トランスクリプションの異質性および骨髄性祖先における系統のコミットメント
Franziska Paul1, Ya'ara Arkin2, Amir Giladi1
1Department of Immunology, Weizmann Institute of Science, Rehovot 76100, Israel.
Cell
|December 3, 2015
まとめ
研究者は単細胞転写分別を用いて骨髄の骨髄原細胞をマッピングした. 彼らは特定の細胞の運命を向けて 異なった原始子群を発見し 血液形成の調節に関する新しい洞察を明らかにしました
科学分野:
- 血液学
- 幹細胞生物学
- ゲノミクス
背景:
- 骨髄の血液形成性幹細胞は 多様な血液細胞を生成する.
- 血液形成原体を定義する現在の方法は,体内の微分化や遺伝子調節に直接的なリンクがない.
研究 の 目的:
- 骨髄における骨髄原始子集団を 総合的にマッピングする.
- 単細胞解像度での血液形成分子の転写制御を理解する.
主な方法:
- 単細胞転写による骨髄細胞の分類
- 転写因子,ヒストン変異,遺伝子調節ネットワークの分析
- 生体内移植検査と ノックアウト実験
主要な成果:
- 異なった転写プロファイルを持つ多発性骨髄原始子群を特定した.
- 予期せぬトランスクリプション・プライミングが 7つの特殊な分化運命に 観測された.
- トランスクリプション差異と特定のトランスクリプション因子の組み合わせとの相関性が見つかりました.
- ヒストンマップとノックアウトアッセイは,早期の転写プライミングをサポートします.
- 生体内での実験では 混乱した原始体の可塑性を示唆しています
結論:
- 単細胞解像度での血液形成を研究するための基準モデルを確立した.
- 骨髄原菌の分化が転写因子によって強く制御されていることが示された.
- 細胞運命を決定するトランスクリプションの役割を強調した.
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