関連する実験動画
Updated: May 12, 2026

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Static Adhesion Assay for the Study of Integrin Activation in T Lymphocytes
Published on: June 13, 2014
CD44の発現は,転移した細胞に新しい粘着性フェノタイプを与える
T St John1, J Meyer, R Idzerda
1Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington 98104.
Cell
|January 12, 1990
まとめ
CD44グリコプロテインは,細胞粘着分子として機能し,マウスの線維芽細胞に自己集積を可能にします. このCD44媒介の結合は特異的で,特定の抗体によって阻害されることもあり,細胞間の相互作用におけるその役割を明らかにしている.
科学分野:
- 細胞生物学 細胞生物学
- 分子生物学は分子生物学である.
- 免疫学 免疫学とは
背景:
- CD44は,細胞表面のグリコプロテインで,細胞粘着に関与しています.
- 粘着分子としての正確な機能には,直接的な実験的検証が必要です.
研究 の 目的:
- 粘着分子としてのCD44の機能的役割を調査する.
- CD44発現が線維芽細胞の細胞自己結合を誘発するかどうかを判断する.
- マウスの線維芽細胞におけるCD44の潜在的な結合体を特定する.
主な方法:
- マウスの線維芽細胞をCD44cDNAで感染させる.
- モノクローナル抗体を用いた細胞表面タンパク質発現の分析.
- サスペンション培養における細胞集積の評価.
- 特殊な抗CD44モノクローナル抗体を用いて粘着を抑制する.
主要な成果:
- 感染した線維芽細胞は,改変されたCD44グリコプロテインを発現した.
- 独立したトランスフェクタントは,自己粘着性フェノタイプを示し,集合体を形成しました.
- CD44媒介による粘着は,特定のモノクローナル抗体によって特異的に阻害されました.
- 移植されていない細胞は,CD44発現するトランスフェクタントに結合し,リガンドの存在を示した.
結論:
- CD44は細胞粘着分子として機能し,線維細胞の自己集約を媒介する.
- CD44の特定の領域は,この付着を媒介するために重要である.
- マウスの線維芽細胞は,CD44粘着分子のリガンドを少なくとも1つ発現する.
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