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2021 Fiscal Year Final Research Report

Development of an evaluation system to measure the dynamics of cell wall polysaccharides in filamentous fungi.

Research Project

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Project/Area Number 20K15997
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 47030:Pharmaceutical hygiene and biochemistry-related
Research InstitutionTohoku Medical and Pharmaceutical University

Principal Investigator

Tanaka Yutaka  東北医科薬科大学, 薬学部, 助教 (00613449)

Project Period (FY) 2020-04-01 – 2022-03-31
KeywordsCell wall / Wallome / Aspergillus fumigatus / 細胞壁多糖 / ガラクトフラノース
Outline of Final Research Achievements

By combining fluorescently labeled cell wall polysaccharide-binding proteins, mechanical fluorescence microscopy, and image analysis using software, the researchers were able to quantify changes in the amount and localization of cell wall polysaccharide components of the pathogenic fungus Aspergillus fumigatus during mycelial growth and during death by antifungal drugs, without destroying the fungus' morphology.

Free Research Field

医真菌学

Academic Significance and Societal Importance of the Research Achievements

Aspergillus fumigatusが起こす真菌症の治療には、主にキャンディン系抗真菌薬が用いられます。しかし、本菌には時にこの薬が著効しないケースがあります。この原因は、細胞壁多糖構造を再構成する仕組みや、構造の不均質性にあるのではないか、と考えられていましたが、詳細に調べることはこれまで困難でした。本研究成果によって、本菌の細胞壁多糖の量や局在の変化を、従来よりもより詳細に調べることが可能になりました。

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Published: 2023-01-30  

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