哺乳類の細胞におけるチャペロンによるα-シヌクレインの調節
Björn M Burmann1,2,3, Juan A Gerez4, Irena Matečko-Burmann5,6,7
1Biozentrum, University of Basel, Basel, Switzerland. bjorn.marcus.burmann@gu.se.
Nature
|December 6, 2019
まとめ
パーキンソン病におけるアルファ-シナヌクレインの集積を防止する. この相互作用を阻害すると 毒性の蓄積とミトコンドリアの損傷が起こり 新しい治療目標が生まれます
科学分野:
- 神経科学
- 分子生物学
- 生物化学
背景:
- パーキンソン病は,アルファ-シヌクレインが集積して形成されたルイの体を含む.
- アルファシヌクレインの集積は,翻訳後の改変と分子チャペロンによって影響を受けますが,そのメカニズムは不明です.
研究 の 目的:
- アルファ・シヌクレインとの交互作用を原子レベルで体系的に特徴づける.
- これらの相互作用が細胞におけるアルファ-シナヌクレインの集積を調節する役割を明らかにする.
主な方法:
- インビトロと細胞内NMRスペクトロスコーピー
- チャペロン-アルファ-シヌクレインの相互作用の体系的特徴.
- チャペロン相互作用の抑制とアルファシヌクレインの局所化と集積の分析
主要な成果:
- アルファシヌクレインに共通するモチーフを認識し,その結合を阻害する.
- この相互作用は,生きている哺乳類の細胞に保存されています.
- チャペロン相互作用の阻害はアルファシヌクレインの集積とミトコンドリアの再局所化につながる.
- Tyr39での酸化は,アベルソンキナーゼの役割を説明する,チャペロン相互作用を損なう.
結論:
- 分子チャペロンによるアルファシヌクレインの集積のためのマスター規制メカニズムが確立されています.
- パーキンソン病の新たな治療戦略に注目しています
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