一个YAP/TAZ-ARHGAP29-RhoA信号轴调节细胞突起和整体蛋白粘附
Manuel Rogg1, Jasmin I Maier1, Martin Helmstädter2
1Institute of Surgical Pathology, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany.
Cells
|July 14, 2023
概括
淋巴细胞疾病中的足细胞功能障碍会损害功能. 研究人员确定EPB41L5 (Yurt) 对于机械传导至关重要,揭示ARHGAP29是病进展的关键参与者.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
背景情况:
- 淋巴细胞疾病,通常源于细胞功能障碍,显著促进慢性病的发病.
- 了解 podocyte 特定信号对于阐明疾病机制和开发向疗法至关重要.
研究的目的:
- 研究EPB41L5 (Yurt) 在细胞功能和机械传导中的作用.
- 为了确定新的信号通路和参与细胞疾病的分子参与者.
主要方法:
- 对于EPB41L5 (Yurt) 在多索菲拉细胞和人类细胞中的功能丧失研究.
- 对EPB41L5淘汰赛 podocytes 的转录和蛋白质组分析.
- 抑制YAP/TAZ-TEAD转录因子复合体的作用.
- 对ARHGAP29的抑制和对RhoA激活和细胞形态的评估.
主要成果:
- 细胞中Yurt的损失导致了蛋白质的吸收和裂隔膜缺陷.
- 在人体细胞中,EPB41L5 缺陷影响了YAP/TAZ介导的机械传导.
- 确定ARHGAP29是一种EPB41L5和YAP/TAZ依赖基因.
- ARHGAP29的敲击模仿了EPB41L5功能丧失的表型,包括RhoA激活和改变的细胞粘附.
结论:
- EPB41L5对于通过YAP/TAZ通路进行细胞机械转导至关重要.
- ARHGAP29充当下游效应因子,调解细胞中的EPB41L5和YAP/TAZ信号传递.
- 在早期淋巴细胞疾病中,ARHGAP29的升高表明了 podocyte mechanotransduction 中的一个新的反循环.
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