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Analysis of the life cycle of Babesia in ticks and development of transmission-blocking vaccines

Research Project

Project/Area Number 18H02336
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 42020:Veterinary medical science-related
Research InstitutionObihiro University of Agriculture and Veterinary Medicine

Principal Investigator

Xuan Xuenan  帯広畜産大学, 原虫病研究センター, 教授 (10292096)

Co-Investigator(Kenkyū-buntansha) 白藤 梨可  帯広畜産大学, 原虫病研究センター, 准教授 (00549909)
正谷 達謄  岐阜大学, 応用生物科学部, 准教授 (70614072)
山岸 潤也  北海道大学, 人獣共通感染症国際共同研究所, 准教授 (80535328)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2021: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2020: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2019: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2018: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
KeywordsBabesia gibsoni / マダニ / 媒介機構 / ライフサイクル / 組換えワクチン / バベシア / 生活環 / 有性生殖期誘導 / 有性生殖期マーカー分子 / CCp / 伝播阻止ワクチン / 犬バベシア症 / Babesai gibsoni / Babesia microti / 伝播阻止 / ワクチン / 伝搬阻止
Outline of Final Research Achievements

(1) Whole genome analysis of B. gibsoni: the whole genome of the Japanese isolate NRCPD strain has analyzed, its genome database has been established. (2) construction of GFP-B. gibsoni: Recombinant GFP-expressing B. gibsoni traceable in ticks and dogs were constructed. (3) Induction of sexual stages of B. gibsoni: the sexual stages of B. bisoni was successfully induced by xanthrenic acid . (4) Identification of vaccine candidate molecules: CCp1, CCp2, and CCp3, which are sexual stage-specific expression molecules, were identified from the genome database, and anti-recombinant CCp1, CCp2, and CCp3 antibodies have shown to suppress the growth of sexual stage of B. gibbon.

Academic Significance and Societal Importance of the Research Achievements

犬のバベシア症は世界的に広く認められており、その経済的損失は莫大との試算もあり、臨床獣医学領域において最も重要な感染症のひとつとして取り上げられている。また、一部のバベシア属原虫は人にも感染し、新興人獣共通感染症として近年公衆衛生上注目されている。しかしながら、バベシア症に対する有効なワクチンはいまだに開発されていないのが現状である。そこで、本研究では有性生殖期の虫体を特異的に抑制する組換えワクチン開発の可能性を検討し、将来的にはペット産業に大きな脅威を与えている犬バベシア症の制圧に繋がるものと予想され、学術的な貢献のみならず、大きな社会的貢献にもなるものと期待される。

Report

(5 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (16 results)

All 2023 2022 2020 2019 2018

All Journal Article (9 results) (of which Int'l Joint Research: 9 results,  Peer Reviewed: 9 results,  Open Access: 8 results) Presentation (7 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] Identification of three members of the multidomain adhesion CCp family in Babesia gibsoni2023

    • Author(s)
      Li et al.
    • Journal Title

      Acta Trop

      Volume: 241 Pages: 106890-106890

    • DOI

      10.1016/j.actatropica.2023.106890

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Babesia gibsoni2022

    • Author(s)
      Liu Mingming、Igarashi Ikuo、Xuan Xuenan
    • Journal Title

      Trends in Parasitology

      Volume: 38 Issue: 9 Pages: 815-816

    • DOI

      10.1016/j.pt.2022.03.001

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Subolesin vaccination inhibits blood feeding and reproduction of Haemaphysalis longicornis in rabbits2020

    • Author(s)
      Lee et al.
    • Journal Title

      Parasit Vectors

      Volume: 13 Issue: 1 Pages: 478-478

    • DOI

      10.1186/s13071-020-04359-w

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Porin Expression Profiles in Haemaphysalis longicornis Infected With Babesia microti2020

    • Author(s)
      Zheng Weiqing、Umemiya-Shirafuji Rika、Zhang Qian、Okado Kiyoshi、Adjou Moumouni Paul Franck、Suzuki Hiroshi、Chen Haiying、Liu Mingming、Xuan Xuenan
    • Journal Title

      Frontiers in Physiology

      Volume: 11 Pages: 502-502

    • DOI

      10.3389/fphys.2020.00502

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Identification of Haemaphysalis longicornis Genes Differentially Expressed in Response to Babesia microti Infection2020

    • Author(s)
      Zheng Weiqing、Umemiya-Shirafuji Rika、Chen Shengen、Okado Kiyoshi、Adjou Moumouni Paul Franck、Suzuki Hiroshi、Yang Shu、Liu Mingming、Xuan Xuenan
    • Journal Title

      Pathogens

      Volume: 9 Issue: 5 Pages: 378-378

    • DOI

      10.3390/pathogens9050378

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Babesia microti confers macrophage-babed cross-protective immunity against murine malaria2020

    • Author(s)
      Efstratiou et al.
    • Journal Title

      Front Cell Infect Microbiol

      Volume: 10 Pages: 193-193

    • DOI

      10.3389/fcimb.2020.00193

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] ransient Transfection of the Zoonotic Parasite Babesia microti2020

    • Author(s)
      Liu M, Ji S, Rizk MA, Adjou Moumouni PF, Galon EM, Li J, Li Y, Zheng W, Benedicto B, Tumwebaze MA, Asada M, Xuan X
    • Journal Title

      Pathogens

      Volume: 9(2) Issue: 2 Pages: 108-108

    • DOI

      10.3390/pathogens9020108

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Inhibitory effects of the phytohormone inhibitors fluridone and inabenfide against Babesia gibsoni in vitro2019

    • Author(s)
      Liu et al.
    • Journal Title

      Vet Parasitol

      Volume: 265 Pages: 19-23

    • DOI

      10.1016/j.vetpar.2018.11.018

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Establishment of a stable transfection system for genetic manipulation of Babesia gibsoni2018

    • Author(s)
      Liu Mingming、Adjou Moumouni Paul Franck、Asada Masahito、Hakimi Hassan、Masatani Tatsunori、Vudriko Patrick、Lee Seung-Hun、Kawazu Shin-ichiro、Yamagishi Junya、Xuan Xuenan
    • Journal Title

      Parasites & Vectors

      Volume: 11 Issue: 1 Pages: 260-260

    • DOI

      10.1186/s13071-018-2853-1

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Genome editing in the human Babesia parasite Babesia microti using the CRISPR-Cas9 system2019

    • Author(s)
      Liu et al.
    • Organizer
      第65回日本寄生虫学会・日本衛生動物学会北日本支部合同大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Identification and expression of subolesin in Haemaphysalis longicornis2019

    • Author(s)
      Lee et al.
    • Organizer
      27th Conference of the World Association for the Advancement of Veterinary Parasitology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Genome editing of Babesia microti using the CRISPR-Cas9 system2019

    • Author(s)
      Liu et al.
    • Organizer
      27th Conference of the World Association for the Advancement of Veterinary Parasitology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Inhibitory effects of the phytohormone inhibitors fluridone and inabenfide against Babesia gibsoni in vitro2018

    • Author(s)
      Liu et al.
    • Organizer
      第88回日本寄生虫学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Establish of a stable transfection system for genetic manipulation of Babesia gibsoni2018

    • Author(s)
      Liu et al.
    • Organizer
      第161回日本獣医学会(招待講演)
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Identification and expression of subolesin in Haemaphysalis longicornis2018

    • Author(s)
      Lee et al.
    • Organizer
      第88回日本寄生虫学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Prevalence and molecular characterization of tick-borne pathogens amongst sheep and goats in Sudan2018

    • Author(s)
      Lee et al.
    • Organizer
      14th International Congress of Parasitology
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research

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Published: 2018-04-23   Modified: 2024-01-30  

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