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The role of protozoa in the emergence of diseases

Research Project

Project/Area Number 15K14850
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Veterinary medical science
Research InstitutionHokkaido University

Principal Investigator

Nakao Ryo  北海道大学, 獣医学研究院, 准教授 (50633955)

Co-Investigator(Renkei-kenkyūsha) ABE TAKASHI  新潟大学, 自然科学系, 准教授 (30390628)
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords原生生物 / 細菌叢 / 真核生物叢 / タイ / ペプチド核酸 / PNA / アメーバ / メタゲノム / 共生微生物
Outline of Final Research Achievements

The purpose of this project was to understand the role of protozoa in the emergence of diseases by analyzing microbial diversity harbored by protozoan population in the environment. Water and soil samples were collected in Nakhon Nayok, Thailand and subjected to high-throughput sequencing analysis. More than 200 different bacterial genera were obtained in each sample. However, there was no pathogenic bacterial lineage detected in the analyzed samples. In the eukaryote diversity analysis based on 18S ribosomal RNA (rRNA) amplicons, we found that most of the reads obtained were from algae but not from protozoa. In order to reduce the reads from specific organisms in 18S rRNA PCR, we developed a blocking PCR method using a PNA (Peptide Nucleic Acids) specifically designed for target organisms. This method can be applied to future studies to analyze protozoan diversity in the samples from disease endemic areas.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (21 results)

All 2018 2017 2016 2015 Other

All Int'l Joint Research (5 results) Journal Article (9 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 9 results,  Open Access: 9 results,  Acknowledgement Compliant: 3 results) Presentation (6 results) (of which Int'l Joint Research: 2 results) Remarks (1 results)

  • [Int'l Joint Research] University of Zambia(Zambia)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Mahidol University(Thailand)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Mahidol University(Thailand)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] University of Zambia(Zambia)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] Mahidol University(Thailand)

    • Related Report
      2015 Research-status Report
  • [Journal Article] Tick-borne haemoparasites and Anaplasmataceae in domestic dogs in Zambia2018

    • Author(s)
      Qiu Yongjin、Kaneko Chiho、Kajihara Masahiro、Ngonda Saasa、Simulundu Edgar、Muleya Walter、Thu May J、Hang’ombe Bernard、Katakura Ken、Takada Ayato、Sawa Hirofumi、Simuunza Martin、Nakao Ryo
    • Journal Title

      Ticks and Tick-borne Diseases

      Volume: 印刷中 Issue: 4 Pages: 988-995

    • DOI

      10.1016/j.ttbdis.2018.03.025

    • NAID

      120006626572

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First molecular detection and genetic characterization of Coxiella burnetii in Zambian dogs and rodents2018

    • Author(s)
      Chitanga Simbarashe、Simulundu Edgar、Simuunza Martin、Changula Katendi、Qiu Yongjin、Kajihara Masahiro、Nakao Ryo、Syakalima Michelo、Takada Ayato、Mweene S Aaron、Mukaratirwa Samson、Hang’ombe Bernard
    • Journal Title

      Parasites & Vectors

      Volume: 11 Issue: 1 Pages: 40-40

    • DOI

      10.1186/s13071-018-2629-7

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Geographic strain differentiation of Schistosoma japonicum in the Philippines using microsatellite markers.2017

    • Author(s)
      Moendeg KJ, Angeles JMM, Nakao R, Leonardo LR, Fontanilla IKC, Goto Y, Kirinoki M, Villacorte EA, Rivera PT, Inoue N, Chigusa Y, Kawazu SI
    • Journal Title

      PLoS Negl. Trop. Dis.

      Volume: 11 Issue: 7 Pages: e0005749-e0005749

    • DOI

      10.1371/journal.pntd.0005749

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] <i>Listeria monocytogenes</i> serotype 4b strains replicate in monocytes/macrophages more than the other serotypes2017

    • Author(s)
      Hasebe R, Nakao R, Ohnuma A, Yamasaki T, Sawa H, Takai S, Horiuchi M.
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: 79 Issue: 6 Pages: 962-969

    • DOI

      10.1292/jvms.16-0575

    • NAID

      130005695727

    • ISSN
      0916-7250, 1347-7439
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Putative RNA viral sequences detected in an Ixodes scapularis-derived cell line.2016

    • Author(s)
      Nakao R, Matsuno K, Qiu Y, Maruyama J, Eguchi N, Nao N, Kajihara M, Yoshii K, Sawa H, Takada A, Sugimoto C.
    • Journal Title

      Ticks Tick Borne Dis.

      Volume: 8 Issue: 1 Pages: 103-111

    • DOI

      10.1016/j.ttbdis.2016.10.005

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Horizontally transferred genetic elements in the tsetse fly genome: an alignment-free clustering approach using batch learning self-organising map (BLSOM).2016

    • Author(s)
      Nakao R, Abe T, Funayama S, Sugimoto C.
    • Journal Title

      BioMed Res Int.

      Volume: 2016 Pages: 3164624-3164624

    • DOI

      10.1155/2016/3164624

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Draft genome sequences of three strains of Ehrlichia ruminantium, a tick-borne pathogen of ruminants, isolated from Zimbabwe, The Gambia, and Ghana2016

    • Author(s)
      Nakao R, Jongejan F, Sugimoto C
    • Journal Title

      Genome Announc

      Volume: 4 Issue: 3

    • DOI

      10.1128/genomea.00453-16

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Ciliate Paramecium is a natural reservoir of Legionella pneumophila2016

    • Author(s)
      Watanabe K, Nakao R, Fujishima M, Tachibana M, Shimizu T, Watarai M
    • Journal Title

      Sci Rep

      Volume: 6 Issue: 1 Pages: 24322-24322

    • DOI

      10.1038/srep24322

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Draft genome sequences of five Legionella pneumophila strains isolated from environmental water samples2015

    • Author(s)
      Watanabe K, Suzuki H, Nakao R, Shimizu T, Watarai M
    • Journal Title

      Genome Announc

      Volume: 3 Issue: 3 Pages: 3-3

    • DOI

      10.1128/genomea.00474-15

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Potential of cell-free DNA as a novel diagnostic biomarker for parasite infections in dog2017

    • Author(s)
      Akter S, Nakao R, Katakura K
    • Organizer
      26th International Conference of the World Association for the Advancement of Veterinary Parasitology (WAAVP)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] First isolation of Chlamydiae from an ixodid tick collected in Japan2016

    • Author(s)
      Nakao R, Abe T, Qiu Y, Thu MJ, Sugimoto C
    • Organizer
      16th International Symposium on Microbial Ecology
    • Place of Presentation
      Montreal, Canada
    • Year and Date
      2016-09-21
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] ペプチド核酸を用いたマダニ保有原生生物叢解析法の開発2016

    • Author(s)
      中尾 亮、木下豪太、邱 永晋、杉本千尋、片倉 賢
    • Organizer
      第159回日本獣医学会学術集会
    • Place of Presentation
      日本大学生物資源科学部(神奈川県藤沢市)
    • Year and Date
      2016-09-06
    • Related Report
      2016 Research-status Report
  • [Presentation] Seroprevalence of Toxoplasma gondii infection in cats in Myanmar and detection of the parasite DNA from the feline faecal oocysts2016

    • Author(s)
      Bawm S, Phyu AZ, Htun LL, Nakao R, Katakura K
    • Organizer
      第159回日本獣医学会学術集会
    • Place of Presentation
      日本大学生物資源科学部(神奈川県藤沢市)
    • Year and Date
      2016-09-06
    • Related Report
      2016 Research-status Report
  • [Presentation] Molecular and serological evidence of Leishmania infection in stray dogs from visceral leishmaniasis-endemic areas of Bangladesh2016

    • Author(s)
      Akter S, Nakao R, Alam MZ, Yasin G, Katakura K
    • Organizer
      第159回日本獣医学会学術集会
    • Place of Presentation
      日本大学生物資源科学部(神奈川県藤沢市)
    • Year and Date
      2016-09-06
    • Related Report
      2016 Research-status Report
  • [Presentation] 幼虫期Echinococcus multilocularisの根室株miRNA解析2016

    • Author(s)
      今里裕平、中尾 亮、入江隆夫、考口裕一、松本 淳、八木欣平、片倉 賢
    • Organizer
      第159回日本獣医学会学術集会
    • Place of Presentation
      日本大学生物資源科学部(神奈川県藤沢市)
    • Year and Date
      2016-09-06
    • Related Report
      2016 Research-status Report
  • [Remarks]

    • URL

      https://www.vetmed.hokudai.ac.jp/organization/parasitol/index.html

    • Related Report
      2016 Research-status Report

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Published: 2015-04-16   Modified: 2019-03-29  

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