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2023 Fiscal Year Final Research Report

Targeting basal autophagy as therapeutic drugs in neurodegenerative diseases

Research Project

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Project/Area Number 21K07422
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52020:Neurology-related
Research InstitutionKyoto Prefectural University of Medicine

Principal Investigator

Yoshihisa Watanabe  京都府立医科大学, 医学(系)研究科(研究院), 講師 (50363990)

Co-Investigator(Kenkyū-buntansha) 田口 勝敏  京都府立医科大学, 医学(系)研究科(研究院), 講師 (60462701)
Project Period (FY) 2021-04-01 – 2024-03-31
Keywords神経変性疾患 / オートファジー / 基礎研究 / アルツハイマー病 / パーキンソン病
Outline of Final Research Achievements

Aiming to develop new treatments for neurodegenerative diseases, we established a method to measure autophagy activity using NanoBiT technology, created neurodegenerative disease models using cultured cells, and developed a rapid measurement method for disease protein aggregates using these models. Quantification of Beclin1 complex interactions using NanoBiT showed high background activity, making it impossible to quantify specific binding. On the other hand, we created neurodegenerative disease models and established a system that can rapidly analyze the accumulation of protein aggregates. The accumulation of Tau aggregates was observed by knocking out genes related to protein metabolism. Additionally, it was found that oleic acid suppresses the accumulation of aggregates.

Free Research Field

神経内科学、細胞生物学

Academic Significance and Societal Importance of the Research Achievements

本研究は神経変性疾患の治療を最終目標に、その基礎となる研究を行った。各種レポーターを利用した神経変性疾患モデルを作製できたことは、今後新たな治療薬のスクリーニングや既存薬等の評価につながる。また、タンパク質メタボリズム関連遺伝子のノックアウトによりタウの蓄積が認められたことから、これらの遺伝子をターゲットに治療法の開発へ応用したい。また、オレイン酸がタウ凝集体形成の抑制に効果がったことから、さらに詳細に分子メカニズムを明らかにし、認知症などの予防法として応用したい。

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Published: 2025-01-30  

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