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2023 Fiscal Year Final Research Report

Roles of RON3 in the mechanism of ion channel formation in the blood-stage malaria parasites

Research Project

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Project/Area Number 21K06989
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 49040:Parasitology-related
Research InstitutionTottori University

Principal Investigator

ITO Daisuke  鳥取大学, 医学部, 講師 (80609298)

Project Period (FY) 2021-04-01 – 2024-03-31
Keywordsマラリア原虫 / イオンチャネル / タンパク質輸送 / RON3 / タンパク質複合体 / 薬剤耐性
Outline of Final Research Achievements

In order to combat the recurrent emergence of drug-resistant malaria parasites, there is a need to develop new anti-malarial drugs that do not induce resistance. In this study, we aimed to elucidate the function of RON3, a novel molecule involved in the formation of Plasmodium-specific ion channels in P. falciparum-infected erythrocytes. We revealed that the C-terminal fragment of RON3 is important for protein export to erythrocytes, which is essential for ion channel formation. Identifying a new RON3 complex, which may be involved in ion channel formation, has led to the developing of new anti-malarial drugs.

Free Research Field

寄生虫学

Academic Significance and Societal Importance of the Research Achievements

本研究により、赤血球期マラリア原虫におけるRON3を基盤としたイオンチャネル形成機構の一端を明らかにすることができた。同定したRON3複合体、および現在解析を進めているRON3相互作用分子に着目することで、現在問題となっているアルテミシニン耐性原虫に有効であり、複数の作用機序を持つ耐性獲得リスクの低い新機抗マラリア薬の開発に発展することが期待できる。

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Published: 2025-01-30  

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