Effect of NV gene deletion in the genome of hirame rhabdovirus (HIRRV) on viral replication and the type I interferon response of the host cell

© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature..

Hirame rhabdovirus (HIRRV), a member of the genus Novirhabdovirus, causes morbidity and mortality in farmed olive flounder (Paralichthys olivaceus). As no information is available on the role of the NV gene of HIRRV, we produced a recombinant HIRRV with the NV gene deleted (rHIRRV-ΔNV) using reverse genetic technology and investigated whether the NV gene knockout affected HIRRV replication and the type I interferon response of the host cell. The rescue of rHIRRV-ΔNV was successful only when IRF9-gene-knockout Epithelioma papulosum cyprini (ΔIRF9-EPC) cells were used, suggesting that the NV protein of HIRRV might be involved in inhibition of the type I interferon response of the host cell. This conclusion was also supported by the significantly higher level of Mx gene induction in EPC cells infected with rHIRRV-ΔNV than in cells infected with recombinant HIRRV without the deletion. When cells were coinfected with rHIRRV-ΔNV and either wild-type HIRRV or wild-type viral hemorrhagic septicemia virus (VHSV), there was a decrease in the growth rate of not only wild-type HIRRV but also wild-type VHSV in a concentration-dependent manner. Further studies are required to investigate the role of HIRRV NV in virulence and its possible importance for the development of attenuated vaccines.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:167

Enthalten in:

Archives of virology - 167(2022), 1 vom: 28. Jan., Seite 77-84

Sprache:

Englisch

Beteiligte Personen:

Ryu, Su Jeong [VerfasserIn]
Kwak, Jun Soung [VerfasserIn]
Kim, Ki Hong [VerfasserIn]

Links:

Volltext

Themen:

Interferon Type I
Journal Article

Anmerkungen:

Date Completed 17.01.2022

Date Revised 17.01.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1007/s00705-021-05286-6

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM332478009