TORは,細胞成長の中央コントローラである
1Department of Biochemistry, Biozentrum, University of Basel, Switzerland.
Cell
|November 1, 2000
まとめ
ラパミシン (TOR) の標的は,細胞成長の中央調節体であり,多様な細胞プロセスを制御します. このキナーゼは,細胞増殖の調節体とは異なり,細胞質量を増やすのに不可欠です.
科学分野:
- 細胞生物学 細胞生物学
- 分子生物学は分子生物学である.
- バイオケミストリー バイオケミストリー
背景:
- 細胞成長 (細胞質量の増加) と細胞増殖 (細胞数の増加) は,多細胞生物における根本的な,しかし異なるプロセスである.
- サイクリン依存キナーゼ (CDK) は,細胞サイクルと増殖の主要な調節体として確立されています.
- 細胞増殖のためのCDKsと同様の細胞増殖のための正確な中央調節器は,難解のままです.
研究 の 目的:
- 細胞の成長を制御する中央調節器を特定する.
- 細胞質量制御におけるラパミシン (TOR) 経路の標的の役割を調査する.
- TORが細胞成長のためのCDKと同等なレギュレータとして機能するかどうかを判断する.
主な方法:
- TOR信号経路のコンポーネントの分析.
- TORのダウンストリームターゲットの検討と,細胞代謝におけるその役割.
- TORの規制範囲とCDKの細胞分裂の範囲を比較した分析.
主要な成果:
- ラパミシン (TOR) キナーゼの標的は,広範で豊富なセルラーリーダウトのセットを調節する.
- これらのTOR制御された読み出しは,タンパク質合成と代謝過程を含む,細胞成長のさまざまな側面にとって重要です.
- TORの広範な規制ネットワークは,細胞質量増加を調整する中心的な役割を果たすことを示唆しています.
結論:
- ラパミシン (TOR) キナーゼの標的は,細胞成長の中央調節体として特定されています.
- TORは,細胞質量を増やすために不可欠な細胞プロセスの重要な調整者として機能します.
- この発見は,TORを基本的細胞行動の調節におけるサイクリン依存キナーゼの重要な対価として確立しています.
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