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Updated: Jan 25, 2026
05:21
Computerized Adaptive Testing System of Functional Assessment of Stroke
Published on: January 7, 2019
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セレニウム は 転写 適応 プログラム を 駆動 し,フェロプトーシス を 阻害 し,脳卒中 を 治療 する
Ishraq Alim1, Joseph T Caulfield1, Yingxin Chen1
1Sperling Center for Hemorrhagic Stroke Recovery, Burke Neurological Institute at Weill Cornell Medicine, White Plains, NY 10605, USA; Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10065, USA.
Cell
|May 7, 2019
まとめ
セレニウムサプリメントは,神経細胞における抗酸化物質GPX4の発現を高め,フェロプトーシスやその他の細胞死に対する保護を行います. この発見は脳卒中のような 神経疾患の治療に 新たな機会を与えてくれます
科学分野:
- 神経科学
- 細胞生物学
- 生物化学
背景:
- フェロプトーシスは脳卒中を含む様々な状態に 関わるプログラム細胞死経路です.
- フェロプトーシスに対する協調した転写反応は以前は特定されなかった.
- ニューロンは特定のストレス条件下でフェロプトーシスに敏感です.
研究 の 目的:
- 神経細胞のフェロプトーシス刺激に対するホメオスタティックな転写反応を調査する.
- セレニウムとセレノプロテインの細胞死に対する神経細胞保護の役割を調査する.
- 神経学的疾患におけるセレニウム補給の治療の可能性を評価する.
主な方法:
- ニューロンモデルにおけるフェロプトーシスの誘導
- セレノプロテインと転写因子 (TFAP2c,Sp1) に焦点を当てた遺伝子発現の分析
- セレニウム (Se) とセレノペプチドの薬理学的投与
- 血流性脳卒中モデルにおけるニューロン生存と機能回復の評価
主要な成果:
- ニューロンはフェロプトーシスに転写反応を起こし,グルタチオン過酸化酵素4 (GPX4) のようなセレノプロテインを誘発する.
- セレニウムサプリメントは,TFAP2cとSp1の活性化によってGPX4や他のセレノーム遺伝子を強化し,ニューロンを保護します.
- ニューロンを保護し 脳卒中モデルでの行動を改善します
- 薬学的なSeはGPX4依存のフェロプトーシスとGPX4独立の細胞死 (興奮毒性,ERストレス) を抑制する.
- 脳卒中後にセレノペプチドを全身投与すると,細胞死が抑制され,機能が改善されます.
結論:
- 薬学的なセレニウムは神経保護的転写プログラムを活性化し,複数の細胞死経路を阻害する.
- セレニウムサプリメントは 脳卒中や他の神経疾患の治療に 有望な戦略です
- セレノームを標的にすると 神経細胞死と闘う新しい方法が生まれます
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