巨细胞衍生FGFR1通过PLCγ介导的NF-κB炎症信号通路的激活驱动动动动脉硬化
Lintao Wang1,2,3, Wu Luo1,4, Suya Zhang3
1Department of Pharmacy and Institute of Inflammation, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Shangtang Road 158, Hangzhou, Zhejiang 310014, China.
Cardiovascular research
|June 6, 2024
概括
巨细胞中的纤维细胞生长因子受体1 (FGFR1) 通过驱动炎症和脂质吸收促进动脉样硬化. 抑制FGFR1可以减少动脉样硬化病变,这表明FGFR1是心血管疾病的治疗点.
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 (AS) 是心血管疾病的主要原因之一.
- 纤维细胞生长因子受体 (FGFR) 通路蛋白在动脉样硬化病变中升高.
- FGFR信号传导在AS病变发生过程中的作用尚不清楚.
研究的目的:
- 研究纤维细胞生长因子受体1 (FGFR1) 信号在动脉样硬化的发展和进展中的作用.
- 在AS的背景下,阐明FGFR1在巨细胞中的作用的潜在机制.
主要方法:
- 在人类动脉样硬化病变和高脂肪饮食 (HFD) 的Apoe-/-小鼠模型中分析FGFR1水平.
- 在Apoe-/-小鼠中,骨髓体表达Fgfr1的遗传删除.
- 使用AZD4547.7.1进行FGFR1的药理抑制.
- 巨细胞功能测定和RNA测序.
主要成果:
- 在人类动脉样硬化病变内的巨细胞和HFD的Apoe-/-小鼠中观察到FGFR1表达的增加.
- 在小鼠中,骨髓细胞Fgfr1缺乏显著降低了动脉样硬化病变的大小和脂质积累.
- 用AZD4547抑制FGFR1模仿了遗传删除的保护作用.
- 巨细胞中的FGFR1信号传递对炎症反应和氧化LDL吸收至关重要,通过脂酶-C- (PLCγ) 和核因子-κB (NF-κB) 激活.
结论:
- 巨细胞中的新型FGFR1-PLCγ-NF-κB信号轴有助于炎症性动脉样硬化.
- FGFR1代表了治疗AS和相关心血管疾病的潜在治疗标.
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