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Visualization and detection of the key ribonucleoprotein aggregates of DM1

Research Project

Project/Area Number 17K19199
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Biomolecular chemistry and related fields
Research InstitutionKyoto University

Principal Investigator

Morii Takashi  京都大学, エネルギー理工学研究所, 教授 (90222348)

Project Period (FY) 2017-06-30 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2018: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2017: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywordsトリプレットリピート病 / RNA凝集体 / DNAナノ構造体 / 高速AFM / 核酸関連化学 / トリプレットリピート / CUGリピート / ファージディスプレイ / 筋強直性ジストロフィー
Outline of Final Research Achievements

Myotonic Dystrophy type 1 (DM1) is a trinucleotide repeat expansion disease caused by CTG repeat expansion in the 3'-UTR of DMPK gene. The mRNA derived from DMPK gene with hundreds and thousands of CUG repeats forms toxic foci with RNA-binding proteins such as MBNL1. This research constructed an in vitro model of expanded CUG repeat by using given numbers of CUG repeats. The RNA assembly was constructed on a DNA nanoscaffold by placing RNA with 10, 20 or 28 repeats of CUG in close proximity. The resulting RNA assembly with four or 36 CUG-repeat RNAs was characterized by means of agarose gel electrophoresis and AFM imaging.

Academic Significance and Societal Importance of the Research Achievements

筋強直性ジストロフィー1型を理解するうえでの重要な鍵は、『なぜ、正常な繰り返し数のCUGリピート配列mRNAにMBNL1が結合しても凝集体は形成されないが、繰り返し数が増加したCUGリピート配列mRNAでは凝集体が形成されるのか?』であるが、MBNL1とmRNAが形成する凝集体の構造および物性は未だに不明である。RNA-タンパク質の凝集現象は、アルツハイマー病に関連するアミロイドなどのタンパク質凝集体に比べて化学的知見が乏しく、未開拓な学術領域である。本研究成果によって提供されるRNA集合体を用いることによって詳細な凝集体の解析が可能になると共に、創薬研究が推進される。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (13 results)

All 2019 2018 2017 Other

All Int'l Joint Research (1 results) Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results) Presentation (8 results) (of which Int'l Joint Research: 3 results) Remarks (1 results)

  • [Int'l Joint Research] 浦項工科大学校(韓国)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Highly selective dual sensing of ATP and ADP using fluorescent ribonucleopeptide sensors2019

    • Author(s)
      Nakano Shun、Shimizu Musashi、Dinh Huyen、Morii Takashi
    • Journal Title

      Chemical Communications

      Volume: 55 Issue: 11 Pages: 1611-1614

    • DOI

      10.1039/c8cc09934k

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A diversity-oriented library of fluorophore-modified receptors constructed from a chemical library of synthetic fluorophores2017

    • Author(s)
      S. Nakano, T. Tamura, R.K. Das, E. Nakata, Y.-T. Chang, T. Morii
    • Journal Title

      ChemBioChem

      Volume: 18 Issue: 22 Pages: 2212-2216

    • DOI

      10.1002/cbic.201700403

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Facile conversion of ATP-binding RNA aptamer to quencher-free molecular aptamer beacon2017

    • Author(s)
      Y. Park, D. Nim-anussornkul, T. Vilaivan, T. Morii, B.H. Kim
    • Journal Title

      Bioorganic & Medicinal Chemistry Letters

      Volume: 28 Issue: 2 Pages: 77-80

    • DOI

      10.1016/j.bmcl.2017.12.008

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Fluorescent ribonucleopeptide sensors for selective detection of ATP and ADP2019

    • Author(s)
      Shun Nakano, Musashi Shimizu, Huyen Dinh, Takashi Morii
    • Organizer
      日本化学会第99春季年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Integration of Topologically-Interlocked Functional Structures With a DNA Nanostructure2018

    • Author(s)
      Arivazhagan Rajendran・Seo-jeong Park・Eiji Nakata・Youngjoo Kwon・Takashi Morii
    • Organizer
      第12回バイオ関連化学シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] DNA Catenane and Rotaxane Inside a DNA Origami Frame2018

    • Author(s)
      Arivazhagan Rajendran, Seo-jeong Park, Eiji Nakata, Youngjoo Kwon, Takashi Morii
    • Organizer
      International Symposium on Nucleic Acids Chemistry 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dual sensing of ATP and ADP by fluorescent ribonucleopeptide sensors2018

    • Author(s)
      Shun Nakano, Musashi Shimizu, Takashi Morii
    • Organizer
      International Symposium on Nucleic Acids Chemistry 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Supramolecular Assemblies of Mechanically Interlocked Components Inside a DNA Origami Frame2018

    • Author(s)
      A. Rajendran, S.J. Park, E. Nakata, Y. Kwon, T. Morii
    • Organizer
      日本化学会第98春季年会2018
    • Related Report
      2017 Research-status Report
  • [Presentation] Assembly of DNA Rotaxane and Catenane Inside a DNA Origami Frame2017

    • Author(s)
      A. Rajendran, S.-J. Park, E. Nakata, Y. Kwon, T. Morii
    • Organizer
      第11回バイオ関連化学シンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] 蛍光分子ライブラリーとリボヌクレオペプチドリセプターを利用したセンサーの作製2017

    • Author(s)
      仲野瞬,田村友樹,Das Raj Kumar,中田栄司,Chang Young-Tae,森井 孝
    • Organizer
      第11回バイオ関連化学シンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] Selection of biosensors from a library of fluorescent ribonucleopeptide receptors2017

    • Author(s)
      S. Nakano, T. Tamura, Das Raj Kumar,E. Nakata, Y.T. Chang, T. Morii
    • Organizer
      International Symposium on Nucleic Acids Chemistry /The 1st Annual Meeting of Japan Society of Nucleic Acids Chemistry
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Remarks] 京都大学エネルギー理工学研究所生物機能化学研究分野 ホームページ

    • URL

      http://www.iae.kyoto-u.ac.jp/material/index.html

    • Related Report
      2017 Research-status Report

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Published: 2017-07-21   Modified: 2021-01-27  

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