在急性和长期持久感染期间,DNA病毒群体的流放动态
Sylvain Blois1,2, Benjamin M Goetz3, Anik Mojumder1
1Department of Molecular Biosciences, LaMontagne Center for Infectious Disease, The University of Texas at Austin, Austin, Texas, United States of America.
PLoS pathogens
|May 23, 2025
概括
鼠多重瘤病毒 (muPyV) 在小鼠中建立了长期的感染,持续的低水平的数百个病毒条形码的流失. 再激活事件导致特定条形码的间歇性流失,影响病毒传播动态.
科学领域:
- 病毒学 病毒学
- 传染病的动态传染病的动态.
- 宿主-病原体相互作用
背景情况:
- 了解宿主病毒感染动态对于理解病毒的持久性和传播至关重要.
- 虽然已知病毒感染的细胞机制,但宿主内部的过程仍然不太了解.
- 鼠多样性病毒 (muPyV) 作为研究长期病毒持久性和分泌的模型.
研究的目的:
- 通过使用条形码的小鼠多重瘤病毒模型,研究病毒感染和流放的宿主内部动态.
- 描述单一宿主内的众多病毒变异的长期持久性和传播模式.
- 阐明多病毒无处不在和长期持久性的基础机制.
主要方法:
- 利用差异化条形码的小鼠多重瘤病毒 (muPyV) 来监测单个小鼠中的数千种并行感染.
- 在感染后长时间内,追踪病毒基因组在尿液中流失.
- 在急性和持续性感染阶段,分析了各种器官中的病毒条形码丰度模式.
主要成果:
- 超过2600种病毒变体建立了长期感染,并在单个小鼠中持续数月.
- 在整个感染过程中,不断地发生数百种不同的病毒条形码的低级流放.
- 晚期感染显示了大量特定条形码的间歇性脱落,减少了整体脱落的多样性.
结论:
- 多种病毒平衡连续传播潜力与储备驱动的重新激活事件.
- 这些不断变化的分泌模式为多重瘤病毒的无处不在和长期持久性提供了机制基础.
- 这些发现提供了对许多DNA病毒在宿主中的持久性策略的见解.
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