机械敏感的GPCR和离子通道在剪切应力传感中
Rui Xiao1, Jie Liu2, X Z Shawn Xu3
1Department of Physiology and Aging, Institute on Aging, Center for Smell and Taste, College of Medicine, University of Florida, Gainesville, FL, USA.
Current opinion in cell biology
|August 18, 2023
概括
剪切应力对细胞功能至关重要,其破坏会导致疾病. 本综述详细介绍了特定的机械敏感G蛋白结合受体 (GPCR) 和离子通道如何感知剪切应力.
科学领域:
- 生物物理学的生物物理.
- 细胞生物学 细胞生物学
- 生理学 生理学 生理学
背景情况:
- 剪切应力是血管发育和功能等生理过程中的关键机械暗示.
- 失调的剪切应力有助于疾病,包括动脉样硬化,高血压和慢性病.
- 识别细胞机械传感器的剪切应力至关重要,但不完整.
研究的目的:
- 审查参与剪切应力感知的已知机械传感器.
- 专注于由剪切应力直接激活的G蛋白结合受体 (GPCR) 和离子通道.
- 要突出具体的例子,如血管新素II型1受体,GPR68,组胺H1受体,粘附GPCRs,Piezo和TRP通道.
主要方法:
- 对剪切应力机械传感器研究的文献综述.
- 对拟议和验证的剪切应力感应蛋白质的分析.
- 专注于具有直接剪切应力激活证据的GPCR和离子通道.
主要成果:
- 多个细胞组件,包括GPCRs,G蛋白,受体氨酸激酶,离子通道,甘油和连接蛋白,可以感知剪切应力.
- 机械敏感的GPCRs (例如,血管素II型1受体,GPR68,组胺H1受体,粘附GPCRs) 涉及到剪切应力传感.
- 特定的离子通道,如Piezo和TRP通道,由剪切应力直接激活.
- 这些传感器将机械力转化为下游的生物化学信号.
结论:
- 了解剪切应力机械传感器对于理解生理和病理过程至关重要.
- GPCR和离子通道代表了剪切应力传感器的关键类别.
- 对这些机械传感器的进一步研究可以揭示与剪切压力相关的疾病的治疗点.
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