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Updated: Sep 16, 2025

Induction and Analysis of Epithelial to Mesenchymal Transition
Published on: August 27, 2013
携带维门的细胞外囊泡驱动了上皮质-介质酶过渡
Sepideh Parvanian1, Leila S Coelho-Rato2, Michael Santos Silva2
1Center for Systems Biology, Massachusetts General Hospital Research Institute and Harvard Medical School, Boston, MA 02114, USA; Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520, Turku, Finland; Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, 20520 Turku, Finland.
来自纤维细胞的携带维门的细胞外囊泡驱动了上皮细胞中的上皮细胞-介质细胞过渡 (EMT). 维门阳性囊泡促进EMT和伤口愈合,而维门缺乏的囊泡则没有.
科学领域:
- 细胞生物学 细胞生物学
- 生物化学 生物化学
- 癌症研究 癌症研究
背景情况:
- 表皮-介质细胞过渡 (EMT) 在发育,伤口愈合和癌症中至关重要.
- 众所周知,维门是一种中间丝蛋白,可以在细胞内调节EMT.
- 细胞外维门的作用,特别是来自细胞外囊泡 (EVs) 的作用,是一个新兴的研究领域.
研究的目的:
- 为了调查细胞外维门,特别是来自纤维细胞衍生的EVs,是否调节EMT.
- 确定EV中维门丁在促进EMT和相关的细胞过程,如伤口愈合中的作用.
主要方法:
- 利用了上皮细胞和纤维细胞的共同培养模型.
- 用来自野生类型和维门敲击纤维细胞的EVs处理的上皮细胞.
- 进行了野生类型和维丁缺乏的EV的蛋白质基因分析.
主要成果:
- 纤维细胞衍生的EVs在上皮细胞中诱导了EMT表型,其特征是上皮和介质细胞标记物发生变化.
- 来自维门缺乏纤维细胞的EVs表现出降低的EMT诱导能力,并且未能促进细胞覆盖的关闭.
- 蛋白质组分析显示,野生类型的EV富含EMT相关蛋白质,包括纤维素和N-cadherin,这些蛋白质在维蒙丁缺乏的EV中减少.
结论:
- 通过纤维细胞衍生的EVs传递的细胞外维是EMT的关键驱动因素.
- 维门阳性EV传输特定的蛋白质载荷,促进EMT和伤口愈合.
- 了解维门阳性EV蛋白质组,可以了解EMT机制以及EMT相关病理的潜在治疗点.
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