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The point of care testing of herpesvirus infection by LAMP method

Research Project

Project/Area Number 16K08947
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Laboratory medicine
Research InstitutionFujita Health University

Principal Investigator

Ihira Masaru  藤田医科大学, 保健学研究科, 教授 (10290165)

Co-Investigator(Kenkyū-buntansha) 榎本 喜彦  藤田医科大学, 医学研究科, 研究員 (00387713)
杉山 博子  藤田医科大学, 医学研究科, 研究員 (10387714)
東本 祐紀  藤田医科大学, 医療科学部, 助教 (20569701)
吉川 哲史  藤田医科大学, 医学部, 教授 (80288472)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
KeywordsLAMP / PSR / Eprobe / HHV-6 / VZV / Point of Care testing / RPA / HDA / HSV / point of care test
Outline of Final Research Achievements

The LAMP method which need six primers has problem to difficult select of primer for sensitive detection methods. In order to solve this problem, we proposed combining recombinase polymerase amplification (RPA) and the LAMP. Lower detection limits of this method(R-LAMP) to detect HHV-6 DNA were 10 copies/ reaction.Next, polymerase spiral reaction (PSR) have been developed to detect VZV DNA. The VZV PSR method could detect 10 copies / reaction of VZV DNA and more sensitive than LAMP. However, turbidity of no template control (NTC) increases by primer dimer. To discriminate between increase of turbidity by primer dimer and DNA amplification, Eprobe was used in PSR. The detection limit of PSR with Eprobe was 10 copies / reaction. However, an increase in the fluorescence intensity of NTC was confirmed by amplification of VZV DNA using PSR with Eprobe. Melting temperature analysis indicated that there was a clear difference in peak fluorescence temperature between NTC and PSR products.

Academic Significance and Societal Importance of the Research Achievements

サンプルから病原体遺伝子を検出することにより迅速診断することは重要である。近年、本邦で発明された迅速に病原遺伝子増幅するLAMP方法がよく使われるようになった。LAMP法は優れた遺伝子増幅法であるが、感度に優れた検出法を構築するのは経験と時間を要する。これらの問題に対し本研究は、感度に優れたLAMP法を簡易に構築することを目的に他の遺伝子増幅法(RPA法)との組み合わせ、または近年報告されたLAMPとは異なる等温増幅方法(PSR法)による検出法を検討した。これらによって簡易に高感度検出法が構築出来れば、遺伝子診断によるPOCTとして臨床でより広く利用できるの可能性がある。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (22 results)

All 2018 2017 2016

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 4 results,  Acknowledgement Compliant: 1 results) Presentation (14 results) (of which Int'l Joint Research: 8 results)

  • [Journal Article] Chromosomally integrated human herpesvirus 6 in the Japanese population.2018

    • Author(s)
      Miura H, Kawamura Y, Hattori F, Kozawa K, Ihira M, Ohye T, Kurahashi H, Yoshikawa T.
    • Journal Title

      J Med Virol.

      Volume: 90 Issue: 10 Pages: 1636-1642

    • DOI

      10.1002/jmv.25244

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Late-phase human herpesvirus 6B reactivation in hematopoietic stem cell transplant recipients.2018

    • Author(s)
      Miura H, Kawamura Y, Hattori F, Tanaka M, Kudo K, Ihira M, Yatsuya H, Takahashi Y, Kojima S, Yoshikawa T.
    • Journal Title

      Transpl Infect Dis

      Volume: 20(4) Issue: 4

    • DOI

      10.1111/tid.12916

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Monitoring shedding of five genotypes of RotaTeq vaccine viruses by genotype-specific real-time RT-PCR assays.2018

    • Author(s)
      RT-PCR assays. Higashimoto Y, Ihira M, Miyazaki Y, Kuboshiki A, Yoshinaga S, Hiramatsu H, Suzuki R, Miyata M, Miura H, Komoto S, Yukitake J, Taniguchi K, Kawamura Y, Yoshikawa T.
    • Journal Title

      J Clin Microbiol

      Volume: 印刷中 Issue: 6 Pages: 589-596

    • DOI

      10.1128/jcm.00035-18

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluating the effectiveness of the universal immunization program against varicella in Japanese children.2017

    • Author(s)
      Hattori F, Miura H, Sugata K, Yoshikawa A, Ihira M, Yahata Y, Kamiya H, Tanaka-Taya K, Yoshikawa T; Nagoya VZV study group
    • Journal Title

      Vaccine

      Volume: 35 Issue: 37 Pages: 4936-4941

    • DOI

      10.1016/j.vaccine.2017.07.090

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Development of real-time RT-PCR assays for detection of three classes of HHV-6A gene transcripts2017

    • Author(s)
      Ihira M, Urashima A, Miura H, Hattori F, Kawamura Y, Sugata K, Yoshikawa T
    • Journal Title

      Journal of Medical Virology

      Volume: 89 Issue: 10 Pages: 1830-1836

    • DOI

      10.1002/jmv.24862

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Rotavirus vaccine strain transmission by vaccinated infants in the foster home2017

    • Author(s)
      Miura H, Kawamura Y, Sugata K, Koshiyama N, Yoshikawa A, Komoto S, Taniguchi K, Ihira M, Yoshikawa T
    • Journal Title

      J Med Virol

      Volume: 89(1) Issue: 1 Pages: 79-84

    • DOI

      10.1002/jmv.24613

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cycling probe-based real-time PCR for the detection of human herpesvirus 6A and B.2016

    • Author(s)
      Ihira M, Yamaki A, Kato Y, Higashimoto Y, Kawamura Y, Yoshikawa T.
    • Journal Title

      J Med Virol.

      Volume: Epub ahead of print Issue: 9 Pages: 000-000

    • DOI

      10.1002/jmv.24513

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] A simple cytogenetic method to detect chromosomally integrated human herpesvirus-6.2016

    • Author(s)
      Ohye T, et al.
    • Journal Title

      J Virol Methods

      Volume: 228 Pages: 74-78

    • DOI

      10.1016/j.jviromet.2015.11.001

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Breakthrough varicella診断におけるdirect LAMP法の有用性2018

    • Author(s)
      東本祐紀、河村吉紀、服部文彦、三浦浩樹、西村尚子、尾崎隆男、井平勝、吉川哲史
    • Organizer
      日本ワクチン学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Molecular epidemiological analysis of rotaviruses obtained from rotavirus-associated encephalitis/encephalopathy patients2018

    • Author(s)
      M Ihira, Y Kawamura,F hattori, H, Miura, Y. Higashimoto, K. Sugata, S. Komoto, K Taniguchi, T.Yoshikawa
    • Organizer
      ESCV
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ロタテックワクチン(RV5)接種後の便中ワクチンウイルス株排泄の解析2018

    • Author(s)
      東本祐紀、井平 勝、三浦浩樹、平松裕、鈴木竜太、河本聡志、谷口孝喜、河村吉紀、吉川哲史第
    • Organizer
      日本臨床ウイルス学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 5歳以下の発熱児におけるEBVCMVHHV-6AHHV-6BHHV-7感染の証明と臨床像解析2018

    • Author(s)
      服部文彦、三浦浩樹、河村吉紀、菅田健、小澤 慶、井平 勝、吉川哲史
    • Organizer
      日本臨床ウイルス学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 健康なiciHHV-6A姉妹例でのHHV-6Bの重感染の証明2018

    • Author(s)
      三浦浩樹、服部文彦、河村吉紀、菅田健、小澤 慶、井平 勝、吉川哲史
    • Organizer
      日本臨床ウイルス学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ロタウイルス脳炎・脳症分離株の分子疫学的解析2018

    • Author(s)
      井平勝、東本祐紀、平松裕、鈴木竜太、三浦浩樹、服部文彦、河村吉紀、菅田健、河本聡志、谷口孝喜、吉川哲史
    • Organizer
      臨床ウイルス学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Inherited chromosomally integrated human herpesvirus 6 in the Japanese population2017

    • Author(s)
      Masaru Ihira,Hiroki Miura, Yoshiki Kawamura, Fumihiko Hattori, Tamae Ohye, Hiroki Kurahashi, Tetsushi Yoshikawa
    • Organizer
      10th international coference on HHV-6 and HHV-7
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Analysis for rotavirus vaccine virus shedding after RotaTeq vaccination.2017

    • Author(s)
      Yuki Higashimoto, Masaru Ihira, Ken Sugata, Satoshi Komoto, Koki Taniguchi, Tetsushi Yoshikawa
    • Organizer
      The 65th Annual Meeting of the Japanese Society for Virology
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] The analysis of the origin of chromosomally integrated fuman herpesvirus 62017

    • Author(s)
      Yoshiki kawamura Yamae Ohye Hiroki miura Yuri Kato Masaru Ihira Hiroki Kurahashi Ttsushi Yoshikawa
    • Organizer
      10th international coference on HHV-6 and HHV-7
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Clinical features of primary human herpesvirus 6B infection in a cohort of acute care vistis2017

    • Author(s)
      Fumihiko Hattori Misa miyake Hiroki Miura Yoshiki Kawamuea Masaru ihira and Tetsushi Yoshikawa
    • Organizer
      10th international coference on HHV-6 and HHV-7
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 5価ロタウイルスワクチン(RotaTeq○R)に含まれる5種類のワクチン株特異的real-time RT-PCR法の構築2017

    • Author(s)
      井平 勝、東本 祐紀 、平松裕之 、鈴木竜太 、服部文彦、三浦浩樹、河村吉紀 ,吉川哲史
    • Organizer
      第58回臨床ウイルス学会
    • Related Report
      2017 Research-status Report
  • [Presentation] Detection of HHV-6 specific miRNAs in clinical specimens.2016

    • Author(s)
      Masaru Ihira, Hiroki Miura, Yuki Higashimoto, Fumihiko Hattori,Yoshiki Kawamura, Ken Sugata, Tetsushi Yoshikawa
    • Organizer
      International Herpesvirus workshop
    • Place of Presentation
      MADISON WISCONSIN USA
    • Year and Date
      2016-07-23
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] The Analysis of the Origin of Chromosomally Integrated Human Herpesvirus 6 in the Japanese population.2016

    • Author(s)
      Yoshiki kawamura, Tamae Ohye, yuri kato, Hiroki Miura, Masaru ihira, Hiroki Kurahashi, Tetsushi Yoshikawa,
    • Organizer
      International Herpesvirus workshop
    • Place of Presentation
      MADISON WISCONSIN USA
    • Year and Date
      2016-07-23
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Late phase Human herpesvirus 6 reactivation in hematopoietic stem cell transplantation.2016

    • Author(s)
      Hiroki Miura, Yoshiki kawamura, Masaru ihira, Tetsushi Yoshikawa.
    • Organizer
      International Herpesvirus workshop
    • Place of Presentation
      MADISON WISCONSIN USA
    • Year and Date
      2016-07-23
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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