enoki, Nao Kato, Tomohiro Yamashita, Yuki Itabashi, Ikuo Nakanishi, Kei Ohkubo, Sachiko Kaidzu, Masaki Tanito, Yuta Matsuoka, Kazushi Morimoto, and Ken-ichi Yamada*
    Redox Biol., 73, 103186 (2024). Open access
    DOI: 10.1016/j.redox.2024.103186
    PMID: 38744193
    Released on May 8, 2024
  18. Scandium Ion-Promoted Electron-Transfer Disproportionation of 2-Phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-Oxide (PTIO·) in Acetonitrile and Its Regeneration Induced by Water
    Yoshimi Shoji, Yuri Terashima, Kei Ohkubo, Hiromu Ito, Kouichi Maruyama, Shunichi Fukuzumi, and Ikuo Nakanishi*
    Int. J. Mol. Sci., 25 (8), 4417 (2024). Open access
    DOI: 10.3390/ijms25084417
    PMID: 38674002
    Released on April 17, 2024
    IJSM2024_25_4417
  19. Reactive Oxygen Species Induced by Indomethacin Enhance Accumulation of Heme Carrier Protein 1 and Hematoporphyrin Accumulation In Vitro and In Vivo in a Brain Tumor Model
    Hidehiro Kohzuki, Hiromu Ito, Hiromi Kurokawa, Hirofumi Matsui,* Tetsuya Yamamoto, and Eiichi Ishikawa
    J. Clin. Biochem. Nutr., 74 (3), 207-212 (2024) Open access
    DOI: 10.3164/jcbn.23-20
    PMID: 38799142
    Released on February 1, 2024
  20. Mitochondria Play Essential Roles in Intracellular Protection against Oxidative Stress—Which Molecules among the ROS Generated in the Mitochondria Can Escape the Mitochondria and Contribute to Signal Activation in Cytosol?
    Daisuke Masuda, Ikuo Nakanishi,* Kei Ohkubo, Hiromu Ito, Ken-ichiro Matsumoto, Hiroshi Ichikawa, Moragot Chatatikun, Wiyada Kwanhian Klangbud, Manas Kotepui, Motoki Imai, Fumitaka Kawakami, Makoto Kubo, Hirofumi Matsui, Jitbanjong Tangpong, Takafumi Ichikawa, Toshihiko Ozawa, Hsui-Chuan Yen, Daret K. St Clair, Hiroko P. Indo,* and Hideyuki J. Majima*
    Biomolecules, 14 (1), 128 (2024). Open access
    DOI: 10.3390/biom14010128
    PMID: 38275757
    Released on January 19, 2024
  21. Hair Follicle Damage after 100 mGy Low-Dose Fractionated X-ray Irradiation and the Protective Effects of TEMPOL, a Stable Nitroxide Radical, against Radiation
    Yoshihiro Kawabata, Tomoko Fukushige, Hiroko P. Indo, Ken-ichiro Matsumoto,* Megumi Ueno, Ikuo Nakanishi, Moragot Chatatikun, Wiyada Kwanhian Klangbud, Sirirat Surinkaew, Jitbanjong Tangpong, Takuro Kanekura, and Hideyuki J. Majima*
    Radiat. Res., 201 (2), 115-125 (2024).
    DOI: 10.1667/RADE-23-00167.1
    PMID: 38211765
    Released on January 12, 2024
  22. Enhanced Inhibition of Cancer Cell Migration by a Planar Catechin Analog
    Hiromu Ito,* Yoshimi Shoji, Ken-ichiro Matsumoto, Kiyoshi Fukuhara,* and Ikuo Nakanishi*
    ACS Med. Chem. Lett., 15 (2), 310-313 (2024).
    DOI: 10.1021/acsmedchemlett.3c00499
    PMID: 38352823
    Released on January 10, 2024
    images_medium_ml3c00499_0003s
  23. Photodynamic Therapy for X-ray-Induced Radiation-Resistant Cancer Cells
    Hiromu Ito,* Yoshimi Shoji, Megumi Ueno, Ken-ichiro Matsumoto, and Ikuo Nakanishi*
    Pharmaceutics, 15 (11), 2536 (2023). Open access
    DOI: 10.3390/pharmaceutics15112536
    PMID: 38004516
    Released on October 26, 2023
    pharmaceutics-15-02536-ag_s
  24. Enhancement of Cytotoxic Effects with ALA-PDT on Treatment of Radioresistant Cancer Cells
    Takafumi Ikeda, Hiromi Kurokawa,* Hiromu Ito,* Kiichiro Tsuchiya, and Hirofumi Matsui*
    J. Clin. Biochem. Nutr., 74 (1), 17-21 (2024). Open access
    DOI: 10.3164/jcbn.23-79
    PMID: 38292126
    Released on October 3, 2023
  25. Anti-Cancer Effect of a Planar Catechin Analog through the Decrease in Mitochondrial Membrane Potential
    Hiromu Ito,* Yoshimi Shoji, Ken-ichiro Matsumoto, Kiyoshi Fukuhara,* and Ikuo Nakanishi*
    ACS Med. Chem. Lett., 14 (10), 1478-1481 (2023).
    DOI: 10.1021/acsmedchemlett.3c00328
    PMID: 37849552
    Released on October 3, 2023
    images_large_ml3c00328_0004_480
  26. Water-Induced Regeneration of a 2,2-Diphenyl-1-picrylhydrazyl Radical after Its Scandium Ion-Promoted Electron-Transfer Disproportionation in an Aprotic Medium
    Ikuo Nakanishi,* Yoshimi Shoji, Kei Ohkubo,* Hiromu Ito, and Shunichi Fukuzumi*
    Molecules, 28 (13), 5002 (2023). Open access
    DOI: 10.3390/molecules28135002
    PMID: 37446663
    Released on June 26, 2023
    GA_v2_
  27. In Vitro Radical-Scavenging Mechanism of Melatonin and Its In Vivo Protective Effect against Radiation-Induced Lipid Peroxidation
    Kailash Manda,* Kei Ohkubo,* Yoshimi Shoji, A. K. M. Raushan Kabir Zoardar, Masato Kamibayashi, Toshihiko Ozawa, Kazunori Anzai, and Ikuo Nakanishi*
    Redox Biochem. Chem., 3-4, 100003 (2023). Open access
    DOI: 10.1016/j.rbc.2023.100003
    Released on April 11, 2023
  28. Effects of X-ray Irradiation on the Redox Status of Mouse Colorectal Tissues
    Megumi Ueno, Raj Kumar Parajuri, Hiromu Ito, Megumi Iiyama, Saaya Suzuki, Ken-ichiro Matsumoto,* Ikuo Nakanishi, Ichio Aoki, and Akira Sumiyoshi
    Adv. Redox Res., 8, 100067 (2023). Open access
    DOI: 10.1016/j.arres.2023.100067
    Released on March 26, 2023
  29. Evidence of Nrf2/Keap1 Signaling Regulation by Mitochondria-Generated Reactive Oxygen Species in RGK1 Cells
    Hiroko P. Indo,* Daisuke Masuda, Sompong Srburee, Hiromu Ito, Ikuo Nakanishi, Ken-ichiro Matsumoto, Samlee Mankhetkorn, Moragot Chatatikun, Sirirat Surinkaew, Lunla Udomwech, Fumitaka Kawami, Takafumi Ichikawa, Hirofumi Matsui, Jitbanjong Tangpong, and Hideyuki J. Majima*
    Biomolecules, 13 (3), 445 (2023). Open access
    DOI: 10.3390/biom13030445
    PMID: 36979380
    Released on February 27, 2023
    biomolecules-13-00445-ag_s
  30. DTPA-Bound Planar Catechin with Potent Antioxidant Activity Triggered by Fe3+ Coordination
    Kiyoshi Fukuhara,* Ikuo Nakanishi, Kohei Imai, Mirei Mizuno, Ken-ichiro Matsumoto, and Akiko Ohno
    Antioxidants, 12 (2), 225 (2023). Open access
    DOI: 10.3390/antiox12020225
    PMID: 36829782
    Released on January 18, 2023
    antioxidants-12-00225-ag-480
  31. Effects of Selenium Deficiency on Biological Results of X-ray and Carbon-Ion Beam Irradiation in Mice
    Megumi Ueno, Sayaka Shibata, Ikuo Nakanishi, Ichio Aoki, Ken-ichi Yamada, and Ken-ichiro Matsumoto*
    J. Clin. Biochem. Nutr., 72 (2), 107-116 (2023). Open access
    DOI: 10.3164/jcbn.22-57
    PMID: 36936873
    Released on December 8, 2022
  32. Acetic Acid Enhances the Effect of Photodynamic Therapy in Gastric Cancer Cells via the Production of Reactive Oxygen Species
    Hiromi Kurokawa, Hiromu Ito, Daisuke Matano, Masahiko Terasaki, and Hirofumi Matsui*
    J. Clin. Biochem. Nutr., 71 (3) 206-211 (2022). Open access
    DOI: 10.3164/jcbn.22-34
    PMID: 36447491
    Released on August 4, 2022
  33. Importance of Locations of Iron Ions to Elicit Cytotoxicity Induced by a Fenton-Type Reaction
    Kintaro Igarashi, Yoshimi Shoji, Emiko Sekine-Suzuki, Megumi Ueno, Ken-ichiro Matsumoto,* Ikuo Nakanishi, and Koji Fukui
    Cancers, 14 (15), 3642 (2022). Open access
    DOI: 10.3390/cancers14153642
    PMID: 35892902
    Released on July 27, 2022
  34. Effect of Magnesium Ion on the Radical-Scavenging Rate of Pterostilbene in an Aprotic Medium: Mechanistic Insight into the Antioxidative Reaction of Pterostilbene
    Ikuo Nakanishi,* Yoshimi Shoji, Kei Ohkubo,* Megumi Ueno, Kei Shimoda, Ken-ichiro Matsumoto, Kiyoshi Fukuhara,* and Hiroki Hamada*
    Antioxidants, 11 (2), 340 (2022). Open access
    DOI: 10.3390/antiox11020340
    PMID: 35204222
    Released on February 9, 2022
    antioxidants-11-00340-ag_s
  35. Estimation of the Local Concentration of the Markedly Dense Hydroxyl Radical Generation Induced by X-rays in Water
    Ken-ichiro Matsumoto,* Megumi Ueno, Yoshimi Shoji, and Ikuo Nakanishi
    Molecules, 27 (3), 592 (2022). Open access
    DOI: 10.3390/molecules27030592
    PMID: 35163857
    Released on January 18, 2022
  36. Simplifying Quantitative Measurement of Free Radical Species Using an X-Band EPR Spectrometer
    Yusuke Makino, Megumi Ueno, Yoshimi Shoji, Minako Nyui, Ikuo Nakanishi, Koji Fukui, and Ken-ichiro Matsumoto*
    J. Clin. Biochem. Nutr., 70 (3), 213-221 (2022). Open access
    DOI: 10.3164/jcbn.21-83
    PMID: 35692674
    Released on December 25, 2021
  37. Electrochemical Redox Behavior of 2,2-Diphenyl-1-picrylhydrazyl Radical Solubilized by beta-Cyclodextrin in Water
    Ikuo Nakanishi* and Yoshimi Shoji
    Electrochem. Commun., 134, 107190 (2022). Open access
    DOI: 10.1016/j.elecom.2021.107190
    Released on December 24, 2021
    Electrochem_Commun360
  38. Tunneling in the Hydrogen-Transfer Reaction from a Vitamin E Analog to an Inclusion Complex of 2,2-Diphenyl-1-picrylhydrazyl Radical with beta-Cyclodextrin in an Aqueous Buffer Solution at Ambient Temperature
    Ikuo Nakanishi,* Yoshimi Shoji, Kei Ohkubo,* and Shunichi Fukuzumi*
    Antioxidants, 10 (12), 1966 (2021). Open access
    DOI: 10.3390/antiox10121966
    PMID: 34943069
    Released on December 8, 2021
  39. Effects of Loading a Magnetic Field Longitudinal to the LInear Particle-Beam Track on Yields of Reactive Oxygen Species in Water
    Ken-ichiro Matsumoto,* Ikuo Nakanishi, Yasushi Abe, Shinji Sato, Ryosuke Kohno, Dousatsu Sakata, Kota Mizushima, Sung Hyun Lee, and Taku Inaniwa
    Free Radical Res., 55 (5), 547-555 (2021). Open access
    DOI: 10.1080/10715762.2021.1970151
    PMID: 34569399
    Released on September 27, 2021
  40. Effects of LET on Oxygen-Dependent and -Independent Generation of Hydrogen Peroxide in Water Irradiated by Carbon-Ion Beams
    Ken-ichiro Matsumoto,* Megumi Ueno, Minako Nyui, Yoshimi Shoji, and Ikuo Nakanishi
    Free Radical Res., 55 (6), 589-594 (2021). Open access
    DOI: 10.1080/10715762.2021.1915489
    PMID: 34519601
    Released on September 14, 2021
  41. Nitroxyl Radical as a Theranostic Contrast Agent in Magnetic Resonance Imaging
    Ken-ichiro Matsumoto,* Ikuo Nakanishi, Zhivko Zhelev, Rumiana Bakalova, and Ichio Aoki
    Antioxid. Redox Signaling, 36 (1-3), 95-121 (2022). Open access
    DOI: 10.1089/ars.2021.0110
    PMID: 34148403
    Released on June 19, 2021
  42. Protective Effects of Amino Acids on Plasmid DNA Damage Induced by Therapeutic Carbon Ions
    Katsunori Yogo,* Chieko Murayama, Ryoichi Hirayama, Ken-ichiro Matsumoto, Ikuo Nakanishi, Hiromichi Ishiyama, and Hiroshi Yasuda
    Radiat. Res., 196 (2), 197-203 (2021).
    DOI: 10.1667/RADE-21-00033.1
    PMID: 34043797
    Released on May 27, 2021

総説/Review Articles
  1. HSP47 in Mitochondria: Roles in Apoptosis, Signal Transduction, and Protein and Virus Transportation
    Sirirat Surinkaew, Noriko Hosoya, Hiromu Ito, Hiroshi Abe, Ikuo Nakanishi, Ken-ichiro Matsumoto, Motoki Imai, Fumitaka Kawakami, Makoto Kubo, Takafumi Ichikawa, Hiroshi Ichikawa, Yoshikazu Yonei, Hisashi J. Beppu, Junko Suka, Rachasak Boonhok, Moragot Chatatikun, Suriyan Sukati, Nitita Piya-amornphan, Chadapa Rungruangbaiyok, Charupa Lektip, Voravuth Somsak, Luksana Chaiswing, Pradoldej Sompol, Jun Urano, Meng Ling Moi,* Hiroshi Takayanagi,* Hiroko P. Indo,* and Hideyuki J. Majima*
    Cells, 15 (17), 1601 (2026).
    DOI: 10.3390/cells15171601
    PMID:
    Released on September 2, 2026
  2. Structure-Guided Design of Planarized Catechin Derivatives: Enhancing Antioxidant and Multifaceted Biological Activities for Therapeutic Applications
    Kiyoshi Fukuhara,* Ikuo Nakanishi, Hiromu Ito, Wakana Shimizu, Yoshimi Shoji, Kei Ohkubo, Masao Morita, Sakurako Okada, and Akiko Ohno
    Antioxindants, 15 (8), 964 (2026).
    DOI: 10.3390/antiox15080964
    PMID: 42650227
    Released on August 1, 2026

プロシーディングなど/Proceedings, etc.
  1. Intestinal Microbial Metabolic Activation Converts Soy Isoflavones into Potent Direct Antioxidants: First Total Synthesis and Mechanistic Characterization of 5-Hydroxydehydroequol
    Sakurako Okada, Yohimi Shoji, Masato Morita, Mika Hayashi, Wakana Shimizu, Kei Ohkubo, Hiromu Ito, Ikuo Nakanishi,* and Kiyosh Fukuhara*
    Preprints, 2026090278 (2026).
    DOI: 10.20944/preprints202609.0278.v1
    Released on September 3, 2026
  2. Structure-Guided Design of Planarized Catechin Derivatives: Enhancing Antioxidant and Multifaceted Biological Activities for Therapeutic Applications
    Kiyoshi Fukuhara,* Ikuo Nakanishi, Hiromu Ito, Wakana Shimizu, Yoshimi Shoji, Kei Ohkubo, Masao Morita, Sakurako Okada, and Akiko Ohno
    Preprints, 2026071544 (2026).
    DOI: 10.20944/preprints202607.1544.v1
    Released on July 21, 2026
  3. Enhanced Cytotoxic Effect and Radical-Scavenging Activity of a Planar Catechin Analog Conjugated with Teprenone
    Hiromu Ito, Yoshimi Shoji, Wakana Shimizu, Megumi Ueno, Ken-ichiro Matsumoto, Kiyoshi Fukuhara, and Ikuo Nakanishi
    Free Radical Biol. Med., 233 (Supplement 1), S78-S79 (2025).
    DOI: 10.1016/j.freeradbiomed.2025.05.278
    Released on May 30, 2025
  4. Antioxidant Activity of Planar Catechin Conjugated with Trolox
    Wakana Shimizu, Yoshimi Shoji, Kei Ohkubo, Hiromu Ito, Ikuo Nakanishi,* and Kiyoshi Fukuhara*
    Preprints, 2024081751 (2024).
    DOI: 10.20944/preprints202408.1751.v1
    Released on August 23, 2024
  5. 放射線障害予防と酸化ストレス
    松本謙一郎,中西郁夫,伊藤 紘
    酸化ストレスの医学 改訂第3版, 一般社団法人日本酸化ストレス学会監修,内藤裕二,豊國伸哉,赤池孝章,半田修編,東京,診断と治療社,2024, p.500-506.
    Released on June 5, 2024
  6. Radiation Damage and Oxidative Stress
    Ken-ichiro Matsumoto, Ikuo Nakanishi, and Hiromu Ito
    Journal of Clinical and Experimental Medicine (IGAKU NO AYUMI), 289 (4), 271-274 (2024).
    Released on April 27, 2024
  7. Analysis of a Planar Catechin Analog on Cancer Cellular Inhibition
    Hiromu Ito, Yoshimi Shoji, Ken-ichiro Matsumoto, Kiyoshi Fukuhara, and Ikuo Nakanishi
    Free Radical Biol. Med., 208 (Supplement 1), S124-S125 (2023).
    DOI: 10.1016/j.freeradbiomed.2023.10.283
    Released on November 1, 2023
  8. pH Effect on the Kinetic Isotope Effect in the Hydrogen Transfer from Trolox to Water-Solubilized 2,2-Diphenyl-1-picrylhydrazyl Radical in Phosphate Buffer Solutions
    Ikuo Nakanishi, Yoshimi Shoji, and Kei Ohkubo
    Free Radical Biol. Med., 192 (Supplement 1), 131 (2022).
    DOI: 10.1016/j.freeradbiomed.2022.10.243
    Released on November 1, 2022
  9. Evaluation of Redox Responses of Mouse Colorectum Tissue after X-ray Irradiation
    Megumi Ueno, Raj Kumar Parajuli, Hiromu Ito, Megumi Iiyama, Saaya Suzuki, Ken-ichiro Matsumoto, Ikuo Nakanishi, Ichio Aoki, and Akira Sumiyoshi
    Free Radical Biol. Med., 192 (Supplement 1), 128-129 (2022).
    DOI: 10.1016/j.freeradbiomed.2022.10.238
    Released on November 1, 2022
  10. Adjunctive Effects with Continual X-ray Irradiation for Effective Photodynamic Therapy
    Hiromu Ito and Ikuo Nakanishi
    Free Radical Biol. Med., 192 (Supplement 1), 125 (2022).
    DOI: 10.1016/j.freeradbiomed.2022.10.231
    Released on November 1, 2022
  11. On 'Spin Trapping of Superoxide and Hydroxyl Radical: Practical Aspect' by Eli Finkelstein, Gerald M. Rosen and Elmer J. Rauckman
    Toshihiko Ozawa* and Ikuo Nakanishi
    Arch. Biochem. Biophys., 726, 109191 (2022).
    DOI: 10.1016/j.abb.2022.109191
    PMID: 35318035
    Released on March 19, 2022
  12. pH Effect on the Scavenging Reaction of Ascorbic Acid against Selected Radicals in Phosphate Buffer Solutions
    Ikuo Nakanishi, Yoshimi Shoji, Kei Ohkubo, Toshihiko Ozawa, Ken-ichiro Matsumoto, and Shunichi Fukuzumi
    Free Radical Biol. Med., 180 (Supplement 1), S64 (2022).
    DOI: 10.1016/j.freeradbiomed.2021.12.146
    Released on February 20, 2022
  13. Initial Molecular Geometry of Radiation-Induced Reactive Species in Water
    Ken-ichiro Matsumoto, Megumi Ueno, Yoshimi Shoji, and Ikuo Nakanishi
    Free Radical Biol. Med., 180 (Supplement 1), S63-S64 (2022).
    DOI: 10.1016/j.freeradbiomed.2021.12.145
    Released on February 20, 2022

  1. 山田康太(実習生)
    レーザー同期パルスESR法による2-(aminomethyl)phenolと炭素中心ラジカルの反応速度定数決定
    優秀ポスター発表賞,フリーラジカルスクール2026,松江,2026年8月
  2. 大城彩里(実習生)
    水溶性2-テトラゼンラジカルカチオン塩を用いる抗酸化物質活性評価法の開発
    日本薬学会第146年会学生優秀発表賞,大阪,2026年3月
  3. 伊藤 紘
    カテキンの平面構造化による抗酸化能力増強と癌細胞傷害活性
    大隈ライフサイエンス研究会奨励賞,横浜,2025年12月
  4. 中西郁夫
    酸化ストレスを制御する抗酸化医薬品の開発に向けた基礎研究
    土屋文化振興財団助成金,千葉,2025年11月
  5. 上加あさぎ(実習生)
    ニトロキシドラジカルと光励起アントラキノン誘導体の系で発生する電子スピン分極の時間分解ESR観測
    優秀ポスター発表賞,フリーラジカルスクール2025,和歌山,2025年8月
  6. 加藤将利(実習生)
    レーザー同期パルスESR法によるα-Tocopherolと光分解生成ラジカルの反応速度定数決定
    優秀ポスター発表賞,フリーラジカルスクール2025,和歌山,2025年8月
  7. 大城彩里(実習生)
    新規水溶性ラジカルカチオン塩を利用した抗酸化物質活性評価法の開発
    優秀口頭発表賞,フリーラジカルスクール2025,和歌山,2025年8月
  8. Hiromu Ito
    Enhanced Cytotoxic Effect and Radical-Scavenging Activity of a Planar Catechin Analog Conjugated with Teprenone
    SFRR Japan Young Investigator Award 2025, 22nd SFRRI Biennial Meeting, Galway, Ireland, June, 2025
  9. 清水稚菜(実習生)
    平面型カテキン-トロロックス誘導体の抗酸化活性
    優秀発表賞,第37回日本酸化ストレス学会関東支部会,東京,2024年11月
  10. 伊藤 紘
    平面型カテキン誘導体の癌細胞傷害性とアセチル化による効果増強
    学術奨励賞,第77回日本酸化ストレス学会 第23回日本NO学会 合同学術集会,横須賀,2024年5月
  11. 伊藤 紘
    平面型カテキン誘導体を用いた癌細胞抑制効果の検討
    最優秀演題賞,第36回日本酸化ストレス学会関東支部会,川崎,2023年12月
  12. Hiromu Ito
    Analysis of a Planar Catechin Analog on Cancer Cellular Inhibition
    SFRR Asia Travel Award 2023, SfRBM - SFRRI 2023 Conference, Punta del Este, Uruguay, November, 2023.
  13. Hiromu Ito
    Effect of Cancer Cellular Inhibition by a Planar Catechin
    SFRR Japan Young Investigator Award 2022, SFRRA&J 2022 Conference, Christchurch, New Zealand, December, 2022.
  14. Hiromu Ito
    Definition and Estimation of Chemical Oxygen Enhancement Ratio (COER) of Radiation Induced Reactive Oxygen Species
    SFRR Japan Young Investor Award 2022, SFRR-Asia 2022, Seoul, Korea, November, 2022.

2026年8月6日から7日に、島根県の松江で開催された「フリーラジカルスクール2026」において、実習生の山田康太さんが「レーザー同期パルスESR法による2-(aminomethyl)phenolとリン中心ラジカルの反応速度定数決定」と題する発表で優秀ポスター発表賞を受賞しました。

おめでとうございます!!

2026年7月30日に、東北大学大学院薬学研究科と共同で特許を出願しました。

PCT/JP2026/027661
「抗酸化物質の評価方法」
中西郁夫、荘司好美、伊藤 紘、寺嶋友里、笹野裕介、大城彩里、岩渕好治

おめでとうございます!!

Dr. Hiromu Ito has been promoted to Principal Researcher.
Congratulations!!

2026年7月1日現在

チームリーダー / Team Leader
 中西 郁夫 / Ikuo Nakanishi
 https://researchmap.jp/ikuo/

主幹研究員 / Principal Researcher
 伊藤 紘 / Hiromu Ito
 https://researchmap.jp/hiromuito/

主任技術員 / Senior Technical Staff
 荘司 好美 / Yoshimi Shoji
 https://researchmap.jp/shoji.yoshimi

業務補助員 / Assistant
 寺嶋 友里 / Yuri Terashima

協力研究員 / Visiting Collaborative Researcher
 大久保 敬 (大阪大学) /
 Prof. Kei Ohkubo (The University of Osaka)
 https://www.irdd.osaka-u.ac.jp/ohkubo/

 五十鈴川 和人 (横浜薬科大学) /
 Prof. Kazuto Isuzugawa (Yokohama University of Pharmacy)

 稲見 圭子 (山陽小野田市立山口東京理科大学) /
 Prof. Keiko Inami (Sanyo-Onoda City University)

 河合 明雄 (神奈川大学) /
 Prof. Akio Kawai (Kanagawa University)
 https://sites.google.com/view/akawaigroup/home

 福原 潔 (昭和医科大学) /
 Prof. Kiyoshi Fukuhara (Showa Medical University)

 清水 稚菜 (昭和医科大学) /
 Dr. Wakana Shimizu (Showa Medical University)

 笹野 裕介 (東北大学) /
 Dr. Yusuke Sasano (Tohoku University)

 辻本 恭久 (日本大学) /
 Prof. Yasuhisa Tsujimoto (Nihon University)

 小峯 千明 (日本大学) /
 Prof. Chiaki Komine (Nihon University)

 Prof. Anjani Kumar Tiwari (Babasaheb Bhimrao Ambedkar University)

実習生 / Trainee
 加藤 将利 (神奈川大学大学院) /
 Masatoshi Kato (Kanagawa University)

 上加 あさぎ (神奈川大学大学院) /
 Asagi Joka (Kanagawa University)

 岡田 桜子 (昭和医科大学大学院) /
 Sakurako Okada (Showa Medical University)

 山田 康太 (神奈川大学大学院) /
 Kota Kato (Kanagawa University)

 今里 咲紀 (インペリアル・カレッジ・ロンドン) /
 Saki Imazato (Imperial College London)

中西チームリーダーが研究分担者となっている挑戦的研究(萌芽)「新奇安定ラジカルカチオン塩による酸化ストレス解析基盤の開拓」が採択されました。

研究代表者は東北大学の笹野裕介准教授です。

昨年度に続き、Anjani Kumar Tiwari教授が2026年6月1日から17日まで当研究チームに滞在しました。

2026年3月26日から29日に関西大学千里山キャンパスで開催された日本薬学会第146年会において、実習生の大城彩里さん(東北大学大学院)が「水溶性2-テトラゼンラジカルカチオン塩を用いる抗酸化物質活性評価法の開発」と題する発表で学生優秀発表賞を受賞しました。

おめでとうございます!!

Dr. Ayari Oshiro (Graduate School, Tohoku University), a trainee in our team, was awarded the Best Student Presentation Award at the 146th Annual Meeting of the Pharmaceutical Society of Japan, held at Kansai University (Senriyama Campus) from March 26 to 29, 2026, for her presentation entitled "Development of an Antioxidant Activity Assay Employing a Water-Soluble 2-Tetrazene Radical Cation Salt."

Congratulations.

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