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The role of Vimentin in the changes in cell shape and motility that accompany epithelial to mesenchymal transitions.

机译:波形蛋白在伴随上皮到间充质转变的细胞形状和运动性变化中的作用。

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摘要

Vimentin is a cannonical marker of normal embryogenic epithelial to mesenchymal transitions (EMT) as well as those that accompany metastasis and the progression of diseases such as fibrosis. Yet the functional implications of the expression of this Type III intermediate filament (IF) protein are poorly understood. My results show that vimentin IF (VIF) are sufficient to induce epithelial cells to adopt mesenchymal-like cell shapes. Coincident with changes in shape, epithelial cells expressing VIF lose desmosomal contacts and increase the rate of exchange of the focal adhesion component paxillin. Conversely, the loss of VIF in mesenchymal cells results in their transition to more epithelioid shapes. These findings support the role of VIF in the regulation of cell adhesion.
机译:波形蛋白是正常胚胎发生的上皮到间质转化以及伴随转移和疾病发展(例如纤维化)的那些的典型标志。然而,对该III型中间丝(IF)蛋白的表达的功能含义知之甚少。我的结果表明波形蛋白IF(VIF)足以诱导上皮细胞采用间充质样细胞形状。与形状变化同时发生的是,表达VIF的上皮细胞失去了桥粒接触并增加了粘着斑成分Paxillin的交换速率。相反,间充质细胞中VIF的丧失导致其转变为更多的上皮样形状。这些发现支持了VIF在细胞粘附调节中的作用。

著录项

  • 作者单位

    Northwestern University.;

  • 授予单位 Northwestern University.;
  • 学科 Biology Cell.
  • 学位 Ph.D.
  • 年度 2009
  • 页码 127 p.
  • 总页数 127
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-17 11:38:26

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