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2019 Fiscal Year Final Research Report

A study towards establishing a cell line depleted of mitochondrial DNA in malaria parasites

Research Project

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Project/Area Number 17K15676
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Parasitology (including sanitary zoology)
Research InstitutionChiba University

Principal Investigator

Hikosaka Kenji  千葉大学, 大学院医学研究院, 講師 (30456933)

Project Period (FY) 2017-04-01 – 2020-03-31
Keywordsマラリア原虫 / ミトコンドリアDNA / rho0細胞 / 組換え原虫
Outline of Final Research Achievements

In malaria parasites, transcriptional and translational mechanisms of mitochondrial DNA (mtDNA) remain unclear. To elucidate these mechanisms, we tried to generate a cell depleted of mtDNA using ethidium bromide (EtBr) in malaria parasites.
Our study showed that the human malaria parasite has higher sensitivity to EtBr compared with a rodent malaria parasite. These findings would provide a valuable information to a study towards establishing a cell line depleted of mitochondrial DNA in malaria parasites.

Free Research Field

寄生虫学

Academic Significance and Societal Importance of the Research Achievements

本研究の継続によりマラリア原虫のミトコンドリアDNA(mtDNA)の転写・翻訳機構が明らかとなれば、その機序はヒトのものとは大きく異なることが期待されるため、新規抗マラリア薬の有用な標的となり得る。また、マラリア原虫でmtDNAを消失させた細胞であるrho0細胞作出技術が確立されれば、同じ生物群に属する寄生生原虫であるトキソプラズマ、コクシジウム、ピロプラズマなどにも応用が効くことが予想され、生物学的に新たな知見が多く得られることが期待できる。

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Published: 2021-02-19  

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