C11orf95-RELA融合は,エペンジモーマにおける腫瘍性NF-κBシグナル伝達を駆動する
Matthew Parker1, Kumarasamypet M Mohankumar2, Chandanamali Punchihewa3
11] St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA [2] Department of Computational Biology and Bioinformatics, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA [3].
Nature
|February 21, 2014
まとめ
研究者らは,ほとんどのサプリテントリアル表膜腫において,C11orf95-RELAという新しい遺伝子融合を発見した. この融合は核因子-κB (NF-κB) 信号伝達を活性化し,腫瘍形成を促し,潜在的な治療標的を提供します.
科学分野:
- 腫瘍学 腫瘍学
- 分子生物学は分子生物学である.
- 遺伝学 遺伝学とは
背景:
- 核因子-κB (NF-κB) 経路は,炎症反応において極めて重要です.
- 構成的なNF-κBシグナル伝達はヒト腫瘍では一般的だが,変異は稀である.
- がんにおける異常なNF-κBの活性を理解することは困難です.
研究 の 目的:
- supratentorial ependymomasを誘発する遺伝的変異を特定する.
- エペンジモマの病原性におけるNF-κBシグナル伝達の役割を調査する.
- 治療目標としてC11orf95-RELA融合タンパク質を研究する.
主な方法:
- supratentorial ependymomaのサンプルを分析した.
- ゲノム技術を用いた遺伝子融合の識別.
- C11orf95-RELA融合タンパク質を含む機能研究.
- 神経幹細胞を用いた vivo マウスモデル.
主要な成果:
- supratentorial ependymomasの3分の2以上は,C11orf95-RELAの腫瘍性合併を宿している.
- これらの融合は,染色体11q13.1.1.の染色体トリプシスから生じる.
- C11orf95-RELA融合タンパク質は核に局所化し,NF-κB標的遺伝子を活性化します.
- 融合タンパク質は神経幹細胞を変容させ,マウスのエペンジモマを形成する.
結論:
- 繰り返し発生するC11orf95-RELA遺伝子の融合は, supratentorial ependymomaにおける重要な要因である.
- C11orf95-RELA融合タンパク質は,このがんの潜在的な治療標的である.
- この発見は,NF-κBシグナル伝達のエペンジモマ発症における役割に光を当てています.
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