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Elucidation of environmental dynamics of Campylobacter and development of a seamless foodborne disease control scheme

Research Project

Project/Area Number 18K05535
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38050:Food sciences-related
Research InstitutionKyoto University (2019-2021)
University of Miyazaki (2018)

Principal Investigator

Yamazaki Wataru  京都大学, 東南アジア地域研究研究所, 教授 (70393262)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsカンピロバクター / 養鶏場 / 食鳥処理場 / 野鳥 / 環境水 / 微量ウイルス濃縮 / 牛伝染性リンパ腫 / インフルエンザウイルス / ポリクローナル抗体 / モノクローナル抗体 / 蛍光LAMP法 / リアルタイムPCR法 / 核酸抽出 / 微量ウイルス濃縮技術 / MiVET / クロアカ / 盲腸便 / 環境動態 / 食中毒 / VNC
Outline of Final Research Achievements

The development of a simple DNA extraction method and the use of a fluorescent LAMP method were found to be useful in realizing a highly sensitive rapid test for Campylobacter that can be performed at poultry farms and poultry slaughterhouses. Although we were unable to develop a technique that can detect micro-amount of Campylobacter in the environment with high sensitivity, we found that selection of appropriate antibodies, removal of inhibitory materials by enzyme treatment or other means, and mild and short sample pretreatment were important for establishing the technique. The results of experiments conducted as a comparison during the development process provided important insights that could improve diagnostic capabilities for both human and animal infectious diseases.

Academic Significance and Societal Importance of the Research Achievements

養鶏場や食鳥処理場の現場で実施できる高感度迅速なカンピロバクターのPOCT(Point-of-care testing、その場検査法)の実現には、簡易なDNA抽出法開発の開発と蛍光LAMP法の使用が有用であることを明らかにした。環境サンプルからカンピロバクター等の微量な病原体を培養法に依存することなく高感度に検出する技術確立には、適切な抗体の選別、酵素処理等による阻害物資の除去、マイルドかつ短時間のサンプル前処理等が重要であることがわかった。開発過程における比較対象実験から、微量なインフルエンザウイルスの高感度な検出技術開発や牛伝染性リンパ腫診断のPOCT開発の成功という研究成果が派生した。

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

    (16 results)

All 2021 2020 2019 2018 Other

All Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Open Access: 5 results) Presentation (6 results) (of which Int'l Joint Research: 4 results,  Invited: 4 results) Book (1 results) Remarks (2 results)

  • [Journal Article] Development of a point-of-care test to detect SARS-CoV-2 from saliva which combines a simple RNA extraction method with colorimetric reverse transcription loop-mediated isothermal amplification detection2021

    • Author(s)
      Yamazaki W., Matsumura Y., Thongchankaew-Seo Uraiwan., Yamazaki Y., Nagao M.
    • Journal Title

      Journal of Clinical Virology

      Volume: 136 Pages: 104760-104760

    • DOI

      10.1016/j.jcv.2021.104760

    • NAID

      120007052711

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development and evaluation of a point‐of‐care test with a combination of EZ‐Fast DNA extraction and real‐time PCR and LAMP detection: evaluation using blood samples containing the bovine leukaemia DNA2020

    • Author(s)
      Yamazaki Y., Thongchankaew‐Seo U., Nagao K., Mekata H., Yamazaki W.
    • Journal Title

      Letters in Applied Microbiology

      Volume: 71 Issue: 6 Pages: 560-566

    • DOI

      10.1111/lam.13376

    • NAID

      120006940289

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Application of an improved micro-amount of virion enrichment technique (MiVET) for the detection of avian influenza A virus in spiked chicken meat samples2020

    • Author(s)
      Makino, R. Yamazaki, Y. Nagao, K. Apego, F. V. Mekata, H. Yamazaki, W.
    • Journal Title

      Food and Environmental Virology

      Volume: 12 Issue: 2 Pages: 167-173

    • DOI

      10.1007/s12560-020-09425-1

    • NAID

      120006846485

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] New micro-amount of virion enrichment technique (MiVET) to detect influenza A virus in the duck feces2019

    • Author(s)
      Yamazaki, W., Makino, R., Nagao, K., Mekata, H., Tsukamoto, K.
    • Journal Title

      Transbound. Emerg. Dis.

      Volume: 66 Issue: 1 Pages: 341-348

    • DOI

      10.1111/tbed.13027

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Improving detection accuracy and time for Campylobacter jejuni and Campylobacter coli in naturally infected live and slaughtered chicken broilers using real-time fluorescent LAMP approach2019

    • Author(s)
      Sabike, I. I., Yamazaki, W.
    • Journal Title

      J. Food Protect.

      Volume: 82 Issue: 2 Pages: 189-193

    • DOI

      10.4315/0362-028x.jfp-18-179

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 食肉衛生検査における病原体摘発の重要性2018

    • Author(s)
      山崎 渉
    • Journal Title

      獣医疫学雑誌

      Volume: 22 Pages: 83-86

    • NAID

      130007670917

    • Related Report
      2018 Research-status Report
    • Open Access
  • [Journal Article] Clinical and microbiological characteristics of patients with bacteremia caused by Campylobacter species with an emphasis on the subspecies of C. fetus2018

    • Author(s)
      Liu, Y. H., Yamazaki, W., Huang, Y. T., Liao, C. H., Sheng, W. H., Hsueh, P. R.
    • Journal Title

      Journal of Microbiology, Immunology and Infection

      Volume: 印刷中 Issue: 1 Pages: 1-10

    • DOI

      10.1016/j.jmii.2017.07.009

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] A point-of-care test to detect SARS-CoV-2 from saliva2021

    • Author(s)
      Yamazaki W.
    • Organizer
      1st knowledge sharing activity: PSU-Harvard-Kyoto Collaborative Linkages for Microbial Genome Resources
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Explaining the Social background of the emergence of COVID-19 and the development of point-of-care (POCT) test for its early diagnosis2020

    • Author(s)
      Yamazaki W.
    • Organizer
      CSEAS Colloquium
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Development of micro-amount of virion enrichment technique (MiVET) and application to highly sensitive detection of avian influenza virus from PBS and chicken meat samples2019

    • Author(s)
      Yamazaki, W.
    • Organizer
      United States-Japan cooperative medical science program 54th annual joint panel meeting on cholera and other bacterial enteric infections
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of micro-amount of virion enrichment technique (MiVET) and application to transboundary animal diseases countermeasures2018

    • Author(s)
      Yamazaki, W.
    • Organizer
      ESVV-EPIZONE 2018, 11th International congress for veterinary virology-ESVV 2018, 12th Annual meeting of EPIZONE
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Development of micro-amount of virion enrichment technique (MiVET) and application to transboundary animal diseases countermeasures2018

    • Author(s)
      Yamazaki, W.
    • Organizer
      4th Annual GARA (Global African swine fever research alliance) scientific workshop
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 食肉衛生検査における病原体摘発の重要性2018

    • Author(s)
      山崎 渉
    • Organizer
      第53回獣医疫学会学術集会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Book] パブリックヘルスの今日・明日2021

    • Author(s)
      京都大学 大学院医学研究科 社会健康医学系専攻
    • Total Pages
      228
    • Publisher
      インターメディカ
    • ISBN
      9784899964377
    • Related Report
      2020 Research-status Report
  • [Remarks] 京都大学 東南アジア地域研究研究所

    • URL

      https://kyoto.cseas.kyoto-u.ac.jp/

    • Related Report
      2020 Research-status Report
  • [Remarks] 宮崎大学農学部獣医学科

    • URL

      http://www.agr.miyazaki-u.ac.jp/~vet/vet_HP1.htm

    • Related Report
      2018 Research-status Report

URL: 

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

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