タンパク質合成には細胞表面との接触が必要で,核の出来事は,固定系に依存した線維芽細胞の細胞形に反応する
Cell
|September 1, 1980
まとめ
細胞が表面に付着し,広範囲に広がるのではなく,タンパク質合成を迅速に回復します. しかし,細胞の形状は,DNAとRNAの合成のような核イベントに大きく影響し,異なる規制信号を示します.
科学分野:
- 細胞生物学 細胞生物学
- バイオケミストリー バイオケミストリー
- 分子生物学は分子生物学である.
背景:
- 繊維芽細胞は,成長のために結合し,広がる必要があります.
- 細胞サスペンションは主要なRNAとタンパク質の合成を阻害する.
- 合成の回復は,再結合時に起こります.
研究 の 目的:
- 細胞再結合と細胞拡散の代謝効果を区別するために.
- マクロ分子代謝の調節における細胞の形状の役割を調査する.
- 細胞表面の接触と形状からの明確な規制信号を理解する.
主な方法:
- 代謝を抑制するために,線維芽細胞の長期サスペンション培養.
- 細胞の形を制御するために,細胞を拡散阻害剤で置き換える.
- 細胞直径を変化させるため,ポリ・2-ヒドロキシエチルメタクリlate) コーティングされた皿を使用します.
- タンパク質,DNA,rRNA,mRNAの合成を監視する.
主要な成果:
- タンパク質合成の回復は,広範な拡散とは無関係に,細胞の再結合に迅速に続く.
- 限られた細胞表面接触は,タンパク質合成の回復を開始するのに十分です.
- 表面粘着性によって制御される細胞の形状は,核イベント (DNA,rRNA,mRNA合成) に深く影響する.
結論:
- 細胞表面の接触と細胞の形状は,繊維芽細胞の異なる調節反応を誘発する.
- 初期再結合はタンパク質合成の回復を信号し,細胞の形状は核活性を調節する.
- この研究では,代謝調節における最初の接触と,その後の細胞形態の役割が分離されています.
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