Author: ["Vira Bitko","Alla Musiyenko","Olena Shulyayeva","Sailen Barik"]
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Abstract
Respiratory syncytial virus (RSV) and parainfluenza virus (PIV) are two respiratory pathogens of paramount medical significance that exert high mortality. At present, there is no reliable vaccine or antiviral drug against either virus. Using an RNA interference (RNAi) approach, we show that individual as well as joint infection by RSV and PIV can be specifically prevented and inhibited by short interfering RNAs (siRNAs), instilled intranasally in the mouse, with or without transfection reagents. The degree of protection matched the antiviral activity of the siRNA in cell culture, allowing an avenue for quick screening of an efficacious siRNA. When targeting both viruses in a joint infection, excess of one siRNA moderated the inhibitory effect of the other, suggesting competition for the RNAi machinery. Our results suggest that, if properly designed, low dosages of inhaled siRNA might offer a fast, potent and easily administrable antiviral regimen against respiratory viral diseases in humans.Cite this article
Bitko, V., Musiyenko, A., Shulyayeva, O. et al. Inhibition of respiratory viruses by nasally administered siRNA. Nat Med 11, 50–55 (2005). https://doi.org/10.1038/nm1164 