数字农科院2.0

A Strand-Specific Quantitative RT-PCR Method for Detecting vRNA, cRNA, and mRNA of H7N9 Avian Influenza Virus in a Mouse Model

文献类型： 外文期刊

作者： Bo Wang;Guangwen Wang;Yi Han Wang;Xuwei Liu;Manman Li;Huihui Kong;Hualan Chen;Li Jiang;Chengjun Li

作者机构：

关键词： avian influenza virus;H7N9;qRT-PCR;replication kinetics

期刊名称： Viruses

ISSN： 1999-4915

年卷期： 2025 年 17 卷 7 期

页码：

收录情况： SCIE（2025版）

摘要： Avian influenza virus (AIV) remains a persistent threat to both the poultry industry and human health. Among the AIV subtypes posing public health threats, H7N9 AIV is responsible for five epidemic waves of human infection in China. Here, a detection system based on a mouse model was established, which can simultaneously and quantitatively analyze the dynamic changes in the viral genomic RNA (vRNA), complementary RNA (cRNA), and messenger RNA (mRNA) of H7N9 AIV by using reverse transcription primers with tag sequences to reverse transcribe the three species of RNAs into corresponding cDNA templates, which are then absolutely quantified using the TaqMan quantitative PCR method. This system specifically targets the PB2 and NA genes and, for the first time, enables a spatiotemporal analysis of all three viral RNA species within an animal model. Our results revealed that H7N9 AIV exhibits characteristic replication kinetics, with all three species of viral RNAs showing a rapid increase followed by a certain degree of decline. This system offers a powerful tool for us to further advance our understanding of the replication dynamics of AIV in mice.

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