前立腺再生,腫瘍形成,転移におけるヘッジホッグシグナリング
Sunil S Karhadkar1, G Steven Bova, Nadia Abdallah
1Department of Molecular Biology and Genetics and the Howard Hughes Medical Institute, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA.
Nature
|September 14, 2004
まとめ
ヘッジホッグ (Hh) 信号伝達経路は,前立腺がんの再生と転移に不可欠です. 継続的なHh経路の活性化により,細胞は腫瘍に変容し,転移性前立腺がんの新たな診断および治療標的となる.
科学分野:
- 腫瘍学 腫瘍学
- 発達生物学 発達生物学について
- 細胞シグナル伝達 細胞信号伝達
背景:
- 転移性がんは,正常な再生細胞の性質を示します.
- ヘッジホッグ (Hh) 信号経路は,発達パターンの形成に重要な役割を果たします.
研究 の 目的:
- 前立腺がんにおけるHh信号伝達経路の役割を調査する.
- Hh経路の活性が転移性前立腺がんのバイオマーカーであるかどうかを判断する.
- 癌治療のためのHh経路操作を探求するために.
主な方法:
- 前立腺がんモデルにおけるHh経路の活動を評価した.
- 前立腺の原始細胞に対する継続的なHh経路活性化の効果を調べた.
- 局所性前立腺がんと転移性前立腺がんにおけるHh経路活性比較.
- Hh経路の活性化におけるSmoothenedの役割を調査しました.
主要な成果:
- 前立腺上皮再生にはHh経路の活性が必要である.
- 連続したHh経路の活性化により,原始細胞は腫瘍発生細胞に変容します.
- Hh経路の活性が上昇すると,転移性前立腺がんと局所性前立腺がんの区別がつく.
- Hh経路の活動は,内生的なHhリガンドによって誘発され,Smoothened表現に依存する.
- 経路の操作は,がんの侵入性と転移に影響を与えた.
結論:
- Hhシグナル伝達経路は,前立腺がんの発生と転移に関与しています.
- Hh経路の活動は,転移性前立腺がんの潜在的なバイオマーカーとして機能します.
- Hh経路を標的にすることは,転移性前立腺がんの有望な治療戦略を提供します.
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