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Molecular basis of invasive stages formation in Apicomplexan parasites

Research Project

Project/Area Number 25460515
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Parasitology (including sanitary zoology)
Research InstitutionMie University

Principal Investigator

Kaneko Izumi  三重大学, 医学(系)研究科(研究院), 助教 (20515720)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsマラリア
Outline of Final Research Achievements

AP2-O is an AP2 family transcription factor that is expressed in the mosquito midgut-invading stage, called the ookinete, and is essential for normal morphogenesis of this stage. In this study, we identified the genome-wide target genes of AP2-O by chromatin immunoprecipitation-sequencing and elucidate how this AP2 family transcription factor contributes to the formation of this motile stage. The analysis revealed that AP2-O binds specifically to the upstream genomic regions of more than 500 genes, suggesting that approximately 10% of the parasite genome is directly regulated by AP2-O. These genes are involved in distinct biological processes such as morphogenesis, locomotion, midgut penetration, protection against mosquito immunity and preparation for subsequent oocyst development.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (5 results)

All 2016 2015 2014

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (3 results)

  • [Journal Article] Global transcriptional repression: An initial and essential step for Plasmodium sexual development2015

    • Author(s)
      Yuda M, Iwanaga S, Kaneko I, Kato T.
    • Journal Title

      Proc Natl Acad Sci U S A.

      Volume: 112 Issue: 41 Pages: 12824-12829

    • DOI

      10.1073/pnas.1504389112

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Genome-Wide Identification of the Target Genes of AP2-O, a Plasmodium AP2-Family Transcription Factor2015

    • Author(s)
      Yuda M, Iwanaga S, Kaneko I, Kato T
    • Journal Title

      PLoS Pathog

      Volume: 11 Issue: 5 Pages: 1-27

    • DOI

      10.1371/journal.ppat.1004905

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] ChIP-seq法を用いたマラリア原虫スポロゾイト期の転写因子AP2-Spの全標的遺伝子の同定2016

    • Author(s)
      金子伊澄、岩永史朗、加藤知美、油田正夫
    • Organizer
      日本寄生虫学会
    • 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 Annual Research Report
  • [Presentation] Genome-wide investigation of target genes of a Plasmodium AP2 family transcription factor AP2-O2014

    • Author(s)
      Izumi Kaneko
    • Organizer
      INTERNATIONAL CONGRESS OF PARASITOLOGY
    • Place of Presentation
      MEXICO CITY, MEXICO
    • Year and Date
      2014-08-10 – 2014-08-15
    • Related Report
      2014 Research-status Report
  • [Presentation] Genome-wide investigation of target genes of a Plasmodium AP2 family transcription factor AP2-O2014

    • Author(s)
      Izumi Kaneko
    • Organizer
      INTERNATIONAL CONGRESS OF PARASITOLOGY
    • Place of Presentation
      MEXICO CITY
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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