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Use of Alu Element Containing Minigenes to Analyze Circular RNAs
Published on: March 10, 2020
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RNA結合タンパク質の振動は,circRNAsの形成を調節する
Simon J Conn1, Katherine A Pillman2, John Toubia2
1Centre for Cancer Biology, SA Pathology and University of South Australia, Adelaide, SA 5000, Australia.
Cell
|March 14, 2015
まとめ
円形のRNA (circRNAs) は,EMT.のような細胞変化の間に調節されます. Quaking (QKI) タンパク質は,circRNAの生成を制御し,意図的な合成と細胞プロセスにおける特定の役割を示しています.
科学分野:
- 分子生物学は分子生物学である.
- RNA 生物学 RNA 生物学
- 遺伝学 遺伝学とは
背景:
- 円形RNA (circRNAs) は,動物における非コーディングRNAの多くを占めているが,その機能的関連性については依然として議論されている.
- circRNAsが単に副産物をスプライスするだけなのか,細胞的な役割を持つ活性的に調節された分子なのかは不明である.
研究 の 目的:
- ヒト上皮質-メゼンキマ移行 (EMT) 中のサークRNAsの調節を調査する.
- サークRNA生成における代替スプライシング因子クアキング (QKI) の役割を決定する.
主な方法:
- EMT中のcircRNA発現の分析.
- サイクリング (QKI) タンパク質レベルがcircRNAの豊富さに与える影響を調査する.
- circRNA形成におけるイントロニックQKI結合モチーフの役割を評価する.
主要な成果:
- EMTでは何百ものcircRNAが動的に調節されます.
- 豊富なcircRNAの3分の1以上は,Quaking (QKI) によって調節され,それ自体がEMT中に調節されます.
- QKI結合モチーフは,調節されたcircRNA生成に不可欠であり,それらの添加は,de novo circRNA形成を誘導する可能性があります.
結論:
- CircRNAは意図的に合成され,その生成は細胞型特異なメカニズムによって調節されます.
- これらの発見は,circRNAsは,特にEMTの文脈で,特定の生物学的な役割を果たすことを示唆しています.
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