Inoculation of cyprinid herpesvirus 3 (CyHV-3) on common carp brain cells-influence of process parameters on virus yield

Mletzko A, Amtmann A, Bergmann SM, Lee PA, Christian J, Buchholz R, Becker A (2017)

Publication Language: English

Publication Type: Journal article, Original article

Publication year: 2017

Journal

Book Volume: 53

Pages Range: 579-585

Journal Issue: 7

DOI: 10.1007/s11626-017-0170-1

Abstract

Research of cyprinid herpesvirus 3 (CyHV-3) is focused on the infection mechanism and disease development in animals using genetic and immunological approaches to improve treatments and diagnostics. In contrast, only few tried to investigate the CyHV-3 replication behaviour in available cell cultures. Whereas, obtaining high virus yields by in vitro replication enables achieving of the mentioned above goals easier and more reliable. The following work presents an attempt to illuminate the KHV replication in common carp brain (CCB) cell cultures from the engineering point of view. The isolate KHV-TP30 was used testing the influence on process parameters, such as multiplicity of infection (MOI), time of infection (TOI) and time of harvest (TOH). Virus concentrations and infectivity at different time points of infection were examined using hydrolyzed probe qPCR (Gilad et al. 2004) and 50% tissue culture infectivity dose (TCID₅₀). The data obtained show that while the amount of the virus DNA remains constant after reaching its maximum, the infectivity of the virus decreases. Thus, especially, TOH can be crucial for generating a high-quality virus stock. Applying optimized parameters improved the infectivity of the harvested virus and reached a robust titre as high as 1.9 × 10⁸ TCID₅₀/mL. To our knowledge, so far, there is no information in the peer-reviewed literature showing comparably high virus titres. Such virus yields not only facilitate conduction of further studies, including stability tests of the virus stock under various supplementation or disinfection trails, but also provide enough virus material to perform more detailed examinations of the infection mechanism.

Authors with CRIS profile

Involved external institutions

Friedrich-Loeffler-Institut (FLI), Bundesforschungsinstitut für Tiergesundheit Germany (DE) Bayerisches Landesamt für Gesundheit und Lebensmittelsicherheit (LGL) Germany (DE)

How to cite

APA:

Mletzko, A., Amtmann, A., Bergmann, S.M., Lee, P.A., Christian, J., Buchholz, R., & Becker, A. (2017). Inoculation of cyprinid herpesvirus 3 (CyHV-3) on common carp brain cells-influence of process parameters on virus yield. In Vitro Cellular & Developmental Biology - Animal, 53(7), 579-585. https://dx.doi.org/10.1007/s11626-017-0170-1

MLA:

Mletzko, Adam, et al. "Inoculation of cyprinid herpesvirus 3 (CyHV-3) on common carp brain cells-influence of process parameters on virus yield." In Vitro Cellular & Developmental Biology - Animal 53.7 (2017): 579-585.

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