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Study of the splicing regulation in response to heat stress.

Research Project

Project/Area Number 21K06018
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 43010:Molecular biology-related
Research InstitutionKobe University

Principal Investigator

INOUE KUNIO  神戸大学, 理学研究科, 教授 (40252415)

Co-Investigator(Kenkyū-buntansha) 松花 沙織  神戸大学, 理学研究科, 講師 (70767251)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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)
Keywords遺伝子発現 / 熱ストレス / 選択的スプライシング / ゼブラフィッシュ
Outline of Research at the Start

選択的スプライシングは、熱ストレス応答に重要な役割を担うと考えられるが、その制御機構や生理的役割については多くの未解明な問題が存在する。本研究では、(1)熱ストレス応答性の選択的スプライシング制御因子の翻訳後制御が熱ストレス応答制御の中核をなしているとの作業仮説を立て、主にヒト培養細胞において、その検証と詳細な分子基盤の解明を行う。また、(2)小型淡水魚ゼブラフィッシュをモデル動物として用い、熱ストレスにより生成する選択的スプライシング産物が動物のストレス応答や恒常性維持にどのような役割を果たすか明らかにする。

Outline of Final Research Achievements

It has been shown that alternative splicing of various genes is regulated in response to heat stress in mammalian cells. Our previous study identified RNA-binding proteins required for the splicing regulation of human hsp105 and tnrc6a genes upon heat stress. However, it has been remained to fully solve the mechanism how the heat stress-responsive alternative splicing is regulated by the RNA-binding proteins such as hnRNPK and SRSF proteins. In the present study, we have identified the amino acid motif of the SRSF proteins, necessary for inducing the heat stress-responsive splicing in mammalian cells. In addition, we are constructing a reporter system to visualize the heat stress-responsive alternative splicing with high sensitivity in zebrafish.

Academic Significance and Societal Importance of the Research Achievements

細胞は各種ストレスを含む細胞環境に応答して遺伝子発現制御を行っている。本研究では温度に依存した選択的スプライシングの誘導機構に関する新たな知見や個体レベルでの理解に結びつく成果をあげつつあり、今後、さまざまな細胞ストレス応答や細胞死における選択的スプライシングを介した遺伝子発現制御機構や、がん化・疾患における異常スプライシング機構の理解にも結びつくものと期待される。

Report

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

    (11 results)

All 2023 2022 2021 Other

All Int'l Joint Research (4 results) Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (3 results)

  • [Int'l Joint Research] ユタ大学(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] ユタ大学(米国)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] ユタ大学(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] ミュンヘン工科大学(ドイツ)

    • Related Report
      2021 Research-status Report
  • [Journal Article] The cardiac neural crest gene MafB ectopically directs CXCR4 expression in the trunk neural crest2023

    • Author(s)
      Tani-Matsuhana Saori、Kawata Yuga、Inoue Kunio
    • Journal Title

      Developmental Biology

      Volume: 495 Pages: 1-7

    • DOI

      10.1016/j.ydbio.2022.12.006

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] The germ cell‐specific TAP‐like protein NXF‐2 forms a novel granular structure and is required for tra‐2 3′ UTR‐dependent mRNA export in Caenorhabditis elegans2022

    • Author(s)
      Miwa Takashi、Ohtani Keigo、Inoue Kunio、Sakamoto Hiroshi
    • Journal Title

      Genes to Cells

      Volume: 27 Issue: 10 Pages: 621-628

    • DOI

      10.1111/gtc.12978

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] SPF45/RBM17-dependent, but not U2AF-dependent, splicing in a distinct subset of human short introns2021

    • Author(s)
      Fukumura Kazuhiro、Yoshimoto Rei、Sperotto Luca、Kang Hyun-Seo、Hirose Tetsuro、Inoue Kunio、Sattler Michael、Mayeda Akila
    • Journal Title

      Nature Communications

      Volume: 12 Issue: 1 Pages: 1-12

    • DOI

      10.1038/s41467-021-24879-y

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Identification of regulatory elements for MafB expression in the cardiac neural crest2021

    • Author(s)
      Tani-Matsuhana Saori、Inoue Kunio
    • Journal Title

      Cells & Development

      Volume: 167 Pages: 203725-203725

    • DOI

      10.1016/j.cdev.2021.203725

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] The RNA transport-related factor NXF-2 forms a novel granular structure in C. elegans germ cells2021

    • Author(s)
      大谷 啓悟, 巳波 孝至, 井上 邦夫, 坂本 博
    • Organizer
      日本RNA学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 線虫C. elegansにおいてクロモドメイン蛋白質MRG-1の阻害はストレス応答系の活性化に伴う成長遅延を誘導する2021

    • Author(s)
      巳波 孝至, 井上 邦夫, 坂本 博
    • Organizer
      日本分子生物学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 新しい分子機構によってスプライシングされるヒトの短いイントロン群2021

    • Author(s)
      福村和宏, 芳本 玲, 廣瀬 哲郎, 井上邦夫, 前田 明
    • Organizer
      日本分子生物学会
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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