Antiviral Potency of Small Interfering RNA Molecules

Levanova, Alesia A.

doi:10.1007/978-981-16-9190-4_27

Nanotechnology for Infectious Diseases 2022

DOI: 10.1007/978-981-16-9190-4_27

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Antiviral Potency of Small Interfering RNA Molecules

Alesia A. Levanova

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2023

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Antiviral and protective effect of small interfering RNAs against rift valley fever virus in vitro

et al. 2023

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Background Rift Valley Fever Virus (RVFV) is an arbovirus, a zoonotic disease that resurfaces as a potential hazard beyond geographic boundaries. Fever that can proceed to encephalitis, retinitis, hemorrhagic fever, and death is the main manifestation observed in human infections. RVFV has no authorized medication. The RNA interference (RNAi) gene silencing pathway is extremely well conserved. By targeting specific genes, small interfering RNA (siRNA) can be used to suppress viral replication. The aim of this study was to design specific siRNAs against RVFV and evaluate their prophylactic and antiviral effects on the Vero cells. Methods and results Various siRNAs were designed using different bioinformatics tools. Three unique candidates were tested against an Egyptian sheep cell culture-adapted strain BSL-2 that suppressed RVFV N mRNA expression. SiRNAs were transfected a day before RVFV infection (pre-transfection), and 1 h after the viral infection (post-transfection), and were evaluated to detect the silencing activity and gene expression decrease using real-time PCR and a TCID50 endpoint test. The degree of N protein expression was determined by western blot 48 h after viral infection. D2 which targets the (488–506 nucleotides), the middle region of RVFV N mRNA was the most effective siRNA at 30 nM concentration, it almost eliminates N mRNA expression when utilized as antiviral or preventive therapy. siRNAs had a stronger antiviral silencing impact when they were post-transfected into Vero cells. Conclusion Pre and post-transfection of siRNAs significantly reduced RVFV titer in cell lines, offering novel and potentially effective anti-RVFV epidemics and epizootics therapy.

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Antiviral and protective effect of small interfering RNAs against rift valley fever virus in vitro

et al. 2023

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Antiviral Potency of Small Interfering RNA Molecules

Cited by 1 publication

References 182 publications

Antiviral and protective effect of small interfering RNAs against rift valley fever virus in vitro

Antiviral and protective effect of small interfering RNAs against rift valley fever virus in vitro

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