Abstract:
BACKGROUND:The aquatic birnavirus infectious pancreatic necrosis virus (IPNV) causes infectious pancreatic necrosis (IPN), a severe disease in farmed salmonid fish. IPNV has a very broad host range and infects many different species of fish as well as molluscs and crustaceans. Investigation of the host reservoir of a virus may reveal important molecular mechanisms governing the infection processes such as receptors and entry mechanisms. In the present work we have studied whether IPNV is able to infect cells with different mammalian origin. RESULTS:IPNV bound in a specific manner to a membrane protein of the rabbit kidney cell line RK-13 as shown by the use of a virus overlay protein binding assay (VOPBA). Six different mammalian cell lines were inoculated with IPNV and incubated in parallels at different temperatures. At 7 days post inoculation (dpi), IPNV was detected by indirect immunofluorescent antibody test (IFAT) in all the cell lines. Confocal microscopy confirmed intracellular presence of the virus. No apparent cytopathic effect (cpe) was observed in any of the cultures, and no viral replication was demonstrated with real-time RT-PCR. CONCLUSION:Our results show that IPNV is able to enter into a wide range of mammalian cells, and virus entry is most likely receptor mediated. We found no indication of IPNV replication in any of the mammalian cell lines tested.
journal_name
Virol Jjournal_title
Virology journalauthors
Ørpetveit I,Küntziger T,Sindre H,Rimstad E,Dannevig BHdoi
10.1186/1743-422X-9-228subject
Has Abstractpub_date
2012-10-05 00:00:00pages
228issn
1743-422Xpii
1743-422X-9-228journal_volume
9pub_type
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