人間の細胞タイプと組織における活性増強剤のアトラス
Robin Andersson1, Claudia Gebhard2, Irene Miguel-Escalada3
1The Bioinformatics Centre, Department of Biology & Biotech Research and Innovation Centre, University of Copenhagen, Ole Maaloes Vej 5, DK-2200 Copenhagen, Denmark.
Nature
|March 28, 2014
まとめ
研究者らは,ヒト細胞の活性増強剤のアトラスを作成した. このリソースは,増強剤の性質と遺伝子調節における役割を明らかにし,細胞の分化と疾患の研究を支援します.
科学分野:
- ゲノミクスと分子生物学
- 細胞生物学と発達生物学について
背景:
- 強化剤は,多細胞生物における遺伝子発現を制御する重要な規制要素である.
- 増強剤の機能,活動,標的の理解は,細胞の分化とホメオスタシスの解読に不可欠です.
- 強化剤の特性とその体内転写活性に関する以前の知識は限られていた.
研究 の 目的:
- 様々なヒト組織と細胞タイプにわたる活性,in vivo-トランスクリブされた強化剤の包括的なアトラスを生成する.
- これらの増強剤の分子特性と調節活性を特徴づける.
- 規制プログラムの比較分析と,疾患に関連する遺伝的変異の特定のためのリソースを提供すること.
主な方法:
- FANTOM5サンプルパネルを利用し,幅広いヒト組織と細胞タイプを対象とした.
- 強化剤関連RNAのトランスクリプトを分析し,その方向性,スプライシング状態,エクソソームの退化に対する感受性などを分析した.
- 公共のアクセスと分析のためのエンハンサーデータを統合したオンラインアトラスを開発しました.
主要な成果:
- 強化剤は,CpGに乏しいメッセンジャーRNAプロモーターと特徴を共有することを特定しました.
- 増強剤は,増強剤の活動と直接相関する双方向,エクソソームに敏感な,短く,結合されていないRNAを生成することを実証した.
- FANTOM5強化剤アトラスは,規制プログラムを深く比較し,疾患に関連したSNPを特定し,強化剤のタイプを分類することを可能にしました.
結論:
- FANTOM5増強剤アトラスは,細胞型特異的および至るところに存在する増強剤を研究するための貴重なリソースです.
- 増強剤の冗長性は,発現パターンではなく,遺伝子発現の強さに役割を果たします.
- このアトラスは,遺伝子調節,細胞の分化,および疾患の遺伝的基礎に関する研究を促進します.
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