普莱克辛D1通过焦点粘附激酶/帕克西林通路负面调节巨细胞衍生的泡细胞迁移
Chenlei Li1, Yan Niu2, Jie Chen3
1Graduate School of Inner Mongolia Medical University, Inner Mongolia Medical University, Hohhot, 010110, PR China; College of Basic Medicine, Inner Mongolia Medical University, Hohhot, 010110, PR China.
素D1 (PLXND1) 负面调节巨细胞迁移,阻碍它们的运动并促进动脉样硬化. 抑制PLXND1可能通过恢复巨细胞的运动来为动脉样硬化提供治疗策略.
科学领域:
- 心血管生物学 心血管生物学
- 细胞生物学 细胞生物学
- 免疫学 免疫学 免疫学
背景情况:
- 巨细胞泡细胞的形成是动脉样硬化发展的核心.
- 素D1 (PLXND1) 在动脉样硬化斑块上升调节,但其在巨细胞中的功能尚不清楚.
- 这项研究研究了PLXND1在巨细胞迁移和动脉样硬化进展中的作用.
研究的目的:
- 确定Plexin D1 (PLXND1) 在动脉样硬化背景下巨细胞迁移中的作用.
- 阐明PLXND1影响巨细胞运动的分子机制.
主要方法:
- 利用高脂肪饮食诱导的动脉样硬化小鼠模型和牛LDL诱导的泡细胞模型.
- 评估了PLXND1表达及其对巨细胞迁移的影响,使用西方抹杀,Transwell测定和免疫光.
- 研究了涉及FAK/Paxillin和CDC42/PAK的信号通路.
主要成果:
- PLXND1和Sema3E在ApoE-/-小鼠的动脉样硬化斑块内的巨细胞中显著上调和同位.
- 氧化低密度脂蛋白 (ox-LDL) 治疗增加了巨细胞中的PLXND1表达,减少了它们的迁移能力和伪形成.
- PLXND1通过调节FAK/Paxillin酸化和下游CDC42/PAK信号来调节巨细胞迁移.
结论:
- 素D1 (PLXND1) 作为动脉样硬化中巨细胞迁移的负调节剂.
- PLXND1的机制涉及到FAK/Paxillin和CDC42/PAK信号通路.
- 向PLXND1可能代表了动脉样硬化的一种新型治疗方法.
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