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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences >
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Enhanced propagation of fish nodaviruses in BF-2 cells persitently infected with snakehead retrovirus (SnRV)
| Title: | Enhanced propagation of fish nodaviruses in BF-2 cells persitently infected with snakehead retrovirus (SnRV) |
| Authors: | Nishizawa, Toyohiko Browse this author →KAKEN DB | | Kokawa, Yuki Browse this author | | Wakayama, Takao Browse this author | | Kinoshita, Shinichi Browse this author | | Yoshimizu, Mamoru Browse this author →KAKEN DB |
| Keywords: | Persistent infection | | Fish nodavirus | | SJNNV | | RGNNV | | Retrovirus | | SnRV |
| Issue Date: | 3-Mar-2008 |
| Publisher: | Inter-Research |
| Journal Title: | Diseases of Aquatic Organisms |
| Volume: | 79 |
| Issue: | 1 |
| Start Page: | 19 |
| End Page: | 25 |
| Publisher DOI: | 10.3354/dao01882 |
| PMID: | 18429438 |
| Abstract: | Fish nodaviruses are causative agents of viral nervous necrosis causing high mortality in cultured marine fishes around the world. The first successful isolation of fish nodavirus was made with SSN-1 cells, which are persistently infected with snakehead retrovirus (SnRV). In the present study, a BF-2 cell line persistently infected with SnRV (PI-BF-2) was established to evaluate the influence of SnRV on the production of fish nodavirus. The PI-BF-2 cells were slightly more slender than BF-2 cells, but no difference was observed in propagation rate between both cell lines. No difference was observed in production of SnRV between PI-BF-2 and SSN-1 cell lines. Although both PI-BF-2 and BF-2 cell lines showed no cytopathic effect (CPE) after inoculation of striped jack nervous necrosis virus (SJNNV) and redspotted grouper nervous necrosis virus (RGNNV), these fish nodaviruses could be amplified in BF-2 cells, and moreover, production of fish nodaviruses in the PI-BF-2 cell line was more than 40 times higher than in BF-2 cells. Thus, it was concluded that BF-2 cell permissiveness to fish nodaviruses was enhanced by persistent infection with SnRV. Furthermore, homologous cDNA to genomic RNA of SJNNV was detected from both PI-BF-2 and SSN-1 cell lines persistently infected with SnRV. The amount of nodavirus cDNA in SJNNV-inoculated PI-BF-2 cells was clearly lower than that in SJNNV-inoculated SSN-1 cells. |
| Rights: | © 2008 Inter-Research |
| Type: | article |
| URI: | http://hdl.handle.net/2115/52201 |
| Appears in Collections: | 水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 吉水 守
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