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Design and synthesis of peptide nucleic acids toward overcoming sequence restrictions in strand invasion

Research Project

Project/Area Number 18K06557
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 47010:Pharmaceutical chemistry and drug development sciences-related
Research InstitutionTeikyo University

Principal Investigator

SUGIYAMA TORU  帝京大学, 薬学部, 准教授 (40242036)

Co-Investigator(Kenkyū-buntansha) 出水 庸介  国立医薬品食品衛生研究所, 有機化学部, 部長 (90389180)
森谷 俊介  帝京大学, 薬学部, 助教 (60717544)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords核酸医薬 / ペプチド核酸 / アンチジーン / 有機化学 / ストランドインベージョン / ゲノム / 人工核酸 / 人工塩基
Outline of Final Research Achievements

We synthesized positively charged analogues of guanine and cytosine. PNA oligomers containing preQ1, a positively charged guanine analogue, exhibited improved affinity for their complementary DNA through electrostatic attraction, and their sequence selectivity was maintained. We also incorporated a cationic cytosine analogue into PNA oligomers. Again, marked improvement in DNA affinity was obtained. Although our original goal was to destabilize PNA-PNA duplexes by introducing modified bases, our newly synthesized two artificial bases rather stabilized PNA-DNA heteroduplexes and may allow direct strand invasion by single-stranded PNA.

Academic Significance and Societal Importance of the Research Achievements

癌や遺伝病、ウイルス性疾患など多くの病気が遺伝子レベルで理解できるようになり、ゲノム情報を病気の治療に活かすための方法論が求められている。本研究は、ウイルスゲノムはもちろん巨大なヒトゲノム中の特定配列を狙い撃ちできるアンチジーン医薬開発を目指した基礎的研究である。DNAのもつ遺伝情報は二重らせん内部に隠されているためアクセスが難しいため研究が遅れているが、ペプチド核酸(PNA)はストランドインベージョンというユニークな結合様式でこの問題を解決できる可能性がある。本研究はPNAに人工塩基を導入することでストランドインベージョンにおける配列制限の克服を目指している。

Report

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

    (14 results)

All 2022 2021 2020 2019 2018

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (10 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] PreQ1 facilitates DNA strand invasion by PNA2022

    • Author(s)
      Shun-suke Moriya, Yuki Yoneta, Keiko Kuwata, Yasutada Imamura, Yosuke Demizu, Masaaki Kurihara, Atsushi Kittaka, and Toru Sugiyama
    • Journal Title

      Peptide Science

      Volume: 2021 Pages: 111-112

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synthesis and characterization of PNA oligomers containing preQ1 as a positively charged guanine analogue2021

    • Author(s)
      Moriya Shun-suke、Shibasaki Hatsune、Kohara Misaki、Kuwata Keiko、Imamura Yasutada、Demizu Yosuke、Kurihara Masaaki、Kittaka Atsushi、Sugiyama Toru
    • Journal Title

      Bioorganic & Medicinal Chemistry Letters

      Volume: 39 Pages: 127850-127850

    • DOI

      10.1016/j.bmcl.2021.127850

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] An approach toward visual detection of single nucleotide polymorphism using pseudocomplementary peptide nucleic acid2020

    • Author(s)
      Shun-suke Moriya, Yuko Sasa, Keiko Kuwata, Yasutada Imamura, Yosuke Demizu, Masaaki Kurihara, Atsushi Kittaka, and Toru Sugiyama
    • Journal Title

      Peptide Science

      Volume: 2019 Pages: 173-174

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] PNA Oligomers Possessing PreQ1 as a Cationic Analogue of Guanine2019

    • Author(s)
      Toru Sugiyama, Hatsune Shibasaki, Shun-suke Moriya, Keiko Kuwata, Yasutada Imamura, Yosuke Demizu, Masaaki Kurihara, and Atsushi Kittaka
    • Journal Title

      Peptide Science

      Volume: 2018 Pages: 44-44

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] PreQ1塩基を持つペプチド核酸の合成とその性質2022

    • Author(s)
      森谷俊介、米田有希、桑田啓子、今村保忠、出水庸介、栗原正明、橘高敦史、杉山 亨
    • Organizer
      日本薬学会第142年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] PreQ1 facilitates DNA strand invasion by PNA2021

    • Author(s)
      森谷俊介、米田有希、桑田啓子、今村保忠、出水庸介、栗原正明、橘高敦史、杉山 亨
    • Organizer
      第58回ペプチド討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] カチオン性グアニンアナログを導入したペプチド核酸オリゴマーによるストランドインベージョンの検討2021

    • Author(s)
      森谷俊介、桑田啓子、今村保忠、出水庸介、栗原正明、橘高敦史、杉山 亨
    • Organizer
      日本薬学会第141年会
    • Related Report
      2020 Research-status Report
  • [Presentation] ペプチド核酸によるdouble duplex invasionを応用した目視判定可能な一塩基多型検出系の検討2020

    • Author(s)
      森谷俊介、笹祐子、桑田啓子、今村保忠、出水庸介、栗原正明、橘高敦史、杉山 亨
    • Organizer
      日本薬学会第140年会
    • Related Report
      2019 Research-status Report
  • [Presentation] An approach toward visual detection of single nucleotide polymorphism using pseudocomplementary peptide nucleic acid2019

    • Author(s)
      Shun-suke Moriya, Yuko Sasa, Keiko Kuwata, Yasutada Imamura, Yosuke Demizu, Masaaki Kurihara, Atsushi Kittaka, and Toru Sugiyama
    • Organizer
      第56回ペプチド討論会
    • Related Report
      2019 Research-status Report
  • [Presentation] 7-Aminomethyl-7-deazaguanineをもつPNAの合成2019

    • Author(s)
      森谷俊介、柴崎初音、桑田啓子、今村保忠、出水庸介、栗原正明、橘高敦史、杉山 亨
    • Organizer
      第45回反応と合成の進歩シンポジウム
    • Related Report
      2019 Research-status Report
  • [Presentation] 新規カチオン性グアニンアナログをもつPNAオリゴマー2019

    • Author(s)
      森谷俊介、柴崎初音、桑田啓子、今村保忠、出水庸介、栗原正明、橘高敦史、杉山 亨
    • Organizer
      日本薬学会第139年会
    • Related Report
      2018 Research-status Report
  • [Presentation] PNA Oligomers Possessing PreQ1 as a Cationic Analogue of Guanine2018

    • Author(s)
      Toru Sugiyama, Hatsune Shibasaki, Shun-suke Moriya, Keiko Kuwata, Yasutada Imamura, Yosuke Demizu, Masaaki Kurihara, and Atsushi Kittaka
    • Organizer
      10th International Peptide Symposium
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 電荷を帯びたグアニンアナログをもつPNAオリゴマーの合成2018

    • Author(s)
      杉山 亨、柴崎初音、森谷俊介、栗原正明、橘高敦史
    • Organizer
      第62回日本薬学会関東支部大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 正電荷を帯びたグアニン誘導体をもつPNAオリゴマーの合成2018

    • Author(s)
      杉山 亨、柴崎初音、森谷俊介、桑田啓子、今村保忠、出水庸介、栗原正明、橘高敦史
    • Organizer
      第36回メディシナルケミストリーシンポジウム
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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