通过稳定PPARγ,USP22增强了动脉样硬化斑块的稳定性和巨细胞细胞分裂
Senhu Tang1,2, Chuanghong Lu1,2, Zhongyuan Meng1,2
1Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
Communications biology
|April 29, 2025
概括
乌比基特异性酶22 (USP22) 通过稳定巨细胞中的PPARγ蛋白来保护动脉样硬化,增强它们清除细胞残渣的能力. 抑制USP22会使动脉样硬化恶化,这表明USP22是治疗点.
科学领域:
- 心血管生物学 心血管生物学
- 免疫学 免疫学 免疫学
- 分子医学是分子医学.
背景情况:
- 动脉样硬化是一种主要的全球健康威胁,由慢性炎症驱动,其中巨细胞发挥着关键作用.
- 乌比基特异性酶22 (USP22) 影响巨细胞炎症,但其在动脉样硬化中的特异性功能尚不清楚.
研究的目的:
- 研究USP22在动脉样硬化微环境中的作用及其作为治疗点的潜力.
主要方法:
- 使用的ApoE淘汰 (ApoE-/-) 动脉样硬化的小鼠模型.
- 在实验室中进行了涉及巨细胞炎症和泡细胞形成的研究.
- 研究了USP22对氧酶增殖器激活受体γ (PPARγ) 和细胞的作用机制.
主要成果:
- 在巨细胞中USP22过度表达减少了ApoE-/-小鼠的动脉样硬化进展.
- USP22沉默增加了巨细胞的炎症,泡细胞的形成,以及受损的细胞效应.
- USP22通过抑制其无处不在的化来稳定PPARγ,从而增强了细胞分裂.
- 使用USP22抑制剂 (USP22i-S02) 在ApoE-/-小鼠中加剧了动脉样硬化.
结论:
- 在动脉样硬化中,USP22通过通过PPARγ稳定来增强巨细胞酶的作用,起到保护作用.
- USP22代表了治疗动脉样硬化的潜在治疗标.
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