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Cellular RNA imaging with membrane-permeable probe

Research Project

Project/Area Number 19K15713
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 37030:Chemical biology-related
Research InstitutionGakushuin University

Principal Investigator

Tomoike Fumiaki  学習院大学, 理学部, 助教 (70708586)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords核酸プローブ / ヒストン様タンパク質 / 細胞内輸送 / 遺伝子検出 / 核酸輸送 / 細胞膜 / 核酸 / RNA / プローブ
Outline of Research at the Start

RNAは細胞内の遺伝子発現とその調整を担っている。また、作られるRNAの種類、量は個々の細胞で異なり、これが細胞の機能や組織の分化を担っている。すでにqPCRやマイクロアレイなど、細胞集団からRNAを抽出し、作られているRNAの種類、量を調べる方法が確立されているが、この方法では個々の細胞のRNAを解析することができない。そこで本研究では、特異的にRNAが検出できる核酸プローブに、膜透過性が報告されている修飾を導入することで自発的に細胞内に局在し、RNAを検出するプローブを開発し、個々の生細胞中のRNAを特異的にイメージングする技術の実現を目指す。

Outline of Final Research Achievements

To detect gene expressions in living cells, we investigated the membrane-permeable nucleic acid probe and the transfection by the modified histone-like proteins. As the membrane-permeable nucleic acid probe, we utilized the phosphorothioate modification into DNA moiety of the probe. Though the probe with this modification can detected the target nucleic acids like the probe without the modification, its transfection efficiency was insufficient to detect the target RNA in living cells.
In the development of the transfection by the modified histone-like proteins, we modified the bacterial and archeal histone-like proteins. Fluorescence microscopy and flow-cytometry indicated that the modified histone-like proteins transfered short nucleic acids into the cells. As the next step, it is necessary to optimize the transfection condition and proteins for the function of transfected nucleic acids.

Academic Significance and Societal Importance of the Research Achievements

核酸プローブを生細胞に効率的に導入することができれば、生体組織での遺伝子発現変化の理解が促進される。本研究で検討した膜透過性プローブおよび改変したヒストン様タンパク質による核酸輸送では、生細胞における遺伝子発現の観察に至らなかったものの、本研究で得られたホスホロチオエート体の核酸プローブの性質および膜透過性が付与されたヒストン様タンパク質の知見は、将来的に生細胞での遺伝子発現イメージングの実現に貢献が期待できる。また、改変されたヒストン様タンパク質は、輸送する核酸が核酸プローブに限定されないため、今後最適化によってヒストン様タンパク質による核酸医薬への貢献も期待できる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (16 results)

All 2022 2021 2020 2019

All Journal Article (10 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 10 results,  Open Access: 2 results) Presentation (5 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Completely Chemically Synthesized Long DNA Can be Transcribed in Human Cells2021

    • Author(s)
      Yamaoka Kazuki、Oikawa Ryota、Abe Naoko、Nakamoto Kosuke、Tomoike Fumiaki、Hashiya Fumitaka、Kimura Yasuaki、Abe Hiroshi
    • Journal Title

      ChemBioChem

      Volume: 22 Issue: 23 Pages: 3273-3276

    • DOI

      10.1002/cbic.202100312

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Intracellular Delivery of Antisense DNA and siRNA with Amino Groups Masked with Disulfide Units2020

    • Author(s)
      Shu Zhaoma、Ota Azumi、Takayama Yukiya、Katsurada Yuri、Kusamori Kosuke、Abe Naoko、Nakamoto Kosuke、Tomoike Fumiaki、Tada Seiichi、Ito Yoshihiro、Nishikawa Makiya、Kimura Yasuaki、Abe Hiroshi
    • Journal Title

      Chemical and Pharmaceutical Bulletin

      Volume: 68 Issue: 2 Pages: 129-132

    • DOI

      10.1248/cpb.c19-00811

    • NAID

      130007793432

    • ISSN
      0009-2363, 1347-5223
    • Year and Date
      2020-02-01
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Chemically synthesized circular RNAs with phosphoramidate linkages enable rolling circle translation2020

    • Author(s)
      Nakamoto Kosuke、Abe Naoko、Tsuji Genichiro、Kimura Yasuaki、Tomoike Fumiaki、Shimizu Yoshihiro、Abe Hiroshi
    • Journal Title

      Chemical Communications

      Volume: - Issue: 46 Pages: 6217-6220

    • DOI

      10.1039/d0cc02140g

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Phosphorothioate Modification of mRNA Accelerates the Rate of Translation Initiation to Provide More Efficient Protein Synthesis2020

    • Author(s)
      Daisuke Kawaguchi, Ayumi Kodama, Naoko Abe, Kei Takebuchi, Fumitaka Hashiya, Fumiaki Tomoike, Kosuke Nakamoto, Yasuaki Kimura, Yoshihiro Shimizu, and Hiroshi Abe
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 59 Issue: 40 Pages: 17403-17407

    • DOI

      10.1002/anie.202007111

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Translational control by secondary-structure formation in mRNA in a eukaryotic system2020

    • Author(s)
      Daisuke Kawaguchi, Saaya Shimizu, Naoko Abe, Fumitaka Hashiya, Fumiaki Tomoike,Yasuaki Kimura, Hiroshi Abe
    • Journal Title

      Nucleosides, Nucleotides and Nucleic Acids

      Volume: 39 Issue: 1-3 Pages: 195-203

    • DOI

      10.1080/15257770.2019.1671593

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Intracellular build-up RNAi with single-strand circular RNAs as siRNA precursors2020

    • Author(s)
      Kimura Yasuaki、Shu Zhaoma、Ito Mika、Abe Naoko、Nakamoto Kosuke、Tomoike Fumiaki、Shuto Satoshi、Ito Yoshihiro、Abe Hiroshi
    • Journal Title

      Chemical Communications

      Volume: 56 Issue: 3 Pages: 466-469

    • DOI

      10.1039/c9cc04872c

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] N6-methyl adenosine in siRNA evades immune response without reducing RNAi activity2019

    • Author(s)
      Akihiro Imaeda, Fumiaki Tomoike, Mayu Hayakawa, Kosuke Nakamoto, Yasuaki Kimura, Naoko Abe, Hiroshi Abe
    • Journal Title

      Nucleosides, Nucleotides and Nucleic Acids

      Volume: 38 Issue: 12 Pages: 972-979

    • DOI

      10.1080/15257770.2019.1641205

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] RNA imaging by chemical probes2019

    • Author(s)
      Tomoike Fumiaki、Abe Hiroshi
    • Journal Title

      Advanced Drug Delivery Reviews

      Volume: 147 Pages: 44-58

    • DOI

      10.1016/j.addr.2019.08.001

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Ceritinib‐associated hyperglycemia in the Japanese Adverse Drug Event Report Database2019

    • Author(s)
      Fujita Haruka、Murakami Takaaki、Tomoike Fumiaki、Yabe Daisuke、Inagaki Nobuya
    • Journal Title

      Journal of Diabetes Investigation

      Volume: - Issue: 3 Pages: 726-730

    • DOI

      10.1111/jdi.13168

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Repertoire of morphable proteins in an organism2019

    • Author(s)
      Izumi Keisuke、Saho Eitaro、Kutomi Ayuka、Tomoike Fumiaki、Okada Tetsuji
    • Journal Title

      PeerJ

      Volume: 8

    • DOI

      10.1101/719260

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 膜透過性を持たせたヒストン様タンパク質による細胞への核酸導入2022

    • Author(s)
      鈴木満美子、友池史明、岡田哲二
    • Organizer
      日本薬学会第142年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] アクリルアミドゲルによるタンパク質結晶の保護2021

    • Author(s)
      室山 晴菜、加藤 誠一、友池 史明、岡田 哲二
    • Organizer
      第94回日本生化学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ハイドロゲルファイバにおけるタンパク質結晶の保護2021

    • Author(s)
      室山 晴菜、永江 峰幸、友池 史明、岡田 哲二
    • Organizer
      化学とマイクロナノシステム学会第44回研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Distance Scoring Analysisによるヒストンタンパク質の解析2019

    • Author(s)
      久富彩友香、友池史明、岡田哲二
    • Organizer
      第42回 日本分子生物学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] タンパク質結晶化後のゲル保護2019

    • Author(s)
      森田惇、友池史明、竹内昌治、岡田哲二
    • Organizer
      第42回 日本分子生物学会年会
    • Related Report
      2019 Research-status Report
  • [Patent(Industrial Property Rights)] タンパク質結晶のハイドロゲル包埋物の作製方法2019

    • Inventor(s)
      友池史明、森田惇、岡田哲二
    • Industrial Property Rights Holder
      学習院大学
    • Industrial Property Rights Type
      特許
    • Filing Date
      2019
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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