ISHIZUKA Takumi

写真a

Affiliation

Faculty of Medicine School of Medicine Department of Anatomy, Histochemistry and Cell Biology

Title

Assistant Professor

External Link

Degree 【 display / non-display

  • 博士(工学) ( 2011.3   東京大学 )

Research Areas 【 display / non-display

  • Nanotechnology/Materials / Bio chemistry

  • Nanotechnology/Materials / Chemical biology

Education 【 display / non-display

  • The University of Tokyo   Graduate School, Division of Engineering

    - 2011.3

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    Country:Japan

  • Tokyo Institute of Technology   Faculty of Life Science and Engineering

    - 2006.3

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    Country:Japan

 

Papers 【 display / non-display

  • The crucial role of SETDB1 in structural and functional transformation of epithelial cells during regeneration after intestinal ischemia reperfusion injury Reviewed

    Ikenoue M., Choijookhuu N., Yano K., Fidya , Takahashi N., Ishizuka T., Shirouzu S., Yamaguma Y., Kai K., Higuchi K., Sawaguchi A., Nanashima A., Hishikawa Y.

    Histochemistry and Cell Biology   161 ( 4 )   325 - 336   2024.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Histochemistry and Cell Biology  

    Su (var) 3–9, enhancer of seste, trithorax (SET)-domain bifurcated histone lysine methyltransferase (SETDB1) plays a crucial role in maintaining intestinal stem cell homeostasis; however, its physiological function in epithelial injury is largely unknown. In this study, we investigated the role of SETDB1 in epithelial regeneration using an intestinal ischemia/reperfusion injury (IRI) mouse model. Jejunum tissues were sampled after 75 min of ischemia followed by 3, 24, and 48 h of reperfusion. Morphological evaluations were performed using light microscopy and electron microscopy, and the involvement of SETDB1 in epithelial remodeling was investigated by immunohistochemistry. Expression of SETDB1 was increased following 24 h of reperfusion and localized in not only the crypt bottom but also in the transit amplifying zone and part of the villi. Changes in cell lineage, repression of cell adhesion molecule expression, and decreased histone H3 methylation status were detected in the crypts at the same time. Electron microscopy also revealed aberrant alignment of crypt nuclei and fusion of adjacent villi. Furthermore, increased SETDB1 expression and epithelial remodeling were confirmed with loss of stem cells, suggesting SETDB1 affects epithelial cell plasticity. In addition, crypt elongation and increased numbers of Ki-67 positive cells indicated active cell proliferation after IRI; however, the expression of PCNA was decreased compared to sham mouse jejunum. These morphological changes and the aberrant expression of proliferation markers were prevented by sinefungin, a histone methyltransferase inhibitor. In summary, SETDB1 plays a crucial role in changes in the epithelial structure after IRI-induced stem cell loss.

    DOI: 10.1007/s00418-023-02263-9

    Scopus

  • Protective role of estrogen through G-protein coupled receptor 30 in a colitis mouse model Reviewed

    Fidya, Narantsog Choijookhuu, Makoto Ikenoue, Koichi Yano, Yu Yamaguma, Shinichiro Shirouzu, Kengo Kai, Takumi Ishizuka, Yoshitaka Hishikawa

    Histochemistry and Cell Biology   161 ( 1 )   81 - 93   2023.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1186/s13048-022-01071-4

  • Pivotal role of High-Mobility Group Box 2 in ovarian folliculogenesis and fertility Reviewed

    Shinichiro Shirouzu, Naohiro Sugita, Narantsog Choijookhuu, Yu Yamaguma, Kanako Takeguchi, Takumi Ishizuka, Mio Tanaka, Fidya, Kengo Kai, Etsuo Chosa, Yoshihiro Yamashita, Chihiro Koshimoto, Yoshitaka Hishikawa

    Journal of Ovarian Research   15 ( 1 )   133 - 133   2022.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1186/s13048-022-01071-4

  • An Advanced Detection System for In Situ Hybridization Using a Fluorescence Resonance Energy Transfer-based Molecular Beacon Probe Reviewed

    Narantsog Choijookhuu, Yasuaki Shibata, Takumi Ishizuka, Yan Xu, Takehiko Koji, Yoshitaka Hishikawa

    Acta Histochemica et Cytochemica   55 ( 5 )   119 - 128   2022.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1267/ahc.22-00075

  • Click chemistry for fluorescence imaging via combination of a BODIPY-based ‘turn-on’ probe and a norbornene glucosamine Reviewed

    Zhiyong He, Takumi Ishizuka, Yoshitaka Hishikawa, Yan Xu

    Chemical Communications   58   12479- - 12482   2022.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1039/D2CC05359D

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Books 【 display / non-display

  • 蛍光共鳴エネルギー移動(FRET)現象を利用した 高感度in situ hybridization

    石塚 匠,Narantsog Choijookhuu,柴田 恭明,小路 武彦,菱川 善隆( Role: Joint author)

    日本顕微鏡学会  2023.12 

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    Language:Japanese Book type:Scholarly book

  • In situ hybridization法

    菱川 善隆, Narantsog Choijookhuu, 石塚 匠, 柴田 恭明, 小路 武彦( Role: Joint author)

    日本組織細胞化学会・中西印刷(株)  2022.7 

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    Language:Japanese Book type:Scholarly book

  • 病理と臨床 2022年臨時増刊号(40巻): がんゲノム医療時代の分子腫瘍学

    菱川 善隆, Narantsog Choijookhuu, 石塚 匠, 柴田 恭明, 小路 武彦( Role: Joint author ,  第1部 がんの分子病理学(序論):FISH・ISH)

    文光堂  2022.4 

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    Language:Japanese Book type:Scholarly book

  • G-Quadruplex Nucleic Acids

    Takumi Ishizuka, Hong-Liang Bao, Yan Xu( Role: Joint author ,  Chapter 26: 19F NMR Spectroscopy for the Analysis of DNA G-quadruplex Structures using 19F-labeled Nucleobase)

    Springer  2019.8 

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    Language:English Book type:Scholarly book

    DOI: 10.1007/978-1-4939-9666-7_26

Presentations 【 display / non-display

  • マウス肝再生過程におけるDNA四重鎖構造の肝細胞周期への関与

    石塚 匠, Narantsog Choijookhuu, 白水 慎一郎, Fidya, 甲斐 健吾, 菱川 善隆

    第65回日本顕微鏡学会九州支部集会  (九州工業大学戸畑キャンパス)  2023.12.9 

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    Event date: 2023.12.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州工業大学戸畑キャンパス  

  • 肝再生過程におけるグアニン四重鎖構造の肝細胞増殖への関与

    石塚 匠, Narantsog Choijookhuu, 白水 慎一郎, Fidya, 甲斐 健吾, 菱川 善隆

    日本解剖学会 第79回 九州支部学術集会  (産業医科大学)  2023.11.11 

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    Event date: 2023.11.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:産業医科大学  

  • マウス肝再生過程におけるグアニン四重鎖構造の発現動態研究

    石塚 匠, Narantsog Choijookhuu, 白水 慎一郎, Fidya, 甲斐 健吾, 菱川 善隆

    第64回日本組織細胞化学会総会・学術集会  (エッサム神田ホール)  2023.10.20 

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    Event date: 2023.10.20 - 2023.10.21

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:エッサム神田ホール  

  • 蛍光共鳴エネルギー移動(FRET)を利用したin situ hybridization法

    石塚 匠, Narantsog Choijookhuu, 柴田 恭明, 徐 岩, 小路 武彦, 菱川 善隆

    第64回日本顕微鏡学会九州支部集会  (佐賀大学鍋島キャンパス)  2022.12.17 

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    Event date: 2022.12.17

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:佐賀大学鍋島キャンパス  

  • 肝再生モデルマウスを用いたグアニン四重鎖構造の機能解明

    石塚 匠, Narantsog Choijookhuu, 矢野 公一, 池ノ上 実, 山隈 優, 白水 慎一郎, Fidya, 田中 美緒, 菱川 善隆

    第39回分子病理学研究会  (金沢医科大学, 西田幾多郎記念哲学館)  2022.7.8 

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    Event date: 2022.7.8 - 2022.7.9

    Language:Japanese   Presentation type:Poster presentation  

    Venue:金沢医科大学, 西田幾多郎記念哲学館  

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Awards 【 display / non-display

  • 2023年度 日本組織細胞化学会 論文賞

    2023.10   日本組織細胞化学会  

    Narantsog Choijookhuu, Yasuaki Shibata, Takumi Ishizuka, Yan Xu, Takehiko Koji, Yoshitaka Hishikawa

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    Award type:International academic award (Japan or overseas) 

  • FB3 優秀ポスター賞

    2012.7   FB3 organizing committee  

    石塚匠

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    Award type:Award from international society, conference, symposium, etc.  Country:Sweden

  • 東京大学大学院工学系研究科長賞(修士)

    2008.3   東京大学  

    石塚匠

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    Country:Japan

Grant-in-Aid for Scientific Research 【 display / non-display

  • 細胞内RNA四重鎖を標的とする構造プローブ法の開発

    Grant number:21K05314  2021.04 - 2024.03

    独立行政法人日本学術振興会  科学研究費補助金  基盤研究(C)

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    Authorship:Principal investigator 

  • 分子結合技術を用いた新たな造影剤による革新的がんMRI画像化技術の開発

    Grant number:20K08000  2020.04 - 2023.03

    独立行政法人日本学術振興会  科学研究費補助金  基盤研究(C)

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    Authorship:Coinvestigator(s) 

  • 分子結合技術を用いた造影剤による革新的がんCT画像化技術の開発

    Grant number:19K08156  2019.04 - 2022.03

    科学研究費補助金  基盤研究(C)

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    Authorship:Coinvestigator(s) 

  • 高感度蛍光in situハイブリダイゼーション法によるmicroRNA発現解析

    Grant number:16K08471  2016.04 - 2019.03

    科学研究費補助金  基盤研究(C)

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    Authorship:Coinvestigator(s) 

    FRETを利用して、組織切片上で特定の細胞での小分子非翻訳RNAであるmicroRNA発現動態を解析する新たな検出法を開発する。

  • 特殊な四重鎖構造の解析を可能とする新規化学修飾法の開発とその応用

    Grant number:16K17938  2016.04 - 2018.03

    科学研究費補助金  若手研究(B)

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    Authorship:Principal investigator 

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Other research activities 【 display / non-display

  • 第47回組織細胞化学講習会

    2022.08

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    In situ hybridization法」の技術講習会Wet Labを行った。

 

Social Activities 【 display / non-display

  • 解剖見学及び標本示説実習(鵬翔高等学校看護専攻科)

    Role(s): Lecturer

    2023.2.1 - 2023.2.2

  • 解剖見学及び標本示説実習(九州保健福祉大学総合医療専門学校)

    Role(s): Lecturer

    2023.1.31

  • 解剖見学及び標本示説実習(宮崎リハビリテーション学院)

    Role(s): Lecturer

    2023.1.23

  • 解剖見学及び標本示説実習(小林看護医療専門学校)

    Role(s): Lecturer

    2023.1.11

  • 解剖見学及び標本示説実習(小林看護医療専門学校)

    Role(s): Lecturer

    2022.9.2

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