ヒッポキナーゼLATS1と2は,ERαとのクロストークを通じてヒト乳房細胞の運命を制御する
Adrian Britschgi1, Stephan Duss1, Sungeun Kim2
1Friedrich Miescher Institute for Biomedical Research, 4058 Basel, Switzerland.
Nature
|January 10, 2017
まとめ
大量の腫瘍抑制キナーゼ (LATS) 1と2は,エストロゲン受容体α (ERα) の安定性を制御することによって,乳房細胞の運命を調節する. LATSを消去すると,乳がんのリスクが増加する可能性があります.
科学分野:
- 細胞生物学
- 癌の研究
- 分子機構
背景:
- 細胞運命を調節できないことが,ヒトの病気,特に乳がんに起因している.
- 乳腺の表皮階層の分子調節は十分に理解されていません.
- 乳がんはこの上皮から発生し,その制御メカニズムを定義する必要性を強調しています.
研究 の 目的:
- 乳房細胞の運命を制御する 新種の腫瘍抑制剤を特定するためです
- 乳頭上皮質の階層を制御する分子メカニズムを解明する.
- 乳腺細胞の運命を決定するヒッポの経路の役割を調査する
主な方法:
- 高濃度コンフォカル画像ベースの短いヘアピンRNAスクリーニング
- ヒッポ経路とエストロゲン受容体α (ERα) 信号の相互作用を調査する.
- LATS1/ 2の消去がERαの安定性や乳がん前細胞集団に与える影響を評価する.
主要な成果:
- 大型腫瘍抑制キナーゼ (LATS) 1と2の消去は,光細胞のフェノタイプを促進する.
- LATS1/ 2欠乏症は,潜在的に発症する乳がん細胞であるバイポテンツとルミナルプロジェニータの数を増加させる.
- LATS1/ 2は,ユビキチン化とプロテアソーム分解を通してERαの安定性を調節し,YAP/ TAZの活性に影響を与えます.
結論:
- LATS1/2はヒトの乳房細胞運命を維持する上で重要な役割を果たします.
- ヒッポとERαのシグナル伝達経路の間の直接的な相互作用が特定されました.
- LATS1/ 2は乳房細胞の運命を調節する非正規の,YAP/ TAZ独立の機能を示している.
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