机械敏感性超级增强剂调节内皮细胞中与动脉样硬化相关的基因
Jin Li1,2, Jiayu Zhu2, Olivia Gray3
1Committee on Molecular Metabolism and Nutrition, Biological Sciences Division, The University of Chicago, Chicago, IL, USA.
The Journal of cell biology
|January 17, 2024
概括
血液流动中的机械力调节血管健康. 这项研究揭示了流感超级增强剂如何控制与动脉样硬化相关的基因,影响内皮细胞功能和疾病.
科学领域:
- 心血管生物学 心血管生物学
- 基因组学就是基因组学.
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 血液动力学,血液流动的机械力量,关键调节血管平衡和病理生理学.
- 血管疾病,如动脉样硬化,主要表现在动脉曲和分叉,由于血液流动模式受到干扰.
研究的目的:
- 在不同的血液动力学条件下,系统地识别血管内皮中单核酸多态 (SNP) 丰富的囊体.
- 描述内皮增强剂,特别是超级增强剂的调节作用,以应对动脉样硬化倾向的干扰流和动脉样硬化保护的单向流.
主要方法:
- 对内皮细胞转录组学,3D表观遗传学和人类遗传学的综合分析.
- 干扰和激活CRISPR,以对已识别的监管元素进行功能验证.
主要成果:
- 在内皮细胞中确定了典型和超级增强剂,突出显示了流感超级增强剂的关键作用.
- 验证了一种新型的单向流动诱导超强增强剂,可以调节抗氧化基因 (NQO1,CYB5B,WWP2).
- 在血管内皮中发现了一种引起流动干扰的超级增强剂,驱动血管内皮中的原血栓基因 (EDN1,HIVEP).
结论:
- 多原子分析揭示了动脉样硬化背景下流感性内皮细胞表观基因组的cis调节结构.
- 超级增强剂在血管疾病相关的内皮机械传导途径中发挥着关键的调节作用.
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