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Construct of realtime DNA damage-repair responce detention system and analysis of intratumor DNA damage-repair responce

Research Project

Project/Area Number 21K07727
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52040:Radiological sciences-related
Research InstitutionKyoto University

Principal Investigator

Kobayashi Minoru  京都大学, 生命科学研究科, 特定助教 (40644894)

Co-Investigator(Kenkyū-buntansha) 原田 浩  京都大学, 生命科学研究科, 教授 (80362531)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
KeywordsDNA損傷修復 / In vivo imaging
Outline of Research at the Start

定量性に優れ、細胞や動物個体を殺さずに検出可能な発光タンパク質ルシフェラーゼを用いて、DNA損傷や修復活性依存的にルシフェラーゼの発光が発生する系を構築する。これらの系をがん細胞に導入し、移植腫瘍を作成することで、腫瘍組織において、抗がん剤や放射線などの治療によってDNA損傷や修復がどのような経路を用いて、どのようなタイムコースで起きるのかを解析する。さらに、ここで得られた知見をもとに、DNA修復の阻害剤などを最適なタイミングで投与することで、治療効果の増強を目指した検討を行う。これによって、がんの治療抵抗性の発生機序解明や克服に繋がる研究を行う。

Outline of Final Research Achievements

In this study, I try to construct assay system for detection of DNA damage repair responses using split luciferase fused with DNA damage response protein. First, I used firefly luciferase-based split luciferase system, but I had problem to unexpected response such as temperature and non-specific drug-dependent luminescence increment. So, I changed split luciferase system from firefly luciferase-based system to NanoLuc-based NanoBit system and I succeeded reduce unexpected response. Now I continue to develop convenient DNA-damage response-detection system using NanoBit-based split luciferase for much convenience.

Academic Significance and Societal Importance of the Research Achievements

これまでDNA損傷修復活性を定量する方法は限られており、経時的・定量的な解析が困難であった。そこで、本研究では定量性に優れ、細胞や動物個体を殺さずに検出可能な発光タンパクであるルシフェラーゼを基にした分割ルシフェラーゼ系を用いてDNA損傷や修復活性を検出する系の構築を試みた。
当初予定していたホタルルシフェラーゼを基にした系では非特異的な反応の影響が大きかったため、NanoLucを基にしたNanoBitに系を変更することで非特異的な反応を低減したDNA損傷修復活性検出系の構築の礎を築いた。今後この系をさらに発展させていく予定である。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (14 results)

All 2024 2023 2022 2021 Other

All Journal Article (10 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 10 results,  Open Access: 6 results) Presentation (1 results) Book (1 results) Remarks (2 results)

  • [Journal Article] DDX5 enhances HIF‐1 activity by promoting the interaction of HIF‐1α with HIF‐1β and recruiting the resulting heterodimer to its target gene loci2024

    • Author(s)
      Yukari SHIRAI; Tatsuya SUWA; Minoru KOBAYASHI; Sho KOYASU; Hiroshi HARADA
    • Journal Title

      Biology of the Cell

      Volume: 116 Issue: 2

    • DOI

      10.1111/boc.202300077

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Reductively convertible nickel phthalocyanine precursor as a biological thiol-responsive turn-on photoacoustic contrast agent2024

    • Author(s)
      Nogita K; Sugahara T; Miki K; Mu H; Kobayashi M; Harada H; Ohe K
    • Journal Title

      Chemical Communications

      Volume: 60 Issue: 11 Pages: 1472-1475

    • DOI

      10.1039/d3cc05628g

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Whole-Body and Whole-Organ 3D Imaging of Hypoxia Using an Activatable Covalent Fluorescent Probe Compatible with Tissue Clearing2024

    • Author(s)
      Daichi M. Sakamoto; Iori Tamura; Bo Yi; Sho Hasegawa; Yutaro Saito; Naoki Yamada; Yoichi Takakusagi; Shimpei I. Kubota; Minoru Kobayashi; Hiroshi Harada; Kenjiro Hanaoka; Masayasu Taki; Masaomi Nangaku; Kazuki Tainaka; Shinsuke Sando
    • Journal Title

      ACS Nano

      Volume: 18 Issue: 6 Pages: 5176-5179

    • DOI

      10.1021/acsnano.3c12716

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ZBTB2 is recruited to a specific subset of HIF-1 target loci to facilitate full gene expression under hypoxia2023

    • Author(s)
      Chow CCT; Kobayashi M; Kambe G; *Harada H
    • Journal Title

      Journal of Molecular Biology

      Volume: 435 Issue: 15 Pages: 168162-168162

    • DOI

      10.1016/j.jmb.2023.168162

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Inhibition of transforming growth factor‐β signals suppresses tumor formation by regulation of tumor microenvironment networks2023

    • Author(s)
      Tokizaki Shiori、Podyma‐Inoue Katarzyna A.、Matsumoto Takehisa、Takahashi Kazuki、Kobayashi Miho、Ibi Haruka、Uchida Shizuka、Iwabuchi Sadahiro、Harada Hiroyuki、Hashimoto Shinichi、Miyazono Kohei、Shirouzu Mikako、Watabe Tetsuro
    • Journal Title

      Cancer Science

      Volume: 115 Issue: 1 Pages: 211-226

    • DOI

      10.1111/cas.16006

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] ZBTB2 links p53 deficiency to HIF-1-mediated hypoxia signaling to promote cancer aggressiveness2022

    • Author(s)
      Koyasu Sho、Horita Shoichiro、Saito Keisuke、Kobayashi Minoru、Ishikita Hiroshi、Chow Christalle CT、Kambe Gouki、Nishikawa Shigeto、Menju Toshi、Morinibu Akiyo、Okochi Yasushi、Tabuchi Yoshiaki、Onodera Yasuhito、Takeda Norihiko、Date Hiroshi、Semenza Gregg L、Hammond Ester M、Harada Hiroshi
    • Journal Title

      EMBO reports

      Volume: 24 Issue: 1 Pages: 54042-54042

    • DOI

      10.15252/embr.202154042

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Proteolysis of a histone acetyl reader, ATAD2, induces chemoresistance of cancer cells under severe hypoxia by inhibiting cell cycle progression in S phase2022

    • Author(s)
      Haitani Takao、Kobayashi Minoru、Koyasu Sho、Akamatsu Shusuke、Suwa Tatsuya、Onodera Yasuhito、Nam Jin-Min、Nguyen Phuong Thi Lien、Menju Toshi、Date Hiroshi、Ogawa Osamu、Harada Hiroshi
    • Journal Title

      Cancer Letters

      Volume: 528 Pages: 76-84

    • DOI

      10.1016/j.canlet.2021.12.028

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] SPINK1 as a plasma marker for tumor hypoxia and a therapeutic target for radiosensitization.2021

    • Author(s)
      Suwa T, Kobayashi M, Shirai Y, Nam JM, Tabuchi Y, Takeda N, Akamatsu S, Ogawa O, Mizowaki T, Hammond EM, Harada H.
    • Journal Title

      JCI Insight.

      Volume: 6 Issue: 21

    • DOI

      10.1172/jci.insight.148135

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] An Overview of the Recent Development of Anticancer Agents Targeting the HIF-1 Transcription Factor2021

    • Author(s)
      Shirai Y, Chow CCT, Kambe G, Suwa T, Kobayashi M, Takahashi I, Harada H, Nam JM.
    • Journal Title

      Cancers

      Volume: 13 Issue: 11 Pages: 2813-2813

    • DOI

      10.3390/cancers13112813

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tumor microenvironment and radioresistance.2021

    • Author(s)
      Suwa T, Kobayashi M, Nam JM, Harada H.
    • Journal Title

      Exp Mol Med.

      Volume: 53 Issue: 6 Pages: 1029-1029

    • DOI

      10.1038/s12276-021-00640-9

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Decreased expression levels of a histone acetyl reader, ATAD2, induces chemoresistance of cancer cells under severe hypoxia by inhibiting cell cycle progression in S phase2022

    • Author(s)
      灰谷 崇夫、小林 稔、原田 浩
    • Organizer
      第18回がんとハイポキシア研究会
    • Related Report
      2022 Research-status Report
  • [Book] がん微小環境に1細胞レベルで挑む2021

    • Author(s)
      藤田 直也
    • Total Pages
      220
    • Publisher
      羊土社
    • ISBN
      9784758103961
    • Related Report
      2021 Research-status Report
  • [Remarks] 京都大学大学院生命科学研究科原田研究室

    • URL

      https://www.rbc.kyoto-u.ac.jp/cancer_biology/

    • Related Report
      2023 Annual Research Report
  • [Remarks] 京都大学大学院 生命科学研究科 がん細胞生物学分野

    • URL

      http://www.rbc.kyoto-u.ac.jp/cancer_biology/

    • Related Report
      2022 Research-status Report 2021 Research-status Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

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