主要的密室蛋白集成粘附驱动的信号来调节原重塑
Nuno M Coelho1, Pardis Riahi1, Yongqiang Wang1
1Faculty of Dentistry, University of Toronto, Toronto, ON, Canada.
Cellular signalling
|October 5, 2024
概括
迪斯科丁域受体1 (DDR1) 途径抑制β-1整合素信号传递. 主要体蛋白 (MVP) 连接DDR1和焦粘附激酶 (FAK),调节原诱导的细胞信号和MMP1的表达.
科学领域:
- 细胞信号通道是细胞信号通道.
- 细胞外矩阵相互作用.
- 受体氨酸激酶的受体.
背景情况:
- 迪斯科伊丁域受体1 (DDR1) 与纤维状原蛋白相互作用,影响β-1整合素信号传递.
- 连接DDR1和β-1整合蛋白在原结合时发出信号的精确机制仍未确定.
研究的目的:
- 为了确定调解DDR1和β-1整合素信号传递之间的功能相互作用的分子,以响应原蛋白.
- 阐明这些相互作用在调节下游信号通路中的作用.
主要方法:
- 原结合测定试验 原结合试验
- 药理上抑制DDR1的发生.
- 细胞培养在不同的基质 (纤维蛋白) 上.
- 光位查检查 光位查检查
- 免疫沉和质谱学
- 蛋白质与蛋白质相互作用映射映射
- 最值得信赖的企业 (MVP) 淘汰研究
- 人类结肠癌组织的免疫抑制.
主要成果:
- 原诱导的DDR1激活显著降低了β-1整合素依赖的ERK酸化和MMP1表达.
- 抑制DDR1或培养细胞在纤维内素上恢复了ERK酸化和MMP1表达.
- DDR1激活通过调节焦粘附激酶 (FAK) 自酸化来抑制β-1整合素依赖的ERK信号传递.
- 确定主要密室蛋白 (MVP) 是一个链接器,根据基质结合DDR1和FAK.
- 在原培养细胞中,与DDR1相关的MVP和MVP敲击恢复了信号传递.
- 在侵袭性人类结肠癌中,DDR1和MVP同位于人体内.
结论:
- MVP充当连接DDR1和FAK的关键中间体,从而调节β-1整合素依赖信号通路.
- 这些相互作用对于控制响应DDR1激活的原体降解至关重要.
- 这些发现突出了一个新的信号轴,涉及DDR1,MVP和FAK在癌症进展和细胞外矩阵重塑中.
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