• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Elucidation of the molecular mechanisms underlying the coupling between DNA repair and cell cycle regulation for the optimization of radiotherapy

Research Project

Project/Area Number 20K08127
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 InstitutionThe University of Tokyo

Principal Investigator

Hosoya Noriko  東京大学, 大学院医学系研究科(医学部), 准教授 (00396748)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
KeywordsDNA修復 / 細胞周期 / がん / 放射線治療
Outline of Research at the Start

がんの放射線治療や抗がん剤治療は、細胞のDNAに外的に二本鎖切断を与えることによってがん細胞だけを特異的に死滅させることを目指した治療であり、有効ながん治療を行うためには、がんにおけるDNA修復の制御異常の特性を捉えることが重要である。本研究では、DNA修復と細胞周期制御をはじめとする他の細胞機能との連携機構に焦点をあて、相同組換え修復関連分子やがん精巣抗原の作用機序の解析を通じてDNA修復を制御する細胞機能ネットワークを分子レベルで解明することにより、放射線治療を含むがん治療の最適化のための治療戦略を提唱するための基本原理を確立することを目指す。

Outline of Final Research Achievements

In order to clarify the link between DNA repair and cell cycle regulation, we investigated the roles of the proteins involved in homologous recombination in cell cycle progression in G0/G1 phase. We found that RAD51 and some other homologous recombination-related proteins promote cell cycle progression in G0/G1 phase, which cannot be explained by their roles in DNA double-strand break repair in the cell nucleus acting in the S and G2 phases.

Academic Significance and Societal Importance of the Research Achievements

相同組換え関連分子が、G0/G1期の細胞周期の進行を制御していることが分かった。このことから、相同組換え関連分子は、S期後半からG2期にかけての細胞核におけるDNAの二本鎖切断に対する修復以外の機能も有していることが示唆され、相同組換え分子の新たな役割を探索するきっかけになった点で意義は大きい。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (11 results)

All 2023 2022 2021 2020

All Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (6 results) (of which Invited: 2 results)

  • [Journal Article] Meiotic chromosome organization and its role in recombination and cancer2023

    • Author(s)
      Morgan Chris、Nayak Aditya、Hosoya Noriko、Smith Gerald R.、Lambing Christophe
    • Journal Title

      Curr Top Dev Biol

      Volume: 145 Pages: 91-126

    • DOI

      10.1016/bs.ctdb.2022.04.008

    • ISBN
      9780128201565
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Implications of the germline variants of DNA damage response genes detected by cancer precision medicine for radiological risk communication and cancer therapy decisions2021

    • Author(s)
      Hosoya Noriko、Miyagawa Kiyoshi
    • Journal Title

      Journal of Radiation Research

      Volume: 62 Issue: Supplement_1 Pages: i44-i52

    • DOI

      10.1093/jrr/rrab009

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Clonal evolution and clinical implications of genetic abnormalities in blastic transformation of chronic myeloid leukaemia.2021

    • Author(s)
      Ochi Y, Yoshida K, Huang YJ, Kuo MC, Nannya Y, Sasaki K, Mitani K, et al.
    • Journal Title

      Nat comm

      Volume: 12 Issue: 1 Pages: 2833-2833

    • DOI

      10.1038/s41467-021-23097-w

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Synaptonemal complex proteins modulate the level of genome integrity in cancers2021

    • Author(s)
      Hosoya Noriko、Miyagawa Kiyoshi
    • Journal Title

      Cancer Science

      Volume: 112 Issue: 3 Pages: 989-996

    • DOI

      10.1111/cas.14791

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] High-throughput functional evaluation of BRCA2 variants of unknown significance.2020

    • Author(s)
      Ikegami, M., Kohsaka, S., Ueno, T., Momozawa, Y., Inoue, S., Tamura, K., Shimomura, A., Hosoya, N., Kobayashi, H., Tanaka, S., Mano, H.
    • Journal Title

      Nature Communications

      Volume: 11 Issue: 1 Pages: 2573-2573

    • DOI

      10.1038/s41467-020-16141-8

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] DNA修復を標的としたがん治療2023

    • Author(s)
      細谷紀子
    • Organizer
      日本放射線腫瘍学会第13回放射線生物学セミナー
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] The roles of the synaptonemal complex protein SYCE3 in inducing genomic instability in cancer2022

    • Author(s)
      細谷紀子、宮川清
    • Organizer
      第81回日本癌学会学術総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 相同組換え修復研究が切り拓く今日のがん治療2021

    • Author(s)
      細谷紀子
    • Organizer
      第58回日本放射線腫瘍学会生物部会学術大会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 慢性骨髄性白血病急性転化のクローン進化および遺伝子異常と予後2021

    • Author(s)
      越智陽太郎, 吉田健一, 南谷泰仁, 佐々木光, 三谷絹子, 細谷紀子, 石川隆之, 大屋敷一馬, 高橋直人, 塩澤裕介, 牧島秀樹, 白石友一, 真田昌, 高折晃史, 宮野悟, 小川誠司
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 慢性骨髄性白血病急性転化におけるクローン進化および遺伝子異常と予後の解析2021

    • Author(s)
      越智陽太郎, 吉田健一, 南谷泰仁, 佐々木光, 三谷絹子, 細谷紀子, 平本展大, 石川隆之, 大屋敷一馬, 高橋直人, 高久智生, 土屋俊, 兼村信宏, 中村信彦, 上田恭典, 吉原哲, 塩澤裕介, 趙蘭英, 竹田淳恵, 綿谷陽作, 奥田瑠璃花, 牧島秀樹, 白石友一, 千葉健一, 田中洋子, 真田昌, 高折晃史, 宮野悟, SHIH Lee-Yung, 小川誠司
    • Organizer
      第83回日本血液学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] The roles of the cancer-testis antigens in regulating the DNA damage response2021

    • Author(s)
      Hosoya Noriko、Miyagawa Kiyoshi
    • Organizer
      第79回日本癌学会学術総会
    • Related Report
      2020 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi