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Updated: Jan 31, 2026

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Passaging Human Neural Stem Cells
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培养细胞在常规通过后的附着和平整过程中激活IRE1
Paige Dillon1, Lincoln Hollingshead1, Julie Hollien1
1School of Biological Sciences, University of Utah, Salt Lake City, Utah, United States.
microPublication biology
|January 30, 2026
概括
常规的细胞传递触发了Xbp1剪接,激活了展开的蛋白质反应. 这独立于ER压力发生,这表明细胞在重新附着和分培养后扩散时启动了这种途径.
科学领域:
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 细胞内膜网膜 (ER) 的压力通常会通过IRE1-介导的Xbp1mRNA剪接激活未折叠蛋白质反应 (UPR).
- 这一过程产生了一种转录因子,对恢复蛋白质稳定至关重要.
研究的目的:
- 为了调查Xbp1拼接是否在没有人工ER压力因素的例行细胞培养程序中发生.
- 确定在细胞传递过程中影响Xbp1拼接的因素.
主要方法:
- 在培养小鼠MC3T3-E1细胞.
- 使用各种解离缓冲器执行例行细胞传递.
- 评估Xbp1拼接的情况.
- 使用不粘附的培养皿.
主要成果:
- 在日常传递过程中,在培养细胞中观察到Xbp1拼接,独立于ER压力.
- 分离缓冲器类型没有影响Xbp1拼接.
- 当细胞在不粘附的表面上培养时,剪接减少了.
结论:
- 培养的哺乳动物细胞可以在通过后的重新附着和传播的机械和粘合过程中启动展开的蛋白质反应.
- 通过过程中的细胞微环境和物理线索可以影响UPR激活.
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