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In Vivo Model for Testing Effect of Hypoxia on Tumor Metastasis
Published on: December 9, 2016
リシル酸化酵素は,低酸素誘発の転移に不可欠です
Janine T Erler1, Kevin L Bennewith, Monica Nicolau
1Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California 94305, USA.
Nature
|April 28, 2006
まとめ
リジル酸化酵素 (LOX) は,細胞の侵入とマトリックス粘着を強化することによって,低毒性条件下で癌の転移を促進します. LOXを阻害すると,効果的に転移を防止し,がん治療の治療目標としての潜在力を強調します.
科学分野:
- 腫瘍学 腫瘍学
- 分子生物学は分子生物学である.
- がん研究 がん研究
背景:
- 癌による死亡の主な原因である転移は,腫瘍の微小環境の影響を受けます.
- 低酸素症 (低酸素症) は,転移の増加と患者のアウトカム悪化に関連していますが,そのメカニズムは完全に理解されていません.
- リジル酸化酵素 (LOX) 発現は,ヒポキシ性腫瘍では上昇し,腫瘍発生に複雑な役割を果たします.
研究 の 目的:
- 低酸素による転移におけるリシル酸化酵素 (LOX) の役割を調査する.
- 癌の拡散を防ぐために,LOXが有効な治療目標であるかどうかを判断する.
主な方法:
- 人間の乳房および頭頸部腫瘍におけるLOX発現の分析.
- 低酸素誘導因子 (HIF) によってLOXの調節を調査する.
- 乳がんのマウスモデルにおけるLOXの抑制により,転移の可能性を評価する.
主要な成果:
- LOX発現はHIFによって調節され,ヒト腫瘍における低酸素と関連しています.
- 高LOX発現は,患者の生存率の低下と,遠隔転移の増加と相関する.
- 臨床前モデルのLOXエラジケート転移の抑制.
- 分泌されるLOXは,焦点粘着キナーゼと細胞マトリックス粘着を経由してがん細胞の侵入を誘発する.
結論:
- LOXは,低酸素誘発の転移に不可欠です.
- LOXは,転移性成長に有利な微環境の形成に重要な役割を果たします.
- LOXをターゲットにすることは,癌の転移を予防および治療するための有望な治療戦略です.
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