誘導可能な内皮細胞表面グリコプロテインは,メラノーマの粘着を媒介する
1Department of Pathology, Brigham and Women's Hospital, Boston, MA 02115.
Science (New York, N.Y.)
|December 8, 1989
まとめ
転移の重要なステップである血管への腫瘍細胞の粘着は,サイトカインの活性化によって強化されます. このプロセスには,INCAM-110やELAM-1のような内皮細胞表面分子が関与し,がんの広がりに潜在的に影響を与える可能性があります.
科学分野:
- 腫瘍学 腫瘍学
- 細胞生物学 細胞生物学
- 免疫学 免疫学とは
背景:
- hematogenous metastasisは,腫瘍細胞が停止し,血流から流出することを意味します.
- 血管内皮への腫瘍細胞の粘着は,このプロセスの重要な初期段階です.
- サイトカインによる内皮細胞の活性化は,細胞の粘着特性を調節することができます.
研究 の 目的:
- 腫瘍細胞が活性化されたヒト内皮に接着するメカニズムを調査する.
- 腫瘍細胞の粘着を媒介する特定の内皮細胞表面分子を特定する.
- これらの分子の転移における潜在的な役割を調査する.
主な方法:
- 培養されたヒト内皮と様々な癌細胞系 (メラノーマ,結腸がん) を利用した.
- 細胞内皮細胞粘着に対するサイトカイン活性化の効果を調べた.
- INCAM-110とELAM-1を含む誘導可能な内皮細胞表面グリコプロテインを特定し,特徴づけました.
主要な成果:
- サイトカインの活性化により,メラノーマと癌の細胞系が,培養されたヒト内皮に付着することが著しく増加した.
- INCAM-110は,メラノーマ細胞粘着を媒介する誘導可能な内皮細胞表面グリコタンパク質として特定されました.
- 中性粒子の内皮受容体であるELAM-1は,結腸がん細胞系統の結合も支援した.
結論:
- 血管内皮の活性化は,INCAM-110とELAM-1の発現を増やすことにより,腫瘍細胞の粘着を促進する可能性があります.
- これらの分子相互作用は,転移の発生率と解剖学的分布に影響を与える可能性があります.
- これらの内皮粘着分子をターゲットにすることで,癌の転移を防ぐための治療戦略を提供することができる.
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