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2021 Fiscal Year Final Research Report

Proteins interacting with Nav1.1 may be potential therapeutic targets for epilepsy

Research Project

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Project/Area Number 19K08284
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52050:Embryonic medicine and pediatrics-related
Research InstitutionNippon Medical School

Principal Investigator

Ogiwara Ikuo  日本医科大学, 医学部, 准教授 (30373286)

Project Period (FY) 2019-04-01 – 2022-03-31
Keywordsてんかん / 電位依存性ナトリウムチャネル / タンパク質複合体
Outline of Final Research Achievements

Dravet syndrome is an infantile epileptic encephalopathy characterized with intractable epileptic seizures and developmental delay. Dravet syndrome is associated with loss of function mutations of the gene encoding voltage-gated sodium channel alpha 1 subunit. This study aimed to characterize protein complexes composed of sodium channel alpha 1. We found that sodium channel alpha 1 interacted with fibroblast growth factor homologues factor and synaptic protein. Although fibroblast growth factor homologues factor did not significantly altered properties of sodium channel alpha 1, these protein-protein interactions may regulate functions of sodium channel alpha 1.

Free Research Field

神経科学

Academic Significance and Societal Importance of the Research Achievements

ドラベ症候群は重篤な乳児期発症のてんかんです。新しい治療薬の開発が求められていて、その一つとして、電位依存性ナトリウムチャネルα1を標的する分子戦略を挙げることができます。本研究は、α1と相互作用するタンパク質として、線維芽細胞増殖因子相同因子とシナプス関連タンパク質を見出しました。そして、本研究はα1内にタンパク質間相互作用領域を同定しました。この領域はα1機能を調節できるドラベ症候群治療開発の標的となりうると期待されます。

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Published: 2023-01-30  

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