干扰素诱导的circRNAs逃脱了疹病毒宿主关闭,并抑制了Lytic感染
Sarah E Dremel1, Takanobu Tagawa1, Vishal N Koparde2,3
1HIV and AIDS Malignancy Branch, National Cancer Institute, Bethesda, 20892, USA.
EMBO reports
|January 23, 2024
概括
循环RNAs (circRNAs) 在疹病毒感染期间抵抗宿主关闭. 干扰素刺激的circRNAs,如circirRELL1,表现出泛疹病毒的抗病毒活性,提供了一种新的治疗策略.
科学领域:
- 病毒学 病毒学
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
背景情况:
- 疹病毒使用宿主关闭机制来抑制抗病毒反应.
- 循环RNA (circRNAs) 是一种具有潜在调节作用的非编码RNA类.
- 环环RNAs与疹病毒感染之间的相互作用在很大程度上仍未被探索.
研究的目的:
- 在阿尔法,贝塔和玛疹病毒感染期间对circRNAs进行全球分析.
- 为了研究干扰素刺激的circRNAs在抗病毒防御中的作用.
- 阐明circRNAs发挥抗病毒活性的机制.
主要方法:
- 对疹病毒感染细胞进行RNA测序和嵌合结分析.
- 在子宫外表达测定疹病毒内啡核酸酶.
- 干扰素刺激测定和circRNAs功能的增益/损失研究.
主要成果:
- circRNAs通常对疹病毒诱导的宿主关闭具有抗性.
- 四个circRNAs通常在Lytic人类疹病毒感染期间被诱导.
- 干扰素-β或-γ可调节67个circRNAs,其中circRELL1对HSV-1和KSHV具有强大的抗病毒活性.
结论:
- circRNAs代表了一个稳定的分子类别,可以抵抗宿主关闭.
- 干扰素刺激的circRNAs具有显著的抗病毒特性.
- 提出了一种双方向的抗病毒策略,涉及干扰素刺激基因的mRNA和circRNA.
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