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

Development of methodology for monitoring DNA repair process in living cells using a super-resolution microscope

Research Project

Project/Area Number 18K19848
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 63:Environmental analyses and evaluation and related fields
Research InstitutionIbaraki University

Principal Investigator

Nakamura Asako  茨城大学, 理工学研究科(理学野), 教授 (70609601)

Project Period (FY) 2018-06-29 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
KeywordsDNA損傷 / H2AX / 超解像度顕微鏡 / リアルタイムイメージング / 超解像度位相差顕微鏡
Outline of Final Research Achievements

The purpose of this research plan is to develop a method that can monitor intra-cellular localization of post-translational modified proteins in living cells. In brief, we focused on the phosphorylated histone H2AX protein (g-H2AX), which is a marker of DNA double-strand break. We aimed to develop real-time imaging of γ-H2AX by using the novel ultra-resolution wide-field laser phase-contrast microscope and to clear the spatial detailed mechanism of induction of DNA damage and its repair process.

Academic Significance and Societal Importance of the Research Achievements

これまでに見ることが出来なかったDNA損傷の発生とその修復過程をリアルタイムにイメージングする手法を確立するものである。傷周辺のヒストン修飾に着目していることから、これまでのように傷に局在する修復タンパク質の挙動をイメージングするのとは全くことなり、傷そのもののダイナミクスをとらえることが可能となる。本研究成果は、DNAに生じた傷の「質」を明確にし、生物影響を理解するための一助となると考えられる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (4 results)

All 2018

All Presentation (4 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Presentation] Monitoring DNA damage levels using γ-H2AX detection in vivo-future application of the assessment of biological effect of radiation exposure-.2018

    • Author(s)
      Nakamura AJ
    • Organizer
      3rd International Symposium of Quantum Beam Science at Ibaraki University
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 老化に伴うDNA損傷修復能力低下の原因解明とその生体影響解析2018

    • Author(s)
      大泉昂之, 中村麻子
    • Organizer
      日本放射線影響学会第61回大会
    • Related Report
      2018 Research-status Report
  • [Presentation] H2AXのDNA損傷修復機能解明を目的としたゲノム部位特異的損傷誘発実験システムの開発2018

    • Author(s)
      ZOU RENQING, 中村麻子
    • Organizer
      日本放射線影響学会第61回大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 老化に伴うDNA損傷修復能力低下の原因解明とその生体影響解析2018

    • Author(s)
      大泉昂之, 中村麻子
    • Organizer
      日本宇宙生物科学会第32回大会
    • Related Report
      2018 Research-status Report

URL: 

Published: 2018-07-25   Modified: 2022-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi