2021 Fiscal Year Final Research Report
Development of a novel method for analyzing the distribution of endogenous proteins in mammalian brain tissues
Project/Area Number |
20K21461
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Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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Allocation Type | Multi-year Fund |
Review Section |
Medium-sized Section 46:Neuroscience and related fields
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Research Institution | Niigata University |
Principal Investigator |
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Project Period (FY) |
2020-07-30 – 2022-03-31
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Keywords | 分子標識 / ゲノム編集 / 化学タグ / 免疫組織化学 / 超解像顕微鏡 / 組織透明化 / 単一ニューロン / シナプス |
Outline of Final Research Achievements |
The localization of endogenous proteins is essential for understanding cellular functions. Although immunohistochemistry is a prevalent method to examine the anatomical information of proteins of interest (POIs), it sometimes fails the detection of POIs at dense structures due to an insufficient penetration of large antibodies against POIs. To overcome this issue, we developed a novel method to quantitatively detect endogenous POIs at single cell levels via small fluorescent ligand-mediated labeling of chemical tags which were fused to POIs by in vivo genome editing techniques.
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Free Research Field |
神経解剖学
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Academic Significance and Societal Importance of the Research Achievements |
本研究で開発された技術は、これまで検出が困難であった内在タンパク質を他のタンパク質と同じ条件で検出することを十分可能にするため、シナプス構成タンパク質の新たな理解に寄与できる。また、従来のシナプスの機能の理解は、多数のシナプスの平均化されたデータに基づいてきたが、本技術を用いて実際の学習記憶に関わるシナプスを1シナプスレベルで解析できれば、学習記憶に伴ってどのシナプスで何が起きているのかをのシナプス構成タンパク質の視点から理解可能になると考えられる。
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