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鱼病毒的春季病毒症调节了时间依赖的未折叠蛋白质反应,以促进病毒复制

Alejandro Romero¹, Antonio Figueras¹, Beatriz Novoa¹

¹Instituto de Investigaciones Marinas Spanish National Research Council (CSIC), Vigo, Spain.

Frontiers in immunology

|April 18, 2025

概括

鱼病毒 (SVCV) 的春季病毒症劫持了宿主.

科学领域:

水产养殖病毒学病毒学
细胞生物学细胞生物学
传染病研究传染病研究

背景情况:

鱼病毒 (SVCV) 的春季病毒病是水产养殖的主要威胁.
目前没有针对SVCV的有效抗病毒药物和疫苗.
了解宿主-病原体相互作用是控制SVCV的关键.

研究的目的:

研究SVCV如何利用宿主展开的蛋白质反应 (UPR) 来进行复制.
为了确定特定的UPR途径参与SVCV病变.
探索UPR调制作为对抗SVCV的潜在抗病毒策略.

主要方法:

ZF4细胞和斑马鱼幼虫被感染了SVCV.
使用qPCR分析了未折叠蛋白质反应 (UPR).
使用UPR调节器来评估它们对病毒复制和生存的影响.
研究了UPR通路的关键组成部分 (BiP,ATF4,PERK,IRE1α).

主要成果:

SVCV利用UPR,在感染初期准BiP和ATF4,以促进病毒RNA合成和翻译.
后来,BiP,PERK和IRE1α通路的激活有助于病毒后代的释放和宿主细胞过程.
调节ATF6和PERK通路显著影响SVCV复制.
在斑马鱼中进行的初步体内研究表明,UPR调制可以对抗SVCV感染.

结论:

SVCV操纵宿主UPR以促进其复制周期.
特定的UPR通路对于SVCV感染的不同阶段至关重要.
针对UPR途径,特别是ATF6和PERK,为抗病毒药物开发提供了一种新的策略.
化学调制UPR为SVCV提供了一个有前途的治疗方法,需要进一步优化.

关键词:

在SVCV中,SVCV是最重要的.抗病毒活动的抗病毒活性.细胞内膜网膜 (ER) 是一个免疫反应的免疫反应.展开的蛋白质反应 (UPR)病毒感染病毒感染病毒复制病毒复制

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