相关实验视频
Updated: Jul 17, 2026
12:24
Murine Model of CD40-activation of B cells
Published on: March 5, 2010
在 CD44 的转移诱导结合变体的正常免疫反应中的参与
1Deutsches Krebsforschungszentrum Heidelberg, Institut für Radiologie und Pathophysiologie, Heidelberg, Germany.
Science (New York, N.Y.)
|July 31, 1992
概括
变体CD44糖蛋白 (CD44v) 在免疫细胞上的表达模仿瘤细胞转移. 针对CD44v的抗体抑制了淋巴细胞的激活,这表明瘤细胞采用了淋巴细胞的传播行为.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 癌症转移研究 癌症转移研究
背景情况:
- 糖蛋白CD44 (CD44v) 的一种变体在B和T淋巴细胞和巨细胞上短暂表达.
- 这种CD44变异与参与转移形成的变异共享序列.
- 在产后期间,CD44v也表达.
研究的目的:
- 研究CD44v在淋巴细胞激活中的作用.
- 探索CD44v表达和瘤细胞转移之间的关系.
- 为了确定转移的瘤细胞是否模仿淋巴细胞的行为.
主要方法:
- 使用针对CD44变种的抗体.
- 评估了这些抗体对体内B细胞和T细胞激活的影响.
- 分析了CD44.4上特定蛋白质域的功能.
主要成果:
- 对CD44v的抗体抑制了B和T淋巴细胞的体内激活.
- 发现CD44上的蛋白质域对瘤细胞淋巴扩散至关重要,它催化了淋巴细胞激活的关键步骤.
结论:
- 转移性瘤细胞似乎模仿淋巴细胞的行为.
- CD44v糖蛋白在免疫细胞激活和瘤转移中发挥作用.
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