Development of a highly permissive cell line from spotted knifejaw (Oplegnathus punctatus) for red sea bream iridovirus
2017
Abstract We developed a cell line (SKF-9) from spotted knifejaw ( Oplegnathus punctatus ), which is highly susceptible to red sea bream iridovirus (RSIV). Cytopathic effect (CPE) characterized by rounding and enlargement was clearly observed in RSIV-infected SKF-9 cells. The amount of viral production of SKF-9 cells was approximately 100 times greater than that of GF cells, which is conventionally used for RSIV research. The viral titer was not decreased through passages using SKF-9 cells, whereas a considerable reduction in the titer was observed when GF cells were used. On the other hand, control of appropriate passage numbers ( 0 , 10 − 5 , and 10 − 6 . Thus, the SKF-9 cell line can be a useful tool for research of RSIV (and ISKNV) and for vaccine production.
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