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2015 Fiscal Year Annual Research Report

新たなモデルマウスの創出によるがん幹細胞ニッチとしての低酸素領域の評価

Research Project

Project/Area Number 26670555
Research InstitutionKyoto University

Principal Investigator

平岡 眞寛  京都大学, 医学(系)研究科(研究院), 教授 (70173218)

Co-Investigator(Kenkyū-buntansha) 原田 浩  京都大学, 医学研究科, 准教授 (80362531)
Project Period (FY) 2014-04-01 – 2016-03-31
Keywordsがん / 放射線治療 / がん幹細胞 / 低酸素 / HIF-1
Outline of Annual Research Achievements

我々が確立してきた「低酸素依存的遺伝子発現システム」と「ジフテリア毒素依存的細胞死誘導システム」とを組み合わせ、ジフテリア毒素の投与を引き金に、腫瘍内低酸素がん細胞のアポトーシスを誘導、この細胞群を速やかに排除するモデルマウスを確立した。この実験系を活用した場合に、ジフテリア毒素の投与48時間後に、低酸素マーカー(ピモニダゾール)陽性細胞群がTUNEL染色陽性を示すことを確認した。この様に腫瘍内部の低酸素がん細胞を一掃したタイミングで放射線照射を行うことによって、腫瘍増殖を劇的に抑制できることを確認、もって原発腫瘍内の低酸素がん細胞ががんの再発において重要な役割を担っていることを確認することが出来た。

  • Research Products

    (20 results)

All 2016 2015 Other

All Int'l Joint Research (2 results) Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Acknowledgement Compliant: 5 results,  Open Access: 3 results) Presentation (10 results) (of which Int'l Joint Research: 3 results,  Invited: 10 results) Remarks (2 results)

  • [Int'l Joint Research] University of Oxford(英国)

    • Country Name
      UNITED KINGDOM
    • Counterpart Institution
      University of Oxford
  • [Int'l Joint Research]

    • # of Other Countries
      1
  • [Journal Article] Hypoxia-inducible factor 1-mediated characteristic features of cancer cells for tumor radiaresistance.2016

    • Author(s)
      *Harada H.
    • Journal Title

      J Radiat Res

      Volume: 印刷中

    • DOI

      doi: 10.1093/jrr/rrw012

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Plastic induction of CD133AC133-positive cells in the microenvironment of glioblastoma spheroid.2015

    • Author(s)
      Ohnishi K, Tani T, Bando S, Kubota N, Fujii Y, Hatano O, Harada H.
    • Journal Title

      Int J Oncol

      Volume: 45 Pages: 581-586

    • DOI

      doi: 10.3892/ijo.2014.2483.

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] UCHL1 provides diagnostic and antimetastatic strategies due to its deubiquitinating effect on ​HIF-1α.2015

    • Author(s)
      Goto Y, Zeng L, Yeom CJ, Zhu Y, Morinibu A, Shinomiya K, Kobayashi M, Hirota K, Itasaka S, Yoshimura M, Tanimoto K, Torii M, Sowa T, Menju T, Sonobe M, Kakeya H, Toi M, Date H, Hammond EM, Hiraoka M, *Harada H.
    • Journal Title

      Nature Communications

      Volume: 6 Pages: 6153

    • DOI

      doi: 10.1038/ncomms7153.

    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Aberrant IDH3alpha expression promotes malignant tumor growth by inducing HIF-1-mediated metabolic reprogramming and angiogenesis.2015

    • Author(s)
      Zeng L, Morinibu A, Kobayashi M, Zhu Y, Wang X, Goto Y, Yeom CJ, Zhao T, Hirota K, Shinomiya K, Itasaka S, Yoshimura M, Guo G, Hammond EM, Hiraoka M, *Harada H.
    • Journal Title

      Oncogene

      Volume: 34 Pages: 4758-4766

    • DOI

      doi: 10.1038/onc.2014.411.

    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] A novel method to visually determine the intracellular pH of xenografted tumor in vivo by utilizing fluorescent protein as an indicator.2015

    • Author(s)
      Tanaka S, Harada H, Hiraoka M
    • Journal Title

      Biochem Biophys Res Commun

      Volume: 464 Pages: 1151-1156

    • DOI

      doi: 10.1016/j.bbrc.2015.07.095.

    • Peer Reviewed
  • [Journal Article] PLK1 blockade enhances therapeutic effects of radiation by inducing cell cycle arrest at the mitotic phase.2015

    • Author(s)
      Inoue M, Yoshimura M, Kobayashi M, Morinibu A, Itasaka S, Hiraoka M, *Harada H.
    • Journal Title

      Scientific Reports

      Volume: 5 Pages: 15666

    • DOI

      doi: 10.1038/srep15666.

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Importance of Hypoxic Niche; Lessons from Hypoxia and Cancer Biology.2015

    • Author(s)
      Hiroshi Harada
    • Organizer
      Biochemistry and Molecular Biology 2015 (BMB2015)
    • Place of Presentation
      神戸
    • Year and Date
      2015-12-02 – 2015-12-02
    • Invited
  • [Presentation] Molecular Biology for the Advancement of Cancer Radiotherapy; in the Past and the Future.2015

    • Author(s)
      原田浩
    • Organizer
      日本放射線腫瘍学会 第28回学術大会
    • Place of Presentation
      群馬
    • Year and Date
      2015-11-19 – 2015-11-19
    • Invited
  • [Presentation] Tumor Hypoxia, a Potent Inducer of Malignant Phenotypes of Cancer Cells.2015

    • Author(s)
      HiroshiHarada
    • Organizer
      2nd IFOM-Kyoto University Joint International Symposium
    • Place of Presentation
      京都
    • Year and Date
      2015-10-07 – 2015-10-07
    • Int'l Joint Research / Invited
  • [Presentation] IDH3-HIF-1経路によるがん細胞の糖代謝リプログラミング2015

    • Author(s)
      原田浩
    • Organizer
      第3回癌と代謝研究会
    • Place of Presentation
      金沢
    • Year and Date
      2015-07-16 – 2015-07-16
    • Invited
  • [Presentation] Oxygen-deficiency; Good or Bad for Cancer Therapy?2015

    • Author(s)
      Hiroshi Harada
    • Organizer
      The 97th Kyoto University Hakubi Seminar
    • Place of Presentation
      京都
    • Year and Date
      2015-07-07 – 2015-07-07
    • Int'l Joint Research / Invited
  • [Presentation] 低酸素バイオロジーに基づく放射線治療の新展開2015

    • Author(s)
      原田浩
    • Organizer
      日本医学放射線学会(JRS)中四国地方会 放射線治療懇話会 特別講演
    • Place of Presentation
      山口
    • Year and Date
      2015-06-27 – 2015-06-27
    • Invited
  • [Presentation] 低酸素バイオロジー研究に於けるデータベースの活用例2015

    • Author(s)
      原田浩
    • Organizer
      第13回 がんとハイポキシア研究会
    • Place of Presentation
      三島市
    • Year and Date
      2015-06-06 – 2015-06-06
    • Invited
  • [Presentation] Tumor Hypoxia and Radioresistance2015

    • Author(s)
      Hiroshi Harada
    • Organizer
      The 15th International Congress for Radiation Research (ICRR2015)
    • Place of Presentation
      京都
    • Year and Date
      2015-05-28 – 2015-05-28
    • Int'l Joint Research / Invited
  • [Presentation] 低酸素生物学に基づく生体内低酸素の可視化2015

    • Author(s)
      原田浩
    • Organizer
      第54回日本生体医工学会
    • Place of Presentation
      名古屋
    • Year and Date
      2015-05-08 – 2015-05-08
    • Invited
  • [Presentation] がん幹細胞と腫瘍内低酸素 -癌の診断と治療における重要性と展望-2015

    • Author(s)
      原田浩
    • Organizer
      第74回 日本医学放射線学会
    • Place of Presentation
      横浜
    • Year and Date
      2015-04-18 – 2015-04-18
    • Invited
  • [Remarks] 京都大学 放射線生物研究センター 原田研究室ホームページ

    • URL

      http://radiotherapy.kuhp.kyoto-u.ac.jp/biology/

  • [Remarks] 京都大学大学院 医学研究科 放射線腫瘍学・画像応用治療学 ホームページ

    • URL

      http://radiotherapy.kuhp.kyoto-u.ac.jp/

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Published: 2017-01-06   Modified: 2022-01-31  

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