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坦辛IIA通过调节TGF-β/Smad通路来缓解内皮细胞到介质酶的过渡

Hongfei Qi¹, Yalong Kang², Teng Ge³

¹Institute of Integrative Medicine, Shaanxi University of Chinese Medicine, Xianyang 712046, China; Shaanxi & Xianyang Key Laboratory of Integrated Traditional and Western Medicine for Prevention and Treatment of Cardiovascular Diseases, Xianyang 712046, China.

|February 27, 2026

概括

坦辛IIA通过阻断TGF-β/Smad信号传递来抑制内皮-介质酶过渡 (EndMT). 这种来自Salvia miltiorrhiza的天然化合物显示出在PCI后治疗亲密性增生症的潜力.

科学领域:

心血管生物学心血管生物学
细胞信号传输细胞信号传输
药理学药理学是指药理学的学科.

背景情况:

内体增生症是PCI后并发症的一个关键因素,是由血管内皮损伤驱动的.
由TGF-β/Smad信号介导的内皮-介质细胞转换 (EndMT) 在内皮增生症的发展中起着至关重要的作用.
来自Salvia miltiorrhiza的Tanshinone IIA (TanIIA) 证明了在改善内皮功能和减少PCI后炎症方面的安全性和有效性.

研究的目的:

阐明TanIIA减轻TGF-β1诱导EndMT的机制.
研究TanIIA对EndMT标记物和TGF-β/Smad信号通路在人类静脉内皮细胞 (HUVECs) 的影响.

主要方法:

通过使用用TGF-β1.1.治疗的HUVECs建立了体外EndMT模型.
用WST-1试验,光染色和伤口愈合试验来评估细胞活力,形态和迁移.
内皮细胞 (VE-Cadherin) 和间歇性标记物 (α-SMA,FSP-1,COL1),Smad2/3和转录因子 (Slug,Snail) 的蛋白质表达通过PCR和西式斑点分析.

主要成果:

IIA (20μmol·L−1) 显著抑制了HUVEC的增殖,并逆转了TGF-β1诱导的细胞迁移增强.
TGF-β1诱导导致VE-Cadherin的减少和α-SMA,FSP-1和COL1表达的增加.
与TGF-β1模型组相比,TanIIA联合治疗显著降低了Smad2/3水平及其酸化.

结论:

在HUVEC中,TanIIA有效抑制TGF-β1诱导的EndMT.
丹IIA通过抑制Smad信号通路的激活来发挥其保护作用.
这些发现凸显了TanIIA在预防内增生方面的潜在治疗作用.

关键词:

内皮细胞是内皮细胞.细胞内皮 - 介质细胞过渡在支架静置症中.内体增生症是什么?内体增生症是什么坦辛二甲二甲二甲

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