ナノグは,多能基底状態へのゲートウェイです
Jose Silva1, Jennifer Nichols, Thorold W Theunissen
1Wellcome Trust Centre for Stem Cell Research, University of Cambridge, Cambridge CB2 1QR, UK. jcs64@cscr.cam.ac.uk
Cell
|August 26, 2009
まとめ
ホメオドメインのタンパク質ナノグは,胚性および誘発性多能性の両方にとって重要である. ナイヴ・エピブラストの発達を指揮し,体細胞の再プログラムが多能性に達するために不可欠である.
科学分野:
- 発達生物学 発達生物学とは
- 幹細胞生物学 幹細胞生物学とは
- エピジェネティクス エピジェネティクス
背景:
- 多能性は哺乳類の早期発達の重要な特徴であり,エピブラストの形成を可能にします.
- ソマティック細胞の再プログラムにより,人工的に多能性を再現することができます.
- これらのプロセスにおける特定の要因の役割は,現在調査中です.
研究 の 目的:
- ホメオドメインのタンパク質ナノグが胚性および誘発性多能性における役割を調査する.
- 細胞融合媒介の多能性におけるナノグの機能を決定する.
- ソマティック細胞の再プログラム中にナノグの必要性を明らかにするために.
主な方法:
- ナノグが自然発生のエピブラスト形成における役割の分析.
- 多能ハイブリッドを生成するための細胞融合に関する研究.
- 転写因子誘発型再プログラミング経路の調査.
主要な成果:
- ナノグは,細胞融合による多能性のハイブリッドの産生に不可欠である.
- 誘導再プログラミングの間,ナノグは基本状態の多能性への移行に不可欠になります.
- 胚では,ナノグが先頭葉細胞を標識し,多能性のために必要であり,不確定状態を防ぐ.
結論:
- ナノグは,胚性および誘発性多能性の獲得を媒介する.
- ナノグは,ナイヴ・エピブラストの基底状態をインビヴォとインビトロでオーケストラします.
- ナノグの機能は,体細胞の再プログラム中に再現されます.
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