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Inhibition of Hepatitis E Virus Replication by Peptide-Conjugated Morpholino Oligomers Public Deposited

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https://ir.library.oregonstate.edu/concern/articles/cn69m910r

This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Elsevier and can be found at:  http://www.journals.elsevier.com/antiviral-research/

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  • Hepatitis E virus (HEV) infection is a cause of hepatitis in humans worldwide. Recently, persistent and chronic HEV infections have been recognized as a serious clinical problem, especially in immunocompromised individuals. To date, there are no FDA-approved HEV-specific antiviral drugs. In this study, we designed and evaluated antisense peptide-conjugated morpholino oligomers (PPMO) as potential HEV-specific antiviral compounds. Two genetically-distinct strains of human HEV, genotype 1 Sar55 and genotype 3 Kernow C1, which cause acute and chronic hepatitis, respectively, were used to evaluate PPMO inhibition of viral replication in liver cells. Four anti-HEV PPMOs tested led to a significant reduction in the levels of viral RNA and HEV capsid protein as well as luciferase yield from Sar55 replicons in S10-3 liver cells, indicating an effective inhibition of HEV replication. PPMO HP1, which targets the ORF1 translation initiation region, was also effective against the genotype 3 Kernow C1 strain in stably-infected HepG2/C3A liver cells. The antiviral activity observed was specific, dose-responsive, potent and effective, suggesting that further exploration of HP1 as a potential HEV-specific antiviral agent is warranted.
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  • Nan, Y., Ma, Z., Kannan, H., Stein, D. A., Iversen, P. I., Meng, X. J., & Zhang, Y. J. (2015). Inhibition of hepatitis E virus replication by peptide-conjugated morpholino oligomers. Antiviral Research, 120, 134-139. doi:10.1016/j.antiviral.2015.06.006
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  • 120
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  • This work was supported by NIH Grant 1R21AI068881.
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