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5'复制缺陷的病毒基因组是临床和非临床流感样本的主要组成部分

Xing Li¹, Zhiping Ye¹, Ewan P Plant¹

¹Laboratory of Pediatric and Respiratory Viral Disease, Office of Vaccine Research and Review, CBER, FDA, Silver Spring, MD, USA.

|November 19, 2023

概括

缺陷病毒基因组 (DVGs) 在人类和实验室培养中的流感病毒感染之间存在差异. 这项研究显示,5'复制DVG在患者中很常见,与实验室发现不同,影响DVG研究.

科学领域:

病毒学病毒学
生物信息学是一种生物信息学.
分子生物学分子生物学

背景情况:

缺陷病毒基因组 (DVGs) 在病毒感染中至关重要,但它们的表征有所不同.
之前对流感DVG的研究主要集中在删除类型上,与其他病毒中常见的5'复制DVG不同.
跨研究中不一致的DVG检测可能源于不同的生物信息管道或生物变异.

研究的目的:

通过使用单一的生物信息管道,在流感中标准化DVG分析.
为了比较临床流感样本与实验室培养中的DVG概况.
调查DVG的体内与体外生产以及宿主因素的作用.

主要方法:

来自人类流感样本的下一代测序 (NGS) 数据集的分析.
在感染H5N8流感A病毒的细胞培养和中对DVG种群的比较分析.
应用统一的生物信息管道用于DVG检测和表征.

主要成果:

5'复制DVG在临床人类样本中普遍存在,但在培养样本中不存在.
在体内 () 感染显示5'复制后DVG占主导地位,而在体内 (细胞培养) 感染则有利于删除DVG.
在体内和体外流感病毒感染模型之间观察到DVG产生的显著差异.

结论:

在流感病毒感染中,DVG的组成受到宿主环境 (体内与体外) 的显著影响.
临床样本中5'复制DVG的流行率突显了它们在人类流感中的重要性.
这些发现需要对研究DVG在病变发生中的作用和开发抗病毒策略的方法进行修订.

关键词:

ANP32 是一个ANP32的编号.这是DVG,DVG.疾病疾病疾病免疫反应的免疫反应.流感是一次流感.

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