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Updated: Jan 26, 2026

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単細胞と初期胚における多能性因子のプロファイリング

Sarah J Hainer¹, Ana Bošković², Kurtis N McCannell³

¹Department of Molecular, Cell, and Cancer Biology, University of Massachusetts Medical School, Worcester, MA 01605, USA; Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA.

|April 9, 2019

まとめ

超低入力CUT&RUN (uliCUT&RUN) を開発し単細胞の転写因子 (TF) 結合部位をマッピングしましたこの方法は,発達と疾患における細胞運命を決定する決定を理解するために不可欠なTF結合ダイナミクスと依存性を明らかにします.

科学分野:

発達生物学
ゲノミクス
分子生物学

背景:

細胞の運命の決定は,小さな細胞集団で作用する転写因子 (TF) に依存する.
単細胞レベルでTF結合部位を in vivoで特定することは,現在の技術では困難です.

研究の目的:

単細胞を含む低細胞数の転写因子をプロファイリングするためにCUT&RUNアッセイを適応させる.
稀な細胞集団におけるTF結合部位の占有率と依存度を調査する.

主な方法:

超低インプット (uliCUT&RUN) のための核酸 (CUT&RUN) 測定法を使用して,標的の下での分裂と放出の適応.
uliCUT&RUNの適用は,単細胞とインプラント前の個々の胚の転写因子をプロファイルする.

主要な成果:

単細胞実験では,ほとんどの細胞でTF結合部位が占められているのはほんのわずかな部分に過ぎない.
多能性TF NANOGの染色体結合は,個々のブラストシストのSWI/ SNF染色体改造複合体に非常に依存しています.

結論:

超低入力CUT&RUN (uliCUT&RUN) は,希少な細胞集団における全ゲノムTF結合プロファイリングを可能にします.
この技術は,特に胚の状況において,発達と疾患におけるTF機能を研究するのに価値があります.

キーワード:

Brg1 について CUT&RUN (カット&ラン)CHIP-seq についてナノグクロマチン胚 esBAF についてプラリポテンシー幹細胞転写因子

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