Adenovirus vector-mediated RNA interference for the inhibition of human parvovirus B19 replication

作者：Brandt Marius R G; Kirste Ariane G; Pozzuto Tanja; Schubert Steffen; Kandolf Reinhard; Fechner Henry; Bock C Thomas; Kurreck Jens^*

来源：Virus Research, 2013, 176(1-2): 155-160.

DOI：10.1016/j.virusres.2013.05.020

• RNA interference
• Parvovirus B19
• Small interfering RNA
• Antiviral therapy

Human parvovirus B19 (B19V) has been considered to cause acute and chronic myocarditis, which is accompanied by endothelial dysfunction. Currently, no causative treatment option for B19V-infections is available. Since RNA interference (RNAi) has proven to be a highly potent antiviral approach, the aim of the current study was to develop an RNAi-based strategy to inhibit B19V replication. Three B19V-VP2-specific short hairpin RNAs (shRNAs) were designed and tested for their silencing activity in reporter assays and the expression cassette of the best one was introduced into an adenoviral shuttle vector (Ad5). B19V-permissive UT7/Epo-S1 cells were infected with B19V and the RNAi triggers were delivered by the adenoviral vector (Ad5shVP2) 24 h thereafter. The shRNA targeting the B19V-VP2 gene significantly suppressed VP2 mRNA levels as determined by quantitative RT-PCR. Additionally, also the expression levels of the non-targeted non-structural B19V-NS1 mRNA were strongly reduced. Our results demonstrate that vector-mediated delivery of shRNA expression cassettes targeting the structural B19-VP2 gene is a suitable approach to inhibit B19V replication.

• 出版日期2013-9