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Functional Interaction between MRE11 and ATM in cytoplasmic stress responses

Research Project

Project/Area Number 20K12162
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 63020:Radiation influence-related
Research InstitutionInternational University of Health and Welfare

Principal Investigator

Kobayashi Junya  国際医療福祉大学, 成田保健医療学部, 教授 (30301302)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsストレス応答 / 酸化ストレス / 脳神経変性 / ATM / MRE11
Outline of Research at the Start

放射線高感受性遺伝病A-TとATLDでは、その原因遺伝子ATM, MRE11が放射線誘発DNA損傷応答に重要な機能を持つことが明らかとなってきているが、これら遺伝病患者が示す進行性小脳失調症の発症機構はいまだ明らかとなっていない。その発症メカニズムに迫るために、近年これら遺伝子の役割が明らかにされつつある細胞質内ストレス応答経路(酸化ストレス応答・細胞質性dsDNA応答)におけるATMとMRE11の役割・機能的相互作用を脳神経幹細胞・血管内皮細胞を用いて明らかにする。さらに応答時のATM, MRE11との結合因子をプロテオミクス解析で同定、機能解明し、進行性小脳失調の発症機構の解明を目指す。

Outline of Final Research Achievements

The aim of this research is to identify the role of ATM and MRE11 in intracellular stress-response of human vascular endothelial cells. We showed that micro-nuclei were induced in vascular endothelial cells after low-dose rate irradiation. Our DIA proteomics analysis suggests the important proteins for micronuclei formation. We also identify 32 kinds of protein, which increased remarkably after irradiation. Among of them, SOS2, DR-6, MEKK4 increased continuously in response to oxidative stress, suggesting that they might be useful for biological effect markers.

Academic Significance and Societal Importance of the Research Achievements

近年、微小核形成は炎症関連因子の分泌機構を活性化し、周辺細胞へ炎症反応を拡大させる可能性が示唆されているが、血管内皮細胞において低線量率放射線照射特異的に微小核形成が誘導されること、またその機構に関与する因子群を明らかにしたことは、今後低線量率放射線被ばく時の血管・循環器系での影響拡大の可能性を検討する上で重要な鍵になると考えられる。また、血管内皮細胞は循環器疾患研究のモデルとなっているが、プロテオミクス解析から低線量率放射線特異的に増加する因子群は低線量率放射線による循環器系疾患の可能性を評価する有力なマーカーとして、将来的に利用できる可能性が考えられる。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (15 results)

All 2023 2022 2021 2020

All Journal Article (11 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 10 results,  Open Access: 8 results) Presentation (4 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results)

  • [Journal Article] TUG1-mediated R-loop resolution at microsatellite loci as a prerequisite for cancer cell proliferation.2023

    • Author(s)
      Suzuki Miho M.、Iijima Kenta、Ogami Koichi、Shinjo Keiko、Murofushi Yoshiteru、Xie Jingqi、Wang Xuebing、Kitano Yotaro、Mamiya Akira、Kibe Yuji、Nishimura Tatsunori、Ohka Fumiharu、Saito Ryuta、Sato Shinya、Kobayashi Junya、Yao Ryoji、Miyata Kanjiro、Kataoka Kazunori、Suzuki Hiroshi I.、Kondo Yutaka.
    • Journal Title

      Nature Communications

      Volume: 14 Issue: 1 Pages: 4521-4521

    • DOI

      10.1038/s41467-023-40243-8

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Bone Marrow Failure and Immunodeficiency Associated with Human RAD50 Variants2023

    • Author(s)
      Takagi Masatoshi、Hoshino Akihiro、Bousset Kristine、R?ddecke Jule、Martin Hanna Luisa、Folcut Iulia、Tomomasa Dan、Yang Xi、Kobayashi Junya、Sakata Naoki、Yoshida Kenichi、Miyano Satoru、Ogawa Seishi、Kojima Seiji、Morio Tomohiro、D?rk Thilo、Kanegane Hirokazu
    • Journal Title

      Journal of Clinical Immunology

      Volume: 43 Issue: 8 Pages: 2136-2145

    • DOI

      10.1007/s10875-023-01591-8

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Implication of E3 ligase RAD18 in UV-induced mutagenesis in human induced pluripotent stem cells and neuronal progenitor cells.2023

    • Author(s)
      Shimada M, Tokumiya T, Miyake T, Tsukada K, Kanzaki N, Yanagihara H, Kobayashi J, Matsumoto Y.
    • Journal Title

      J Radiat Res.

      Volume: 64 Issue: 2 Pages: 343-351

    • DOI

      10.1093/jrr/rrac099

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Analysis method of cellular stress caused by intermediate dose-rate irradiation using a cell lysate array technique.2023

    • Author(s)
      Morishima N, Ogata H, Magae J, Ito Y, Kobayashi J.
    • Journal Title

      Genes Cells

      Volume: 28 Issue: 4 Pages: 288-306

    • DOI

      10.1111/gtc.13011

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Relationship between micronucleus formation and oxidative stress in human vascular endothelial cells under low dose rate irradiation2022

    • Author(s)
      Meng Q, Hayashi I, Anno K, Kobayashi J.
    • Journal Title

      Fundamental Toxicological Sciences

      Volume: 9 Issue: 2 Pages: 47-59

    • DOI

      10.2131/fts.9.47

    • ISSN
      2189-115X
    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Possible relationship between mitochondrial changes and oxidative stress under low dose-rate irradiation2021

    • Author(s)
      Meng Qingmei、Zaharieva Elena Karamfilova、Sasatani Megumi、Kobayashi Junya
    • Journal Title

      Redox Report

      Volume: 26 Issue: 1 Pages: 160-169

    • DOI

      10.1080/13510002.2021.1971363

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Low Dose-Rate Irradiation of Gamma-Rays-Induced Cytotoxic and Genotoxic Alterations in Peripheral Erythrocytes of p53-Deficient Medaka (Oryzias latipes).2021

    • Author(s)
      Sayed AEDH, Nagata K, Nakazawa T, Mitani H, Kobayashi J, Oda S.
    • Journal Title

      Frontiers in Marice Science

      Volume: 8 Pages: 773481-773481

    • DOI

      10.3389/fmars.2021.773481

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Low-dose ionizing radiation suppresses the apoptosis-induced by serum-removal culture2021

    • Author(s)
      Nakamura Y, Katoh S, Kobayashi J, Umeda T, Kobayashi S, Numazawa S.
    • Journal Title

      Fundamental Toxicological Sciences

      Volume: 8 Issue: 7 Pages: 249-260

    • DOI

      10.2131/fts.8.249

    • NAID

      130008141239

    • ISSN
      2189-115X
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Biological Effects of Low Dose and Low Dose Rate Irradiation2021

    • Author(s)
      小林純也
    • Journal Title

      Shika Hoshasen

      Volume: 61 Issue: 1 Pages: 1-5

    • DOI

      10.11242/dentalradiology.61.1

    • NAID

      130008093909

    • ISSN
      0389-9705, 2185-6311
    • Related Report
      2021 Research-status Report
    • Open Access
  • [Journal Article] Diminished or inversed dose-rate effect on clonogenic ability in Ku-deficient rodent cells.2021

    • Author(s)
      Tsuchiya H, Shimada M, Tsukada K, Meng Q, Kobayashi J, Matsumoto Y
    • Journal Title

      Journal of Radiation Research

      Volume: 62 Issue: 2 Pages: 198-205

    • DOI

      10.1093/jrr/rraa128

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] RIF1 controls replication initiation and homologous recombination repair in a radiation dose-dependent manner2020

    • Author(s)
      Saito Y, Kobayashi J, Kanemaki MT, Komatsu K.
    • Journal Title

      Journal of Cell Science

      Volume: 133 Issue: 12

    • DOI

      10.1242/jcs.240036

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Relationship between micronucleus formation and oxidative stress in human vascular endothelial cells under low dose-rate irradiation.2023

    • Author(s)
      Kobayashi J
    • Organizer
      7th International Symposium on the System of Radiological Protection (ICRP2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Relationship between micronucleus formation and oxidative stress in human vascular endothelial cells under low dose-rate irradiation.2021

    • Author(s)
      Meng Q, Kobayashi J.
    • Organizer
      日本放射線影響学会第64回大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 低線量放射線影響研究と放射線生物学教育2021

    • Author(s)
      小林純也
    • Organizer
      放射線生物学東京談話会(東京RBC)
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 低線量放射線の生体影響の解明2020

    • Author(s)
      小林純也
    • Organizer
      日本歯科放射線学会第1回秋季学術大会
    • Related Report
      2020 Research-status Report
    • Invited

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Published: 2020-04-28   Modified: 2025-01-30  

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