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MISSION esiRNA for RNAi Screening in Mammalian Cells
Published on: May 13, 2010
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ヒト細胞のエンドロビヌクレアース製のsiRNAスクリーンは,細胞分裂に不可欠な遺伝子を特定します
Ralf Kittler1, Gabriele Putz, Laurence Pelletier
1Max Planck Institute for Molecular Cell Biology and Genetics, Pfotenhauerstrasse 108, D-01307 Dresden, Germany.
Nature
|December 24, 2004
まとめ
研究者らは,遺伝子サイレンシングのために,エンドロビヌクレアース製の短い干渉RNA (esiRNAs) のゲノムスケールライブラリを開発した. このツールは,ヒト細胞の細胞分裂に不可欠な37の遺伝子の識別を可能にし,新しい生物学的な洞察を明らかにしました.
科学分野:
- 分子生物学は分子生物学である.
- 遺伝学 遺伝学とは
- 細胞生物学 細胞生物学
背景:
- RNA干渉 (RNAi) は,保存された遺伝子サイレンスメカニズムである.
- 長い二重鎖RNA (dsRNA) は,脊椎動物における望ましくない反応を誘発する.
- 短い干渉RNA (siRNAs) は,哺乳類における特定の遺伝子サイレンシングに好ましい.
研究 の 目的:
- ヒトの遺伝子用,エンドロビヌクレアース製の短い干渉RNA (esiRNA) の包括的なライブラリを作成する.
- このesiRNAライブラリを使用して,細胞分裂に関与する遺伝子の全ゲノムスクリーニングを行う.
- 哺乳類の細胞分裂を調節する新しい遺伝子と経路を特定する.
主な方法:
- 配列検証されたcDNAコレクション (15,497人の遺伝子) からゲノムスケールのesiRNAライブラリを作成.
- 細胞分裂に不可欠な遺伝子を特定するために,HeLa細胞内の5305のeSiRNAをスクリーニング.
- 高通量細胞活性および高含量ビデオ顕微鏡検査を使用しています.
主要な成果:
- 細胞分裂に欠かせない37の遺伝子を特定した.
- 結合因子を発見し,その解消によりミトシス・スパインドルの欠陥が生じる.
- 細胞の増殖とミトーシスを加速させる核輸出ターミネーターを発見しました.
結論:
- 哺乳類の細胞における大規模なRNAiスクリーニングのための強力で汎用的なツールとしてesiRNAを確立しました.
- これまで未知の遺伝子や細胞分裂を調節するメカニズムを発見した.
- 細胞増殖とミトーシスの遺伝子制御に関する新しい洞察を提供した.
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