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The mechanism of amplification in DNA-damage signaling for enhancement of radiosensitivity

Research Project

Project/Area Number 23791434
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Radiation science
Research InstitutionTohoku University (2012)
Nagasaki University (2011)

Principal Investigator

SUZUKI Masatoshi  東北大学, 加齢医学研究所, 助教 (60515823)

Project Period (FY) 2011 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
KeywordsDNA二重鎖切断 / 放射線誘発フォーカス形成 / 老化様増殖停止 / 生細胞イメー ジング / 乳がん / 生細胞ライブイメージング / 53BP1
Research Abstract

DNA double-strand breaks trigger activation of signal transduction pathways including induction of cell death. Recently, it is suggested that the amplification of DNA damage signaling could be related to the effective cell death induction. In this study, we revealed that the amplification of DNA-damage signaling was suppressed in tumor cell lines.We also demonstrated cell cycle phase-dependency in the amplification of DNA-damage signaling.

Report

(3 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Research-status Report
  • Research Products

    (18 results)

All 2013 2012 2011 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (11 results) Remarks (1 results)

  • [Journal Article] Persistent amplification of DNA damage signal involved in replicative senescence of normal human diploid fibroblasts2012

    • Author(s)
      Suzuki M, Suzuki K, Kodama S, Yamashita S, Watanabe M
    • Journal Title

      Oxid Med Cell Longev

      Volume: 2012 Pages: 310534-310534

    • DOI

      10.1155/2012/310534

    • NAID

      120006985491

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Live-Cell Imaging Visualizes Frequent Mitotic Skipping during Senescence-Like Growth Arrest in Mammary Carcinoma Cells Exposed to Ionizing Radiation2012

    • Author(s)
      Suzuki M, Yamauchi M, Oka Y, Suzuki K, Yamashita S
    • Journal Title

      Int J Radiat Oncol Biol Phys

      Volume: 83(2) Issue: 2 Pages: e241-e250

    • DOI

      10.1016/j.ijrobp.2011.12.003

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Acceleration of astrocytic differentiation in neural stem cells surviving X-irradiation2012

    • Author(s)
      Ozeki A, Suzuki K, Suzuki M, Ozawa H, Yamashita S:
    • Journal Title

      Neuroreport

      Volume: 23(5) Issue: 5 Pages: 290-3

    • DOI

      10.1097/wnr.0b013e3283509a79

    • NAID

      120006985366

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Mode of ATM-dependent suppression of chromosome translocation.2011

    • Author(s)
      Yamauchi M, Suzuki K, Oka Y, Suzuki M, Kondo H, Yamashita S
    • Journal Title

      Biochem Biophys Res Commun

      Volume: 416(1-2) Issue: 1-2 Pages: 111-118

    • DOI

      10.1016/j.bbrc.2011.11.006

    • NAID

      120006985345

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Persistence and Dynamics of DNA Damage Signal Amplification Determined by Microcolony Formation and Live-cell Imaging2011

    • Author(s)
      Oka Y, Yamauchi M, Suzuki M, Yamashita S, Suzuki K
    • Journal Title

      Journal of Radiation Research

      Volume: 52 Issue: 6 Pages: 766-774

    • DOI

      10.1269/jrr.10164

    • NAID

      10029653065

    • ISSN
      0449-3060, 1349-9157
    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Dedifferentiation of human primary thyrocytes into multilineage progenitor cells without gene introduction2011

    • Author(s)
      Suzuki K, et al
    • Journal Title

      PLoS One

      Volume: 6 Issue: 4 Pages: e19354-e19354

    • DOI

      10.1371/journal.pone.0019354

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Presentation] ATM-p53経路が高線量放射線照射と併用するパクリタキセルへの感受性に影響を及ぼす可能性2013

    • Author(s)
      鈴木正敏、鈴木啓司、桑原義和、山下俊一、福本学
    • Organizer
      第15回癌治療増感研究シンポジウム
    • Place of Presentation
      奈良県
    • Year and Date
      2013-02-10
    • Related Report
      2012 Final Research Report
  • [Presentation] 高線量放射線照射と同時併用のパクリタキセル処理が誘発する細胞死にp53遺伝子状態が及ぼす影響2012

    • Author(s)
      鈴木正敏、鈴木啓司、山下俊一
    • Organizer
      日本癌学会第71回学術総会
    • Place of Presentation
      北海道
    • Year and Date
      2012-09-20
    • Related Report
      2012 Final Research Report
  • [Presentation] p53-p21経路に依存した放射線誘発分裂期スキッピングの誘導2012

    • Author(s)
      鈴木正敏、山内基弘、鈴木啓司、山下俊一
    • Organizer
      日本放射線影響学会第55回大会
    • Place of Presentation
      宮城県
    • Year and Date
      2012-09-06
    • Related Report
      2012 Final Research Report
  • [Presentation] p53-p21経路に依存した放射線誘発分裂期スキッピングの誘導2012

    • Author(s)
      鈴木正敏
    • Organizer
      日本放射線影響学会 第55回大会
    • Place of Presentation
      宮城県
    • Related Report
      2012 Annual Research Report
  • [Presentation] 高線量放射線照射と同時併用のパクリタキセル処理が誘発する細胞死にp53遺伝子状態が及ぼ す影響2012

    • Author(s)
      鈴木正敏
    • Organizer
      日本癌学会 第71回学術総会
    • Place of Presentation
      北海道
    • Related Report
      2012 Annual Research Report
  • [Presentation] 放射線誘発老化様増殖停止誘導過程における分裂期のスキッピング2011

    • Author(s)
      鈴木正敏、鈴木啓司、山下俊一
    • Organizer
      日本放射線影響学会第54回大会
    • Place of Presentation
      兵庫県
    • Year and Date
      2011-11-19
    • Related Report
      2012 Final Research Report
  • [Presentation] DNA損傷分子マーカーによる次世代細胞遺伝学的線量評価2011

    • Author(s)
      鈴木啓司、山内基弘、鈴木正敏、山下俊一
    • Organizer
      日本放射線影響学会第54回大会
    • Place of Presentation
      兵庫県
    • Year and Date
      2011-11-17
    • Related Report
      2012 Final Research Report
  • [Presentation] X線マイクロビーム局所照射による神経幹細胞分化の促進2011

    • Author(s)
      鈴木啓司、尾関あゆみ、鈴木正敏、山下俊一
    • Organizer
      日本放射線影響学会第54回大会
    • Place of Presentation
      兵庫県
    • Year and Date
      2011-11-17
    • Related Report
      2012 Final Research Report
  • [Presentation] Ionizing radiation frequently triggers mitosis skipping resulting in a senescence-like growth arrest2011

    • Author(s)
      鈴木正敏、鈴木啓司、山下俊一
    • Organizer
      第70回日本癌学会学術総会
    • Place of Presentation
      愛知県
    • Year and Date
      2011-10-03
    • Related Report
      2012 Final Research Report
  • [Presentation] 放射線誘発老化様増殖停止誘導過程における分裂期のスキッピング2011

    • Author(s)
      鈴木正敏、鈴木啓司、山下俊一
    • Organizer
      日本放射線影響学会第54回大会
    • Place of Presentation
      兵庫
    • Related Report
      2011 Research-status Report
  • [Presentation] Ionizing radiation frequently triggers mitosis skipping resulting in a senescence-like growth arrest2011

    • Author(s)
      鈴木正敏、鈴木啓司、山下俊一
    • Organizer
      第70回日本癌学会学術総会
    • Place of Presentation
      愛知
    • Related Report
      2011 Research-status Report
  • [Remarks]

    • URL

      http://www2.idac.tohoku.ac.jp/dep/path/

    • Related Report
      2012 Final Research Report

URL: 

Published: 2011-08-05   Modified: 2019-07-29  

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