細胞外マトリックスリモデリング TXNIP不安定化によるグルコース代謝を調節する
William J Sullivan1, Peter J Mullen2, Ernst W Schmid2
1Department of Biological Chemistry, David Geffen School of Medicine, University of California, Los Angeles (UCLA), Los Angeles, CA 90095, USA; Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, UCLA, Los Angeles, CA 90095, USA.
Cell
|September 11, 2018
まとめ
細胞外マトリックス改造は 細胞代謝を調節する ハイアロニダース治療は,TXNIPを分解し,細胞表面でのグルコーストランスポーターGLUT1を強化し,細胞移動を促進することによって,糖分分解を増加させます.
科学分野:
- 細胞生物学
- 生物化学
- 癌 研究
背景:
- 細胞の代謝は 栄養素や成長信号のような 外部要因に 影響を受けます
- 細胞外マトリックス (ECM) の改造は,細胞外代謝制御の重要な調節因子として特定されています.
研究 の 目的:
- 細胞代謝の調節における ECM 再構成の役割を調査する.
- ECM成分と代謝経路を結びつける特定の分子メカニズムを特定する.
主な方法:
- 癌細胞におけるグリコリティック・ドライバの偏見のない分析
- 細胞と異種移植をヒアルロニダースで処理する.
- レセプターチロシンキナーゼシグナル伝達とmRNA分解因子の分析
- グルコーストランスポーターGLUT1の位置と機能の評価
- 細胞移動の測定値の評価
主要な成果:
- ヒアルロナンの媒介による運動性受容体は,がんにおける糖分分解と強く相関しています.
- ハイアロニダースの治療は,糖分分解を著しく増加させる.
- この増加は,ZFP36誘導によって引き起こされ,TXNIPを分解する標的となる.
- 減少したTXNIPは,血のGLUT1を増加させ,グルコースの吸収を促進します.
- ハイアロニダース誘発の糖分解は,細胞移動の加速に不可欠です.
結論:
- ECMの改造,特にヒアルロナンの分解は,糖分解を調節することによって細胞代謝に直接影響を及ぼします.
- ハイアルロナン媒介運動受容体,ZFP36,TXNIP,およびGLUT1を含む特定された経路は,ECMと代謝を結びつける新しいメカニズムを提供します.
- このECMによる代謝調節は,腫瘍形成や胚形成などのダイナミックな生物学的プロセスにおいて極めて重要です.
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