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Development of a simple gene mutation detection method and verification of the frequency of drug-resistant viruses

Research Project

Project/Area Number 18K05347
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 37030:Chemical biology-related
Research InstitutionNihon University

Principal Investigator

KUWAHARA Masayasu  日本大学, 文理学部, 教授 (40334130)

Co-Investigator(Kenkyū-buntansha) 河島 尚志  東京医科大学, 医学部, 主任教授 (70224772)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
KeywordsRNAウイルス / 等温核酸増幅法 / 逆転写PCR法 / Point of Care Testing / 簡易遺伝子変異検出 / 薬剤耐性ウイルス
Outline of Final Research Achievements

We constructed a detection system that can discriminate influenza mutations in about 30 minutes, although the sensitivity is low. Mutants at the site are known to be involved in the effectiveness of antiviral drugs. Furthermore, we improved this detection system, and then examined its application to simple detection of the new coronavirus. As a result, in the positive/negative judgment, this method showed a high concordance rate with the existing reverse transcription real-time PCR method (TaqMan probe method).

Academic Significance and Societal Importance of the Research Achievements

本法の開発により、変異などを含む核酸バイオマーカーの簡便検出システムが構築された。よって、感染性や薬剤耐性、重篤化等を引き起こすウイルス変異の仕組みの解明や抗ウイルス薬開発の効率化等が期待できる。また、パンデミック対策への利用に加え、究極的には、それに限らず、生活習慣病やその他の感染症等様々な疾患に対する簡易診断への応用も考えられる。

Report

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

    (19 results)

All 2020 2019 2018 Other

All Int'l Joint Research (2 results) Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 7 results,  Invited: 9 results) Book (1 results) Patent(Industrial Property Rights) (4 results)

  • [Int'l Joint Research] カリフォルニア大学サンタバーバラ校/ジョンズ・ホプキンス医学校(米国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] University of California Santa Barbara(米国)

    • Related Report
      2018 Research-status Report
  • [Journal Article] Effects of Modifying Thioflavin T at the N3-Position on Its G4 Binding and Fluorescence Emission2020

    • Author(s)
      Y. Kataoka, H. Fujita, T. Endoh, N. Sugimoto, and M. Kuwahara
    • Journal Title

      Molecules

      Volume: 25 Issue: 21 Pages: 4936-4936

    • DOI

      10.3390/molecules25214936

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] High-Contrast Facile Imaging with Target-Directing Fluorescent Molecular Rotors, the N3-Modified Thioflavin T Derivatives2018

    • Author(s)
      Kataoka Yuka、Fujita Hiroto、Afanaseva Arina、Nagao Chioko、Mizuguchi Kenji、Kasahara Yuuya、Obika Satoshi、Kuwahara Masayasu
    • Journal Title

      Biochemistry

      Volume: 58 Issue: 6 Pages: 493-498

    • DOI

      10.1021/acs.biochem.8b01181

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] PCR法に代わる革新的核酸増幅法を用いた唾液からのCOVID-19の目視による迅速診断法の開発2020

    • Author(s)
      桑原正靖
    • Organizer
      バイオインダストリー協会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] SATIC法の原理とCOVID-19簡易検査への応用2020

    • Author(s)
      桑原正靖
    • Organizer
      第5回Liquid Biopsy研究会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Ultra-high sensitive simple test methods for various biomarkers2019

    • Author(s)
      Kuwahara M
    • Organizer
      Advances in Noncanonical Nucleic Acids 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Method for high sensitive detection of various biomarkers2019

    • Author(s)
      Kuwahara M
    • Organizer
      Asian 3 Roundtable on Nucleic Acids 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of unique nucleic acid materials for diagnosis and therapeutics2019

    • Author(s)
      Kuwahara M
    • Organizer
      Poland-Japan RNA Meeting, Poznan 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of unique nucleic acid materials for diagnosis and therapeutics2018

    • Author(s)
      Masayasu Kuwahara
    • Organizer
      NanoTech Poland 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Target-Directing Fluorescent Molecular Rotors2018

    • Author(s)
      Masayasu Kuwahara
    • Organizer
      Asian 3 Roundtable on Nucleic Acids (A3RONA)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Thioflavin T derivatization: Creation of fluorescence indicators for various targets2018

    • Author(s)
      Masayasu Kuwahara
    • Organizer
      Advances in Noncanonical Nucleic Acids 2018 (ANNA2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Fluorescence Molecular Rotors Thioflavin T Derivatives for Various Targets2018

    • Author(s)
      Masayasu Kuwahara
    • Organizer
      The 2nd International Symposium on Functional Nucleic Acids (FNA2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] ゲノム RNA 簡便検出法の開発2018

    • Author(s)
      藤田博仁, 片岡由佳, 柏木保代, 河島尚志, 桒原正靖
    • Organizer
      日本化学会第99春季年会(2019)
    • Related Report
      2018 Research-status Report
  • [Book] 核酸科学ハンドブック(23章を担当)2020

    • Author(s)
      杉本直己,鳥越秀峰,片平正人,桑原正靖ほか
    • Publisher
      講談社
    • ISBN
      9784065207864
    • Related Report
      2020 Annual Research Report
  • [Patent(Industrial Property Rights)] 新型コロナウイルスSARS-CoV-2の検出キットおよび検出方法2020

    • Inventor(s)
      河島尚志, 桑原正靖, 藤田博仁
    • Industrial Property Rights Holder
      東京医科大学,日本大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-083024
    • Filing Date
      2020
    • Related Report
      2020 Annual Research Report
  • [Patent(Industrial Property Rights)] 核酸増幅反応用多層化プレミクス試薬およびReady to use核酸増幅反応キット2020

    • Inventor(s)
      桑原正靖, 藤田博仁
    • Industrial Property Rights Holder
      日本大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-102479
    • Filing Date
      2020
    • Related Report
      2020 Annual Research Report
  • [Patent(Industrial Property Rights)] 磁気ビーズ撹拌機構を備えた核酸増幅反応用装置2020

    • Inventor(s)
      桑原正靖, 藤田博仁
    • Industrial Property Rights Holder
      日本大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-122057
    • Filing Date
      2020
    • Related Report
      2020 Annual Research Report
  • [Patent(Industrial Property Rights)] 核酸配列等の簡易検出法2019

    • Inventor(s)
      桑原正靖,藤田博仁
    • Industrial Property Rights Holder
      日本大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2019-217075
    • Filing Date
      2019
    • Related Report
      2019 Research-status Report

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

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