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肉miR-26a-5p在高度致病性禽流感病毒感染期间调节MDA5

Thi Hao Vu¹, Jubi Heo², Suyeon Kang²

¹Department of Animal Science and Technology, Chung-Ang University, Anseong, 17546, Republic of Korea; Department of Biochemistry and Immunology, National Institute of Veterinary Research, Hanoi, 100000, Viet Nam.

Developmental and comparative immunology

|August 23, 2023

概括

的微RNAgga-miR-26a-5p抑制了MDA5抗病毒通路. 在H5N1感染期间,这种微RNA的下调,这表明它在免疫力对禽流感的作用.

科学领域:

免疫学免疫学免疫学
分子生物学分子生物学
病毒学病毒学

背景情况:

微RNA是动物免疫反应的关键调节者.
禽流感病毒 (AIV) 对家禽健康和全球粮食安全构成重大威胁.

研究的目的:

调查微RNAgga-miR-26a-5p在对高度致病性禽流感病毒 (HPAIV) H5N1感染的免疫反应中的作用.
阐明gga-miR-26a-5p在调节MDA5信号通路中的分子机制.

主要方法:

在HPAIV H5N1感染后的肺组织中量化gga-miR-26a表达.
路西法酶记者分析以确定gga-miR-26a和MDA5 3' UTR之间的相互作用.
在gga-miR-26a过度表达后,信号分子和细胞因子表达的分析.

主要成果:

在感染的肺部,gga-miR-26a的表达显著下调.
gga-miR-26a通过准其3' UTR直接抑制MDA5的翻译.
过度表达gga-miR-26a导致MDA5通路 (MDA5,MAVS,IRF7,NF-κB) 的关键组成部分和下游抗病毒细胞因子 (IL-1β,IFN-γ,IFN-α,IFN-β,Mx1) 的下调.

结论:

gga-miR-26a-5p在MDA5信号通路和对HPAIV H5N1.1的抗病毒反应中起负调节作用.
了解gga-miR-26a-5p的功能可以了解宿主-病原体相互作用以及禽流感的潜在治疗点.

关键词:

肉肉肉肉禽流感病毒是什么禽流感病毒是什么这是一种H5N1流感.MDA5 MDA5 MDA5 的意思是什么意思在 miR-26a 系统中.

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