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エッジホッグ・シグナリングは,呼吸道上皮原体および小細胞肺がんにおけるエッジホッグシグナリングである
D Neil Watkins1, David M Berman, Scott G Burkholder
1Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA. nwatkins@jhmi.edu
Nature
|March 12, 2003
まとめ
ソニック・ヘッジホッグ (Shh) 信号を含むヘッジホッグ (Hh) 経路は,呼吸道上皮質の修復と発達に不可欠です. 小細胞肺がん (SCLC) での活性化は,この攻撃的な悪性腫瘍の治療標的を示唆しています.
科学分野:
- 発達生物学 発達生物学とは
- がん生物学 がん生物学
- 肺内医学 肺内医学 肺内医学
背景:
- エッジホッグ (Hh) などの胚のシグナル伝達経路は,哺乳類の表皮細胞の発達と癌にとって不可欠です.
- ソニック・ヘッジホッグ (Shh) 信号は,肺の発達に重要であることが知られている.
研究 の 目的:
- 呼吸道上皮質再生とがん発生におけるHh経路の役割を調査する.
- Hhシグナル伝達,神経内分泌の分化,小細胞肺がん (SCLC) の関連性を調査する.
主な方法:
- 急性損傷の修復中に呼吸道上皮質のHh経路の活性化を調べました.
- 通常の呼吸道発達とSCLCにおけるHhシグナル伝達パターンを分析した.
- リンガンド依存のHh経路の活性化がSCLCのフェノタイプを維持する役割について,in vitroとin vivoで調査した.
主要な成果:
- 神経内分泌の分化に先行する,修復中の呼吸道表皮に広範なHh経路の活性化が観察されました.
- 同じようなHhシグナル伝達パターンは,正常な呼吸道発達とSCLCのサブセットで発見されました.
- SCLC腫瘍は,リガンドに依存するHh経路の活性化を示し,悪性現象型を維持した.
結論:
- Hh経路の活性化は,呼吸道上皮質の修復と発達における重要な出来事です.
- いくつかのSCLCは,Hh調節された呼吸道上皮質の分化の再現から生じることがあります.
- Hh信号をターゲットにすることは,SCLCの潜在的な治療戦略です.
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