ヒトの癌の転写的景観で表現された擬似遺伝子は,ヒトの癌の転写的景観で表現された擬似遺伝子は,ヒトの癌の転写的景観で表現された擬似遺伝子は,ヒトの癌の転写的景観で表現された擬態遺伝子は,ヒトの癌の転写的景観で表現された擬態遺伝子は,ヒト
Shanker Kalyana-Sundaram1, Chandan Kumar-Sinha, Sunita Shankar
1Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI 48109, USA.
Cell
|June 26, 2012
まとめ
この研究は,組織と癌の間で広範囲にわたる擬似遺伝子の転写を明らかにしています. これらの転写された偽遺伝子は,遺伝子調節,細胞分化,癌の進行に著しく影響し,転写体への新しい洞察を提供します.
科学分野:
- ゲノミクスと分子生物学
- がん研究 がん研究
- 遺伝子規制 遺伝子規制
背景:
- 偽遺伝子トランスクリプトは,小さな干渉RNA (siRNA) またはマイクロRNA (miRNA) 結合部位を通じて遺伝子発現を調節することができます.
- 擬似遺伝子の発現を分析することは,親のコーディング遺伝子との高い配列相似性のために困難であり,以前の研究を逸話的な観察に制限しています.
研究 の 目的:
- 様々なヒト組織と癌のタイプにおける擬似遺伝子の転写を体系的に分析する.
- 発現した偽遺伝子の有病率,特異性 (至る所に存在する,系統,がん,または疾患サブタイプ特異性),および潜在的な機能を調査する.
- 高通量シドゲン発現分析のための包括的なトランスクリプトームリソースを提供すること.
主な方法:
- 13種類のがんおよび正常な組織型から293個のサンプルを含む大規模なRNA-Sequencing (RNA-Seq) データセットを使用しました.
- 擬似遺伝子転写を特定し特徴づけるために,体系的な分析を行いました.
- 調査された疾患サブタイプ特異性と,選択された発現した偽遺伝子の機能的役割.
主要な成果:
- 驚くほど流行し,全ゲノムにわたる擬似遺伝子の発現が観察されました.
- 汎用性,系統特異性,および癌特異性パターンに分類された擬似遺伝子の発現.
- いくつかの発現した擬似遺伝子の疾患サブタイプ特異性と潜在的機能を特定した.
結論:
- トランスクリプトされた偽遺伝子は,細胞トランスクリプトームの重要かつ広範な構成要素である.
- 発現した偽遺伝子は,特にceRNAネットワーク内で,細胞の分化と癌の進行において重要な役割を果たす準備ができています.
- この研究は,将来の高通量シドゲン発現研究のための貴重なリソースを確立します.
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