长非编码RNA 1392通过与ELAVL1相互作用来调节MDA5,以抑制Coxsackievirus B5感染
Jing Li1, Jinwei Li1, Peiying Teng1
1Medical School, Kunming University of Science and Technology, Kunming, 650500, China.
Virologica Sinica
|August 5, 2023
概括
一种新型的长非编码RNA,LINC1392,通过激活干扰素刺激基因,增强了针对coxsackievirus B5 (CVB5) 的抗病毒免疫反应. 这一发现为针对CVB5感染的抗病毒药物开发提供了新的途径.
科学领域:
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 长非编码RNAs (lncRNAs) 越来越多地被认为是它们在生物和病理过程中的作用.
- 主体lncRNAs参与抗病毒免疫,但它们在Coxsackievirus B5 (CVB5) 感染中的特定功能尚不清楚.
研究的目的:
- 识别和描述参与宿主对CVB5感染反应的新型功能lncRNAs.
- 阐明 lncRNAs 调节对CVB的先天免疫力的分子机制5.
主要方法:
- 在CVB5感染细胞中识别和描述LINC1392.
- 通过病毒RNA和IFN-β诱导LINC1392的分析.
- 研究LINC1392对干扰素刺激基因 (ISG) 和病毒复制的影响.
- 涉及ELAVL1结合和MDA5激活的机制研究.
- 在CVB5感染的小鼠模型中的体内研究.
主要成果:
- 一种新的细胞质lncRNA,LINC1392,被确定并被发现是高度可诱导的CVB5感染.
- LINC1392通过激活MDA5促进ISG (IFIT1,IFIT2,IFITM3) 的表达,从而抑制CVB5在体外复制.
- LINC1392与ELAVL1结合,防止ELAVL1与MDA5相互作用,其245-835 nt位点对于这种相互作用和抗病毒活性至关重要.
- 在受感染的小鼠中,LINC1392的使用抑制了CVB5的复制,并减少了组织损伤.
结论:
- 新型lncRNA LINC1392作为I型干扰素 (IFN-I) 信号通路的积极调节者,对抗CVB5感染.
- 了解LINC1392在宿主天生的免疫力中的调节作用,为开发针对CVB5.5的新型抗病毒疗法提供了基础.
- 对于管理CVB5相关疾病来说,LINC1392是一个潜在的治疗目标.
关键词:
考克萨基病毒B5 (CVB5) 病毒类似于RNA结合蛋白1 (ELAVL1) 的ELAV.长非编码RNAs (lncRNAs) 是一种长非编码RNA.黑色素瘤分化相关基因5 (MDA5)一类干扰子 (IFN-I) 信号通路的信号通路.更多相关视频
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