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Study of the mechanism of resumption of development of Strongyloides larvae by perception of host environment

Research Project

Project/Area Number 26460509
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Parasitology (including sanitary zoology)
Research InstitutionUniversity of Miyazaki

Principal Investigator

Nagayasu Eiji  宮崎大学, 医学部, 助教 (20524193)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords糞線虫 / 感染幼虫 / GFAT / 発現調節 / ベネズエラ糞線虫 / ゲノム / トランスプリプトーム / 発育再開 / 動物寄生線虫
Outline of Final Research Achievements

It was not well understood what kind of environmental cues are perceived by Strongyloides infectious larvae (L3i), which leads to changes in gene expression and morphology. In the present study, we especially focused on studying mechanism of regulation of expression of GFAT1 gene, that was identified as one of the genes which showed remarkably up-regulated expression, once larvae are inside the animal host.
Taken the experimental results obtained in the present study together, we concluded that glucose concentration surrounding larvae are the most responsible for the elevation of GFAT1 expression. It was presumed that the elevation of GFAT1 expression is under the control of neurological pathway which involves muscarinic receptors.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (4 results)

All 2016 2015

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

  • [Journal Article] The genomic basis of parasitism in the Strongyloides clade of nematodes2016

    • Author(s)
      Hunt, V. L. Tsai, I. J. Coghlan, A. Reid, A. J. Holroyd, N. Foth, B. J. Tracey, A. Cotton, J. A. Stanley, E. J. Beasley, H. Bennett, H. M. Brooks, K. Harsha, B. Kajitani, R. Kulkarni, A. Harbecke, D. Nagayasu, E et.al
    • Journal Title

      Nature genetics

      Volume: 48 Issue: 3 Pages: 299-307

    • DOI

      10.1038/ng.3495

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] ベネズエラ糞線虫における寄生関連遺伝子ファミリーの機能分化2016

    • Author(s)
      丸山治彦、前田安信、Mondal Shakhinur、長安英治、日野明起菜、菊地泰生
    • Organizer
      第85回日本寄生虫学会大会
    • Place of Presentation
      宮崎市民プラザ(宮崎県・宮崎市)
    • Year and Date
      2016-03-19
    • Related Report
      2015 Research-status Report
  • [Presentation] Prevalence and genetic diversity of Strongyloides stercoralis2015

    • Author(s)
      長安英治, Myo Pa Pa Thet Hnin Htwe Aung, 日野明菜, Wah Win Htike, 丸山治彦
    • Organizer
      第84回日本寄生虫学会大会
    • Place of Presentation
      東京
    • Year and Date
      2015-03-21 – 2015-03-22
    • Related Report
      2014 Research-status Report
  • [Presentation] Secretome analysis of Strongyloides venezuelensis identified soluble and insoluble proteins related to parasitism of the nematode2015

    • Author(s)
      前田安信, Palomares-Ruis Juan Emilio, Karim Nurul, 中武彩子, 長安英治, 日野明起菜, 菊地泰生, 丸山治彦
    • Organizer
      第84回日本寄生虫学会大会
    • Place of Presentation
      東京
    • Year and Date
      2015-03-21 – 2015-03-22
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2018-03-22  

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