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新血管化は,線維性肉腫の多段階的発達において,bFGFの輸出への切り替えと関連しています
J Kandel1, E Bossy-Wetzel, F Radvanyi
1Department of Surgery, Children's Hospital, Boston, Massachusetts 02115.
Cell
|September 20, 1991
まとめ
トランスジェニックマウスモデルでは,皮膚繊維サルコマは,血管化が増加した段階を経て進行する. これは,主要な血管新生因子である基礎線維芽細胞成長因子 (bFGF) の細胞外放出に関連しています.
科学分野:
- 腫瘍学 腫瘍学
- 皮膚科 皮膚科について
- 分子生物学は分子生物学である.
背景:
- 皮膚繊維サルコマは,多段階の経路を経て発症する.
- 新血管化は,攻撃的な線維腫および線維肉腫の段階の特徴です.
- 基礎線維芽細胞成長因子 (bFGF) は,細胞の成長と組織修復に関与しています.
研究 の 目的:
- 皮膚繊維サルコマの多段階発症におけるbFGFの役割を調査する.
- bFGFの局所化を腫瘍の進行と血管化と相関させるため.
- 腫瘍発生過程で血管新生現象型への切り替えを理解する.
主な方法:
- 皮膚線維肉腫発達のためのトランスジェニックマウスモデルを使用した.
- 軽度の線維症,攻撃的な線維症,および線維軟骨腫の病変から派生した細胞培養物を分析した.
- 異なる腫瘍段階と正常な皮膚線維芽細胞におけるbFGFの合成と局所化を調べました.
主要な成果:
- 基礎線維芽細胞成長因子 (bFGF) は,線維芽細胞発達のすべての段階および正常な皮膚線維芽細胞で合成されます.
- 細胞関連から細胞外放出へのbFGFの局所化のシフトは,攻撃的な線維腫および線維肉腫の段階で発生します.
- この細胞外bFGFの放出は,新血管化と腫瘍発生性の増加と相関しています.
結論:
- 皮膚繊維サルコマの多段階の腫瘍発生には,血管新生現象型への切り替えが含まれます.
- bFGFの細胞外放出は,新血管化と腫瘍の進行に関連した重要なイベントです.
- bFGFの輸出は,この線維肉腫モデルにおける血管新生スイッチの主要な原動力であるようです.
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