細胞間相互作用は,NF2-YAPシグナル伝達を通じてがん細胞のフェロプトーシスを決定する
Jiao Wu1,2, Alexander M Minikes2,3, Minghui Gao2,4
1National Translational Science Center for Molecular Medicine, Department of Cell Biology, School of Basic Medicine, Air Force Medical University, Xi'an, China.
Nature
|July 26, 2019
まとめ
細胞間相互作用がフェロプトーシスを制御し 癌に伴う細胞死プロセスです E- カデリンとNF2- ヒッポ経路は上皮細胞におけるフェロプトーシスを抑制し,YAPの活性化はそれを促進し,新たな治療標的を提供する.
科学分野:
- 細胞生物学
- 癌 研究
- 細胞 死 の 分子 機構
背景:
- フェロプトーシスは 鉄に依存する細胞死経路で 癌や臓器損傷などの病気に 関与しています
- グルタチオン過酸化剤4 (GPX4) は,脂質過酸化から細胞を保護するフェロプトーシスの重要な調節剤です.
- メゼンキマ特性を有する癌細胞は 逆説的にフェロプトーシスに敏感です
研究 の 目的:
- 細胞間相互作用による非細胞自律的フェロプトーシスの調節を調査する.
- 細胞粘着とフェロプトーシス感受性を結びつける分子メカニズムを解明する.
- フェロプトーシスの制御における NF2-Hippo-YAP 信号軸の役割を調査する.
主な方法:
- 皮質細胞および非皮質細胞におけるフェロプトーシス調節を調査した.
- 遺伝子操作と 信号伝達経路の 薬学的阻害を利用した
- 悪性メソテリオマの オーソトピックマウスモデルを使用した.
主要な成果:
- E- カデリン媒介の細胞間相互作用は,NF2- Hippo経路を通じて上皮細胞におけるフェロプトーシスを抑制する.
- NF2- Hippo経路の阻害はYAPを活性化し,ACSL4とTFRCを上調することでフェロプトーシスを促進します.
- NF2の遺伝的不活性化により,メソテリオマウスモデルにおけるフェロプトーシスの感受性が増加した.
結論:
- 細胞間相互作用とNF2- YAP信号軸はフェロプトーシスの重要な調節因子である.
- このメカニズムは,メゼンキマ癌細胞におけるフェロプトーシスの過敏性を説明する.
- NF2- YAPシグナルステータスは,フェロプトーシスを誘発する治療に対する患者の反応を予測することができる.
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