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在动脉样硬化中,OAS1诱导内皮功能障碍,并通过NFκB通路促进单细胞粘附

Miao Liang¹, Wei-Kang Li¹, Xi-Xi Xie¹

¹The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510120, China; Department of Laboratory Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong, 510120, China.

Archives of biochemistry and biophysics

|November 21, 2024

概括

2'5'-oligoadenylate synthetase 1 (OAS1) 蛋白在动脉样硬化中升高,促进内皮功能障碍和单细胞粘附. 准OAS1和NFκBp65可能为心血管疾病提供新的治疗策略.

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) 的发病包括慢性炎症和内皮功能障碍.
2'-5'-橄乙烯酸合成酶1 (OAS1) 是一种与炎症相关的蛋白质,在AS中作用不清楚.
缓解内皮功能障碍和单细胞粘附是阻止AS进展的关键.

研究的目的:

研究OAS1在内皮功能障碍和动脉样硬化中单细胞粘附中的作用.
探索OAS1,NFκBp65和AS发展之间的关系.
评估OAS1作为AS的潜在治疗点.

主要方法:

对OAS1丰富的人类大动脉截面的生物信息分析.
在体外研究涉及脂聚糖 (LPS) 刺激和OAS1缺乏/敲击.
对活性氧物种 (ROS),氧化 (NO),单细胞粘附和NFκBp65表达的评估.

主要成果:

OAS1在人类动脉样硬化斑中富含,在晚期阶段的水平更高.
通过LPS以时间和度依赖的方式对OAS1的表达进行上调.
OAS1缺乏减弱了LPS诱导的ROS,NO变化和单细胞粘附.
OAS1与斑块中的NFκBp65正相关;OAS1的删除会降低P65.
结合OAS1和NFκBp65的淘汰,显著改善了内皮功能障碍和单细胞粘附.

结论:

在AS中,OAS1在促进内皮功能障碍和单细胞粘附方面发挥着重要作用.
OAS1通过对NFκBp65.5的调节来调节这些过程.
OAS1代表了治疗动脉样硬化的潜在治疗标.

关键词:

动脉样硬化是一种动脉样硬化.内皮细胞功能障碍内皮细胞功能障碍在 NF-κBB 中.在OAS1中,OAS1是OAS1.

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