miR-92a-3p调节H9c2心肌细胞中乙醇诱导的亡
Yan Meng1, Zhenzhen Hu2, Chenyi Zhang2
1Department of Nutrition, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.
Cell stress & chaperones
|April 6, 2024
概括
微RNA-92a-3p (miR-92a-3p) 通过向MSK2和CREB3L2.2,在H9c2心肌细胞中促进乙醇诱导的亡. 这种微RNA在与酒精有关的心肌细胞损伤中起着关键作用.
科学领域:
- 心血管生物学 心血管生物学
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 乙醇暴露可以诱导心肌细胞的亡,导致酒精性心肌病变.
- 乙醇诱导的心肌细胞亡背后的特定分子机制尚未完全理解.
- 微RNAs (miRNAs) 正在成为细胞过程的关键调节者,包括细胞亡.
研究的目的:
- 研究miR-92a-3p在乙醇诱导的H9c2心肌细胞亡中的作用.
- 在这种情况下,要识别 miR-92a-3p 调节的目标基因和信号通路.
- 阐明针对miR-92a-3p的治疗潜力,以减轻酒精引起的心脏损伤.
主要方法:
- 用乙醇对待H9c2细胞 (24小时100毫米).
- 使用RT-qPCR量化了miR-92a-3p的表达.
- 细胞亡通过Annexin V/propidium iodide染色和流动细胞计量进行了评估.
- 用miR-92a-3p模仿剂或抑制剂进行传染以调节其表达.
- 目标基因验证涉及RT-qPCR,西部涂抹和双露西法酶记者测定.
- 与亡相关的分子和信号通路组件的蛋白质水平被用西方模糊分析.
主要成果:
- 在乙醇处理的H9c2细胞中,miR-92a-3p显著上调.
- 过度表达miR-92a-3p增强了乙醇诱导的亡,而抑制则减少了它.
- miR-92a-3p直接准了基因和应激激活蛋白激酶2 (MSK2) 和CREB3样蛋白2 (CREB3L2).
- miR-92a-3p通过抑制MSK2/CREB/Bcl-2信号通路来促进亡.
结论:
- miR-92a-3p是乙醇诱导的H9c2心肌细胞损伤中的亲亡因子.
- 该miR-92a-3p/MSK2/CREB3L2轴在调节乙醇诱导的心肌细胞亡方面发挥着至关重要的作用.
- 向miR-92a-3p可能为酒精性心肌病提供一种新的治疗策略.
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