Short-hairpin RNAs delivered by recombinant adeno-associated virus inhibited the replication of influenza A viruses in vitro

被引:1
作者
Zhang, Gui [1 ]
Ng, Fai [2 ]
Chen, Min [2 ]
机构
[1] Capital Med Univ, Beijing Tongren Hosp, Dept Lab Med, Beijing 100730, Peoples R China
[2] Univ Hong Kong, Dept Microbiol, Pokfulam, Hong Kong, Peoples R China
关键词
Influenza A virus; Short-hairpin RNAs; AAV; RNAi; Replication; MATRIX;
D O I
10.1016/j.virol.2021.10.002
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Antiviral short-hairpin RNAs (shRNAs) delivered by recombinant adeno-associated virus (rAAV) were investigated for their potential prophylactic and therapeutic applications related to the influenza A virus (IAV). To express shRNAs efficiently, an H1 promoter was inserted into the commercial rAAV2 system. The modified rAAV2 system could express shRNAs, and the purified rAAV was obtained at levels over 10(13) viral genomes/ml and 10(10) viral infection units/ml. The shNP-1496-n and shM2-925 delivered by rAAV could inhibit the replication of the H1N1 and H5N1 virus by targeting the conserved regions of the IAV nucleoprotein and matrix 2 genes in MDCK cells. The shNP-1496-n and shM2-925 expressed by rAAV could provide potent and long-term anti-H5N1 virus effects in rAAV-shRNA-enriched MDCK cells. Our findings provide a rational basis for developing RNA interference for the prevention and therapy of IAV infection.
引用
收藏
页码:46 / 52
页数:7
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