准YAP/TAZ机制,发出信号以改善度诱导的施莱姆运河细胞病理生物学
Haiyan Li1,2,3, Megan Kuhn4, Ruth A Kelly4
1Department of Ophthalmology and Visual Sciences, SUNY Upstate Medical University, Syracuse, New York, United States.
American journal of physiology. Cell physiology
|December 18, 2023
概括
眼光障碍 眼光障碍 眼光障碍 眼光障碍
科学领域:
- 眼科医生 眼科 眼科
- 生物医学工程 生物医学工程
- 细胞生物学 细胞生物学
背景情况:
- 青光眼与施莱姆运河 (SC) 内壁内皮质的生物机械性质的改变有关,导致眼睛外流能力降低.
- 青光眼中状眼网的硬表明,机械转导在SC细胞功能障碍中起着作用.
- 通过YAP/TAZ响应细胞外基质 (ECM) 刚化的SC细胞机制信号的具体机制尚不清楚.
研究的目的:
- 调查ECM硬化如何影响人类SC细胞中的YAP/TAZ活性.
- 确定破坏YAP/TAZ机械信号是否可以减轻SC细胞病理生物学并改善外流设施.
- 探索YAP/TAZ抑制对眼睛高血压的治疗潜力.
主要方法:
- 使用一种新型,可调节的生物聚合物水凝来模拟不同的ECM刚度.
- 在不同的硬度条件下检查了YAP/TAZ激活,细胞骨重组和SC细胞的ECM重塑.
- 评估了药理和遗传YAP/TAZ抑制对SC细胞功能和ex vivo外流设施的影响.
主要成果:
- 经过ECM硬化诱导病理性YAP/TAZ激活和SC细胞的细胞骨变化,这些变化在矩阵软化后可逆.
- 破坏YAP/TAZ信号传递的废除度诱导的SC细胞功能障碍,包括改变的细胞骨和ECM重塑.
- 韦特波芬是一种YAP/TAZ抑制剂,在正常小鼠眼中增加了ex vivo外流能力.
结论:
- 异常的YAP/TAZ机械信号在与玻璃眼相关的SC细胞功能障碍中起着病理作用.
- 针对YAP/TAZ机械信号提供了一个有前途的治疗策略,用于治疗青光眼的眼睛高血压.
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