VIIa因子および組織因子の高いがんにおける外部経路の活性化
A K Kakkar1, N DeRuvo, V Chinswangwatanakul
1Department of Surgery, Royal Postgraduate Medical School, London, UK.
Lancet (London, England)
|October 14, 1995
まとめ
癌患者は,活性化された凝固による高凝固状態を示します. この研究では,組織因子および因子VIIaの上昇が認められ,がん関連の血栓形成の外部経路が関与していることが判明しました.
科学分野:
- 腫瘍学 腫瘍学
- 血液学 ヘマトロジ
- トロンボシス研究研究
背景:
- 血栓塞栓合併症は,悪性疾患と診断された患者で頻繁に発生します.
- 癌における高凝固性のメカニズムを理解することは,患者の管理に極めて重要です.
研究 の 目的:
- 健康な個人と比較して,がん患者における凝固システムの活性化を調査する.
- 固体腫瘍に関連する高凝固状態に関与する特定の凝固因子と経路を特定する.
主な方法:
- 組織因子,因子VIIa,因子XIIa,トロンビン-アンチトロンビン複合体,プロトロンビン断片1+2の血濃度が測定されました.
- 固体腫瘍を患った106人の患者と72人の健康なボランティアのコホートがこの研究に参加しました.
主要な成果:
- がん患者は,組織因子 (67%増加) と因子VIIa (46%増加) のプラズマ濃度が大幅に上昇し,外部経路の活性化を示した.
- トロンビン-アンチトロンビン複合体とプロトロンビン断片1 + 2の上昇は,がん患者で過剰なトロンビン生成が確認されました.
- 内在経路の活性化 (因子XIIaの上昇) は,主に進行した疾患または化学療法を受けている患者で観察されました.
結論:
- 組織因子経路は,がん患者で観察される高凝固状態において重要な役割を果たします.
- これらの発見は,悪性腫瘍における血栓形成リスクの主要な要因として,外来経路を強調しています.
- 癌における血栓塞栓性イベントを緩和するために,組織因子経路に焦点を当てた標的介入を探索するさらなる研究が可能である.
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