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Toward the establishment of functional RNA regulatory networks that support diverse biological activities

Research Project

Project/Area Number 18K06055
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 InstitutionThe University of Tokyo

Principal Investigator

Tomioka Masahiro  東京大学, 大学院理学系研究科(理学部), 助教 (40466800)

Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords選択的スプライシング / インスリン / 学習 / 化学走性 / 産卵 / 線虫 / 受容体型チロシンキナーゼ / グルコース / ジアシルグリセロール / プロテインキナーゼC / RNA結合タンパク質 / ホスホリパーゼC / ニューロペプチド / Muscleblind-like protein / CRISPR/Cas9 / 学習行動 / 神経細胞 / RNAスプライシング / C. elegans / MBNL / 選択的RNAスプライシング / トランスクリプトーム解析 / 遺伝子制御ネットワーク
Outline of Final Research Achievements

To diversify the genetic information in their genomes, organisms generate multiple messenger RNAs from a single gene through a process called "alternative RNA splicing" to produce diverse proteins necessary for the structure and function of living organisms. The purpose of this study was to clarify the role and function of this series of processes in biological phenomena using C. elegans. As a result of our research, we identified a splicing regulator involved in determination of the timing of egg laying, as well as a splicing regulator involved in learning behavior and candidates of the target molecules in C. elegans. Furthermore, we clarified the regulatory function by a particular protein isoform produced by a splicing regulator in the learning behavior.

Academic Significance and Societal Importance of the Research Achievements

本研究により明らかにした、線虫の産卵のタイミングや学習行動を制御する分子群と同様の性質を持つ分子群(ホモログ)は哺乳類を含む異なる種にも存在する。従って、本研究を手掛かりに、線虫のみならず種間を通じて共通する分子機構の理解につながる可能性がある。本研究で注目した選択的スプライシングの破綻は様々な疾患と関連があることが分かっており、今後の研究の進展により疾患の原因の解明に貢献できる可能性がある。さらに、本研究で線虫が飢餓の危険を避け生存確率を上げるための仕組みの一端を明らかにしたことは、動物の行動を司るしくみを理解する上で学術的意義があるといえる。

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (13 results)

All 2023 2022 2021 2020 2019 2018

All Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (9 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Involvement of HECT-type E3 ubiquitin ligase genes in salt chemotaxis learning in Caenorhabditis elegans2022

    • Author(s)
      Yasuaki Ike, Masahiro Tomioka, Yuichi Iino
    • Journal Title

      Genetics

      Volume: 220(4) Issue: 4

    • DOI

      10.1093/genetics/iyac025

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Insulin/IGF signaling regulates presynaptic glutamate release in aversive olfactory learning.2022

    • Author(s)
      Du Cheng, James S Lee, Maximillian Brown, Margaret S Ebert, Patrick T McGrath, Masahiro Tomioka, Yuichi Iino, Cornelia I Bargmann
    • Journal Title

      Cell reports

      Volume: 41(8) Issue: 8 Pages: 111685-111685

    • DOI

      10.1016/j.celrep.2022.111685

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] DAF-2c signaling promotes taste avoidance after starvation in Caenorhabditis elegans by controlling distinct phospholipase C isozymes2022

    • Author(s)
      Masahiro Tomioka, Moon Sun Jang, Yuichi Iino
    • Journal Title

      Communications Biology

      Volume: 5 Issue: 1 Pages: 30-30

    • DOI

      10.1038/s42003-021-02956-8

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] DAF-16/FOXO Promotes Taste Avoidance Learning Independently of Axonal Insulin-Like Signaling2019

    • Author(s)
      Takashi Nagashima, Yuichi Iino, Masahiro Tomioka
    • Journal Title

      PLoS Genet.

      Volume: 15 Issue: 7 Pages: e1008297-e1008297

    • DOI

      10.1371/journal.pgen.1008297

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 線虫C. elegansにおける糖濃度学習の機能解析2023

    • Author(s)
      富永 慶子、富岡 征大、飯野 雄一
    • Organizer
      日本動物学会関東支部第75回大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Functions of insulin-like peptide signaling in the C. elegans nervous system2021

    • Author(s)
      Masahiro Tomioka
    • Organizer
      Kick-off Symposium of “International Research on Regulation of Insulin-Like Activities for Extension of Health Life Span”
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 線虫の味覚における記憶学習を制御する分子機構2021

    • Author(s)
      富岡 征大
    • Organizer
      生理研研究会2021 「記憶・学習の多角的理解に向けたアプローチ」
    • Related Report
      2021 Research-status Report
  • [Presentation] 異なる細胞内部位で学習行動を制御するインスリン受容体アイソフォームの働き2020

    • Author(s)
      富岡 征大、Moonsun Jang、飯野 雄一
    • Organizer
      第93回 日本生化学会大会
    • Related Report
      2020 Research-status Report
  • [Presentation] The function of axonal DAF-2c signaling in taste avoidance learning in C. elegans2019

    • Author(s)
      Masahiro Tomioka and Yuichi Iino
    • Organizer
      22st International C. elegans Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 線虫C. elegansの学習記憶に依存した行動切り替えを制御するインスリン経路の働き2019

    • Author(s)
      富岡 征大、ジャン ムンソン、飯野 雄一
    • Organizer
      日本動物学会 第90回 大阪大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 線虫C. elegansの味覚忌避学習を制御するインスリン受容体アイソフォームの働き2019

    • Author(s)
      富岡 征大、永嶋 宇、ジャン ムンソン、飯野 雄一
    • Organizer
      第42回 日本分子生物学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] 線虫の学習行動から見たスプライシング制御因子の機能2018

    • Author(s)
      昆野史弥、富岡征大、飯野雄一
    • Organizer
      線虫の未来を創る会/Future of the nematodes studies
    • Related Report
      2018 Research-status Report
  • [Presentation] 線虫の学習行動から見たスプライシング制御因子の機能2018

    • Author(s)
      昆野史弥、富岡征大、飯野雄一
    • Organizer
      第41回日本分子生物学会年会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2024-01-30  

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