Home HOME Acta Virologica 2011 Acta Virologica Vol.55, No.3, p.279-282, 2011

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Quarterly, 72-88 pp. per issue
Founded: 1957
ISSN 0001-723X
E-ISSN 1336-2305

Published in English

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Acta Virologica Vol.55, No.3, p.279-282, 2011

Title: Small interfering RNAs targeting viral structural envelope protein genes and the 5ʹ-UTR inhibit replication of bovine viral diarrhea virus in MDBK cells
Author: N. MISHRA, K. RAJUKUMAR, S. KALAIYARASU, S. P. BEHERA, R. K. NEMA, S. C. DUBEY

Abstract: Bovine viral diarrhea viruses (BVDVs) are important pathogens of cattle that occur worldwide, and for which no antiviral therapy is available. In the present study, the inhibitory effect of small interfering (si) RNAs on bovine viral diarrhea virus 1 (BVDV-1) replication in cultured bovine cells was explored. Four synthetic siRNAs were designed to target structural envelope region genes (Erns, E1, and E2) and one cocktail of siRNA was generated to target the 5ʹ-UTR of the BVDV-1 genome. The inhibitory effects of siRNAs were assessed by determination of infectious viral titer, viral antigen and viral RNA. The siRNA cocktail and three of the synthetic siRNAs produced moderate anti-BVDV-1 effect in vitro as shown by 25%–40% reduction in BVDV-1 antigen production, 7.9–19.9-fold reduction in viral titer and 21–48-fold reduction in BVDV-1 RNA copy number. Our findings suggest that siRNA cocktail targeted at the 5ʹ-UTR is a stronger inhibitor of BVDV-1 replication and the targets for siRNA inhibition can be extended to BVDV-1 structural envelope protein genes.

Keywords: bovine viral diarrhea virus; RNA interference; small interfering RNA
Year: 2011, Volume: 55, Issue: 3 Page From: 279, Page To: 282
doi:10.4149/av_2011_03_279


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