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Wntを産生するニッチは,肺腺癌の増殖の可能性と進行を促す
Tuomas Tammela1, Francisco J Sanchez-Rivera1, Naniye Malli Cetinbas1
1David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02142, USA.
Nature
|May 11, 2017
まとめ
幹細胞のような性質を持つ がん細胞は腫瘍の成長を促します これらの幹細胞とニッチを維持するWnt信号伝達経路をターゲットにすることで,腫瘍の進行を抑制し,肺がんモデルでの生存率を向上させました.
科学分野:
- 腫瘍学
- 分子生物学
- 癌 の 幹 細胞 生物学
背景:
- 癌細胞の異質性は薬剤耐性と腫瘍の進行に関連しています.
- Wntの信号伝達経路は 幹細胞を正常な組織に維持するのに不可欠です
- 肺アデノカルシノーマは,幹のような性質を持つ細胞の異質性を示す.
研究 の 目的:
- 肺腺がんの異質性および進行におけるWnt信号の役割を調査する.
- Wnt経路をターゲットにすることで腫瘍の成長を抑制し,生存率を向上させることができるかどうかを判断する.
主な方法:
- マウスとヒトの肺腺癌組織を分析し,異なる細胞サブ集団を特定する.
- 遺伝子操作で Wntの生成と信号伝達を 妨害する
- Wntの翻訳後の修正を標的とした小分子阻害剤による治療.
主要な成果:
- 肺アデノカルシノーマにはWnt高信号細胞とニッチ形成細胞が含まれています.
- Wnt応答細胞は腫瘍の増殖を示し,幹のような性質を示しています.
- 腫瘍の進行を抑制し,癌細胞の増殖を減少させた.
- 小分子Wnt阻害剤は腫瘍を患ったマウスの生存率を向上させた.
結論:
- Wntシグナリングは,肺腺がんにおける幹細胞とニッチ細胞のフェノタイプを維持するために不可欠です.
- Wnt経路をターゲットにすることは 肺がんに対する有望な治療戦略です
- Wnt媒介の幹を阻害することで,腫瘍の成長を効果的に抑制し,抗がん治療の成果を向上させることができます.
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