...
首页> 外文期刊>Journal of cellular biochemistry. >MiR‐370 inhibits vascular inflammation and oxidative stress triggered by oxidized low‐density lipoprotein through targeting TLR4
【24h】

MiR‐370 inhibits vascular inflammation and oxidative stress triggered by oxidized low‐density lipoprotein through targeting TLR4

机译:MiR-370通过靶向TLR4抑制通过氧化低密度脂蛋白引发的血管炎症和氧化应激

获取原文
获取原文并翻译 | 示例
           

摘要

Abstract Atherosclerosis, as a chronic cardiovascular disease, still remains a serious threat to human health. Inflammation and oxidative stress are commonly involved in various stages of atherosclerosis development. MicroRNAs are reported to play important roles in macrophages, which can respond to inflammation and oxidative stress. In our current study, we focused on the biological roles of miR‐370 in atherosclerosis. According to the previously research, miR‐370 was downregulated in AS mice models. Oxidized low‐density lipoprotein (Ox‐LDL) is regarded as a crucial regulator of atherosclerosis and we observed that miR‐370 was decreased by ox‐LDL dose‐dependently and time‐dependently in THP‐1 cells. Then, it was found that miR‐370 overexpression was able to inhibit inflammation molecules including IL‐6 and IL‐1β. Meanwhile, ROS levels, and malondialdehyde (MDA) were also restrained by miR‐370 mimics in vitro. Toll‐like receptor 4 (TLR4) has been implicated in many inflammation diseases. It can serve as a target of miR‐370 and TLR4 expression was greatly increased in ox‐LDL‐incubated THP‐1 cells in a time and dose dependent manner. The negative correlation was validated using a dual‐luciferase reporter assay in our study. In conclusion, our present study revealed that miR‐370 can reduce inflammatory reaction and inhibit the ROS production by targeting TLR4 in THP‐1 cells.
机译:摘要动脉粥样硬化作为一种慢性心血管疾病,仍然严重威胁着人类健康。炎症和氧化应激通常参与动脉粥样硬化发展的各个阶段。据报道,微小RNA在巨噬细胞中发挥重要作用,巨噬细胞可以对炎症和氧化应激做出反应。在我们目前的研究中,我们关注miR-370在动脉粥样硬化中的生物学作用。根据之前的研究,在AS小鼠模型中,miR-370表达下调。氧化低密度脂蛋白(Ox-LDL)被认为是动脉粥样硬化的关键调节因子,我们观察到,在THP-1细胞中,Ox-LDL剂量依赖性和时间依赖性地降低miR-370。然后,我们发现miR-370过表达能够抑制炎症分子,包括IL-6和IL-1β。同时,在体外,ROS水平和丙二醛(MDA)也受到miR-370模拟物的抑制。Toll样受体4(TLR4)与许多炎症疾病有关。它可以作为miR-370的靶点,在ox-LDL培养的THP-1细胞中,TLR4的表达以时间和剂量依赖性的方式显著增加。在我们的研究中,通过双荧光素酶报告试验验证了负相关性。总之,我们目前的研究表明,miR-370可以通过靶向THP-1细胞中的TLR4来减少炎症反应并抑制ROS的产生。

著录项

  • 来源
    《Journal of cellular biochemistry.》 |2018年第7期|共7页
  • 作者单位

    Department of EmergencyRenmin Hospital of Wuhan UniversityWuchang Wuhan China;

    Department of Neurology Huai'an Second People's HospitalThe Affiliated Huai'an Hospital of Xuzhou;

    Department of Neurology Huai'an Second People's HospitalThe Affiliated Huai'an Hospital of Xuzhou;

    Department of EmergencyRenmin Hospital of Wuhan UniversityWuchang Wuhan China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 生物化学;
  • 关键词

    atherosclerosis; miR‐370; ox‐LDL; TLR4;

    机译:动脉粥样硬化;miR-370;ox-LDL;TLR4;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号