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Multilateral analysis of the fate of chromosome fusions

Research Project

Project/Area Number 20H03183
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 43010:Molecular biology-related
Research InstitutionKyoto University

Principal Investigator

Hayashi Makoto  京都大学, 医学研究科, 客員准教授 (90761099)

Co-Investigator(Kenkyū-buntansha) 加賀谷 勝史  東京大学, 大学院情報理工学系研究科, 特任研究員 (00580177)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2023: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2020: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Keywordsテロメア / 染色体融合 / 細胞周期 / RECQヘリケース / 自然免疫 / cGAS / STING / がん / 有糸分裂 / テロメアクライシス / 染色体不安定化 / テロメア脱保護 / M期停止
Outline of Research at the Start

遺伝情報を運ぶ染色体DNAの末端は、テロメアという特殊な構造で保護されています。しかし保護が解かれて染色体DNAの末端間が融合してしまうと、染色体が不安定化し、細胞のがん化を引き起こしてしまいます。本研究では、染色体融合を持つ細胞を光らせて可視化するという、独自に開発した手法を拡張・応用し、染色体融合が細胞のがん化にどのように寄与するかを明らかにします。また、タキソールやビンクリスチンなどの抗がん剤の薬理作用として我々が発見した「M期テロメア脱保護反応」について、分子機構の解明を目指します。

Outline of Final Research Achievements

In this study, we analyzed the effects of chromosome fusion on cells. In Project 1, we examined the mitotic telomere deprotection phenomenon during the cell cycle arrest in M phase resulting from fusion, elucidating part of the molecular mechanisms involving the RECQ helicase family factors WRN and BLM. In Project 2, we developed reporter cells to analyze in detail the fate of chromosome fusion and investigated the fate of sister chromatid fusion. As a result, we discovered that micronuclei are generated from fusion. Furthermore, using the reporter cells, we conducted a detailed analysis of the innate immune response due to micronuclei, which had been a widely accepted theory. We made a novel finding that micronuclei are not potent inducer of the cGAS-STING-dependent innate immune response pathway.

Academic Significance and Societal Importance of the Research Achievements

本研究成果は,染色体融合が細胞に与える様々な影響の一端についての分子レベルでのメカニズムを明らかにした.これらの知見は,細胞ががん化する過程の理解や,正常な細胞とがん細胞の差異の理解に繋がり,がん治療や遺伝病の新しい治療法開発に貢献する可能性がある.

Report

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

    (27 results)

All 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (5 results) Journal Article (5 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results,  Open Access: 5 results) Presentation (11 results) (of which Int'l Joint Research: 3 results,  Invited: 4 results) Remarks (6 results)

  • [Int'l Joint Research] IFOM ETS(イタリア)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Children's Medical Research Institute(オーストラリア)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] IFOM ETS(イタリア)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Children's Medical Research Institute(オーストラリア)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] CMRI(オーストラリア)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Micronucleus is not a potent inducer of the cGAS/STING pathway2024

    • Author(s)
      Sato Yuki、Hayashi Makoto T
    • Journal Title

      Life Science Alliance

      Volume: 7 Issue: 4 Pages: e202302424-e202302424

    • DOI

      10.26508/lsa.202302424

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A CPC-shelterin-BTR axis regulates mitotic telomere deprotection2024

    • Author(s)
      Romero-Zamora Diana、Rogers Samuel、Low Ronnie Ren Jie、Robinson Andrew B.、Page Scott G.、Lane Blake J. E.、Lamm Noa、Ishikawa Fuyuki、Hayashi Makoto T.、Cesare Anthony J.
    • Journal Title

      bioRxiv

      Volume: -

    • DOI

      10.1101/2024.01.09.574754

    • Related Report
      2023 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] A non-catalytic N-terminus domain of WRN prevents mitotic telomere deprotection2023

    • Author(s)
      Romero-Zamora Diana、Hayashi Makoto T.
    • Journal Title

      Scientific Reports

      Volume: 13:645 Issue: 1 Pages: 1-13

    • DOI

      10.1038/s41598-023-27598-0

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] RECQファミリーヘリカーゼとテロメア制御2021

    • Author(s)
      林眞理
    • Journal Title

      日本応用酵素協会誌

      Volume: 56 Pages: 11-20

    • Related Report
      2021 Annual Research Report
    • Open Access
  • [Journal Article] Chromosome instability induced by a single defined sister chromatid fusion2020

    • Author(s)
      Kagaya Katsushi、Noma-Takayasu Naoto、Yamamoto Io、Tashiro Sanki、Ishikawa Fuyuki、Hayashi Makoto T
    • Journal Title

      Life Science Alliance

      Volume: 3 Issue: 12 Pages: e202000911-e202000911

    • DOI

      10.26508/lsa.202000911

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] AURKB-TRF1-BTR Axis Promotes Mitotic Telomere Deprotection by Counteracting the TRF2 Basic Domain2023

    • Author(s)
      Diana Romero-Zamora*, Samuel Rogers*, Ronnie Ren Jie Low, Alexander Sobinoff, Scott G. Page, Fuyuki Ishikawa, Hilda Pickett, Anthony J. Cesare**, and ○Makoto T. Hayashi**
    • Organizer
      CSHL Meeting Telomere & Telomerase
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] M期テロメア脱保護の分子機構の解明2023

    • Author(s)
      Diana Romero, Sam Rogers, Ronnie Ren Jie Low, Alexander Sobinoff, Scott G. Page, 石川冬木,Hilda Pickett, Anthony J. Cesare, ○林眞理
    • Organizer
      第46回日本分子生物学会年会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 染色体融合に起因する微小核はcGAS/STING経路を活性化しない2023

    • Author(s)
      ○佐藤祐樹,林眞理
    • Organizer
      第75回日本細胞生物学会大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] M期テロメア脱保護の分子機構の解明2023

    • Author(s)
      Diana Romero, Sam Rogers, Ronnie Ren Jie Low, Alexander Sobinoff, Scott G. Page, 石川冬木,Hilda Pickett, Anthony J. Cesare, ○林眞理
    • Organizer
      第75回日本細胞生物学会大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] TRF1-BTR-AURKB Axis Promotes Mitotic Telomere Deprotection by Counteracting TRF22023

    • Author(s)
      Diana Romero-Zamora, Samuel Rogers, Ronnie Ren Jie Low, Lara Abbouche, Vince Murphy, Alexander Sobinoff, Scott G. Page, Fuyuki Ishikawa, Hilda Pickett, Andrew Deans5, Anthony J. Cesare, and Makoto T. Hayashi
    • Organizer
      The International Ataxia-Telangiectasia Workshop 2023
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A non-catalytic N-terminus domain of WRN prevents mitotic telomere deprotection2022

    • Author(s)
      Zamora DR, Hayashi MT
    • Organizer
      The 74th Annual Meeting of the Japan Society for Cell Biology
    • Related Report
      2022 Annual Research Report
  • [Presentation] TRF1-BTR-AURKB経路はTRF2と競合しM期テロメア脱保護を促進する2022

    • Author(s)
      Diana Romero Zamora,Sam Rogers,石川 冬木,Anthony J. Cesare,林 眞理
    • Organizer
      第40回染色体ワークショップ・第21回核ダイナミクス研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 染色体融合可視化システムによる単一姉妹染色分体融合の運命解析2021

    • Author(s)
      ○林 眞理,加賀谷 勝史
    • Organizer
      日本遺伝学会93回大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] M期テロメア脱保護の分子機構解析2021

    • Author(s)
      林眞理、Diana Romero, 石川冬木
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] M期テロメア脱保護の分子機構解析2021

    • Author(s)
      Diana Romero, Sam Rogers, 石川冬木,Anthony J. Cesare, ○林眞理
    • Organizer
      第9回染色体ワークショップ・第20回核ダイナミクス研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 染色体融合可視化システムによる単一姉妹染色分体融合の運命解析2020

    • Author(s)
      林 眞理,加賀谷 勝史
    • Organizer
      日本人類遺伝学回第65回大会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Remarks] 研究室紹介ページ(京都大学)

    • URL

      https://www.med.kyoto-u.ac.jp/organization-staff/research/doctoral_course/r-192/

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
  • [Remarks] 研究室紹介ページ(IFOM ETS)

    • URL

      https://www.ifom.eu/en/cancer-research/researchers/makoto-hayashi.php

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
  • [Remarks] 研究室ホームページ

    • URL

      https://www.mthayashilab.com/

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report 2021 Annual Research Report 2020 Annual Research Report
  • [Remarks] 京都大学ー最新の研究成果を知る

    • URL

      https://www.kyoto-u.ac.jp/ja/research-news/2024-02-08-0

    • Related Report
      2023 Annual Research Report
  • [Remarks] 研究室ホームページ

    • URL

      https://www.med.kyoto-u.ac.jp/organization-staff/research/doctoral_course/r-192/

    • Related Report
      2021 Annual Research Report
  • [Remarks] 研究室ホームページ

    • URL

      https://www.ifom.eu/en/cancer-research/researchers/makoto-hayashi.php

    • Related Report
      2021 Annual Research Report

URL: 

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

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