細胞外乳酸は,低毒性条件下でH3K9の乳化とSnoN発現を調節することによって神経生成を改善する
Wenhong Xu1, Anqi Zhao1, Rui Han2
1The Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun, 130021, China.
Stem cell research & therapy
|August 27, 2025
まとめ
L- 乳酸はヒストン乳化 (H3K9la) とSnoNタンパク質を介して神経生成を促進します. この経路は 神経学的回復のための潜在的な治療標的を強調します
科学分野:
- 神経科学
- 生物化学
- 幹細胞生物学
背景:
- 乳酸は成人の神経生成を促し,タンパク質の乳化を媒介する.
- ニューロゲネシスにおけるヒストンの乳酸化の役割は十分に理解されていません.
- 神経幹細胞 (NSC) とヒストンの乳化に対する乳酸の影響を調査することは極めて重要です.
研究 の 目的:
- 乳酸とNSCの運命の関係を解明するために
- ニューロゲネシスにおけるヒストンの乳酸化の機能を調査する.
主な方法:
- NSCは低毒性状態で乳酸で治療した.
- ウェスタン・ブロット,免疫光,RNA配列,ChIP配列を用いた.
- ヒストンの乳化変化と遺伝子発現の変化を分析した.
主要な成果:
- L- 乳酸はニューロゲネシスを促進し,ヒストンH3K9の乳化 (H3K9la) を誘導した.
- L- 乳酸またはH3K9を阻害すると,神経細胞の発達とNSCの分化に障害が生じます.
- H3K9laはSnoNプロモーターに濃縮され,SnoN抑制はダブルコルチン (DCX) +ニューロン生成を減少させた.
結論:
- 低酸素状態では,H3K9la/SnoN経路経由で神経生成を促進する.
- SnoNは,乳酸誘発ニューロゲネシスの主要な媒介体として特定されています.
- H3K9la/SnoN軸は,神経学的回復,特に脳性缺血において,潜在的な治療目標である.
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