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Analysis of Combinatorial miRNA Treatments to Regulate Cell Cycle and Angiogenesis
Published on: March 30, 2019
補足32への反応遺伝子は,新型の低酸素調節性血管新生阻害剤である
Xiaojin An1, Yi Jin, Hongnian Guo
1Institute of Molecular Medicine, Peking University, Beijing, China.
Circulation
|August 5, 2009
まとめ
補足32への応答遺伝子 (RGC-32) は,血管新生を阻害し,内皮細胞におけるアポトーシスを促進する低酸素誘導性遺伝子である. この発見は,RGC-32が,不全性疾患と腫瘍の潜在的な治療標的であることを示唆しています.
科学分野:
- 分子生物学は分子生物学である.
- 細胞生物学 細胞生物学
- 血管新生研究の研究
背景:
- 補完体32 (RGC-32) に対する応答遺伝子は,補完体活性化によって誘発され,細胞増殖を調節する.
- 内皮細胞における低酸素誘発の血管新生におけるRGC-32の役割が調査されました.
研究 の 目的:
- 低酸素に関連した内皮細胞機能と血管新生におけるRGC-32のメカニズムを解明する.
- RGC-32が抗血管新生因子として作用するかどうかを判断する.
主な方法:
- 低酸素状態で培養された内皮細胞におけるRGC-32発現を調査した.
- 細胞増殖,移動,および血管構造のアッセイを in vitro で利用しました.
- in vivo マトリゲルアッセイとマウスの後肢イシュケミアモデルを実施した.
- アポトーシスと特定の遺伝子発現 (VEGF,FGF2,サイクリンE) に対するRGC-32の効果を調べた.
主要な成果:
- 低酸素は,低酸素誘導因子-1/血管内皮成長因子 (HIF-1/VEGF) 誘導によるRGC-32発現を増加させた.
- RGC-32の過剰発現は,内皮細胞の増殖,移動,および血管の安定性を低下させ,同時に血管新生を vivo で抑制します.
- RGC-32はアポトーシスを促進し,繊維細胞成長因子2 (FGF2) とサイクリンE発現を弱めた.
- RGC-32は,血管新生と血流を阻害し,腫瘍の血管化とサイズを減少させました.
結論:
- RGC-32は,内皮細胞における新しい低酸素誘導性抗血管新生因子である.
- RGC-32は,血管新生におけるVEGFとFGF2経路を区別することによって,ホメオスタティックな役割を果たします.
- RGC-32は,不全性疾患と腫瘍治療のための潜在的な治療標的を表しています.
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