何千もの単細胞におけるクロマチンのアクセシビリティと遺伝子発現の共同プロファイリング
Junyue Cao1,2, Darren A Cusanovich1, Vijay Ramani1
1Department of Genome Sciences, University of Washington, Seattle, WA, USA.
まとめ
この研究は,単細胞におけるクロマチンのアクセシビリティとmRNAを同時にプロファイルするための新しい方法であるsci-CARを導入します. これは遺伝子調節と細胞タイプのダイナミクスのより深い理解を可能にします.
科学分野:
- 分子生物学
- ゲノミクス
- 細胞生物学
背景:
- 現在の単細胞測定は,通常,一つの生物学的側面のみを測定します.
- 単細胞解像度で複数の細胞特性を共同でプロファイルできる方法が必要です.
研究 の 目的:
- 単細胞におけるクロマチンのアクセシビリティとmRNA (CAR) の共同プロファイリングのための組み合わせインデックスベースのコアセイであるsci-CARの開発と検証.
- 細胞動力学と遺伝子調節の分析における sci-CARの有用性を実証する.
主な方法:
- sci-CAR:コンビネトリアル・インデックスベースのコアセイ.
- デキサメタゾン治療と成人のマウスの腎臓細胞のタイムシリーズを含む数千の単細胞に適用します.
- 関節クロマチンのアクセシビリティとmRNAデータの分析
主要な成果:
- 4825個の単細胞と 11,296個の単細胞に sci-CARを成功裏に適用しました.
- クロマチンのアクセシビリティと遺伝子発現の間の擬似時間動態の比較を可能にしました.
- RNAで定義された細胞タイプのためのクロマチンのアクセシビリティプロフィールの再構築を容易にした.
- コヴァリアンス解析を用いて,標的遺伝子をシス調節部位とリンクした.
結論:
- sci-CARは,共同マルチオーム単細胞分析のための強力なツールを提供します.
- この方法は遺伝子調節と 細胞の異質性を研究する能力を高めます
- 単細胞解像度で遺伝子発現のダイナミクスを制御する要素をリンクすることができます.
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