康涅素43介导的集体细胞迁移是独立于戈尔吉定向的
Madhav Sharma1, Suvam Mukherjee1, Archana Kumari Shaw1
1Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia 741246, India.
Biology open
|October 10, 2023
概括
连结素43 (Cx43) 通道通过减少戈尔吉重定向和促进集体,连贯的运动来影响细胞迁移. 这表明Cx43在迁移过程中增强了细胞协调,而不是单个细胞的速度.
科学领域:
- 细胞生物学 细胞生物学
- 生物物理学的生物物理.
- 癌症研究 癌症研究
背景情况:
- 细胞迁移对于生理过程和癌症转移至关重要.
- 定向细胞迁移往往涉及Golgi重定向向前沿.
- 在细胞迁移过程中,对戈尔吉重定向的调节仍然不太了解.
研究的目的:
- 研究差距连接蛋白Connexin 43 (Cx43) 在细胞迁移期间调节戈尔吉重定向中的作用.
- 了解Cx43如何影响细胞迁移动态和形态.
主要方法:
- 使用了HeLa WT细胞 (缺乏Cx43) 和HeLa 43细胞 (稳定表达Cx43).
- 评估了细胞迁移期间的戈尔吉形态和重定向.
- 分析了细胞迁移速度,前线连贯性和维丁表达.
- 通过膜高度波动测量基底膜张力.
主要成果:
- 功能性Cx43通道改变了戈尔基形态,并减少了迁移细胞中的戈尔基重定位.
- HeLa 43细胞显示迁移速度降低,但增强了前线连贯性,表明集体迁移.
- Cx43表达与较高的维门和F-actin以及较低的膜张力相关.
- BFA治疗分散了戈尔吉和降低了速度异质性,类似于表达Cx43的细胞.
结论:
- 当Cx43存在时,戈尔吉重定向不是迁移的主要驱动因素.
- Cx43促进集体式的连贯细胞迁移,可能会超越单个细胞的重定向反应.
- Cx43影响细胞机械特性和细胞骨组织,有助于协调细胞运动.
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