WW域结合蛋白2通过促进Y盒结合蛋白1核转位,加剧新极端增生症
Lili Xiao1, Siyuan Fan1,2, Yihuan Wang3
1Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China.
概括
WW域结合蛋白2 (WBP2) 通过促进光滑肌肉细胞的增殖,驱动血管损伤后的复缩. 准WBP2可以预防新极端增生症,并改善心血管干预后的结果.
科学领域:
- 血管生物学 血管生物学
- 分子心脏病学分子心脏病学
- 瘤原体信号传递
背景情况:
- 穿皮冠状动脉干预 (PCI) 后的静脉仍然是一个临床挑战.
- 新极端增生症 (NIH) 背后的分子机制尚未完全理解.
- WW域结合蛋白2 (WBP2) 是一种瘤蛋白,在血管生物学中具有未定义的作用.
研究的目的:
- 调查WBP2在新极端增生症 (NIH) 和血管光滑肌细胞 (VSMC) 增殖中的作用.
- 阐明WBP2影响血管损伤反应的分子机制.
主要方法:
- 利用小鼠动脉绑定 (CAL) 模型诱导血管损伤.
- 评估了WBP2表达,NIH范围 (组织病理学) 和VSMC扩散/迁移 (FUCCI,Transwell测定).
- 研究了WBP2与Y盒结合蛋白1 (YBX1) 的相互作用及其对YBX1酸化和核转位的影响.
主要成果:
- 血管损伤后和PDGF-BB刺激时,WBP2的表达增加.
- WBP2的淘汰减少了NIH和VSMC的扩散,而过度表达加剧了这些影响.
- WBP2通过RSK介导的酸化促进YBX1的核转移,激活增殖基因.
结论:
- 通过增强YBX1核转移,WBP2促进NIH和VSMC的扩散.
- WBP2是血管损伤反应的关键调解者.
- WBP2代表了一个潜在的治疗点来管理复原.
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