Metabolic effects of influenza virus infection in cultured animal cells: Intra- and extracellular metabolite profiling
Ritter JB, Freund S, Genzel Y, Reichl U, Wahl SA (2010)
Publication Type: Journal article
Publication year: 2010
Journal
Book Volume: 4
Article Number: 61
Abstract
Background: Many details in cell culture-derived influenza vaccine production are still poorly understood and approaches for process optimization mainly remain empirical. More insights on mammalian cell metabolism after a viral infection could give hints on limitations and cell-specific virus production capacities. A detailed metabolic characterization of an influenza infected adherent cell line (MDCK) was carried out based on extracellular and intracellular measurements of metabolite concentrations.Results: For most metabolites the comparison of infected (human influenza A/PR/8/34) and mock-infected cells showed a very similar behavior during the first 10-12 h post infection (pi). Significant changes were observed after about 12 h pi: (1) uptake of extracellular glucose and lactate release into the cell culture supernatant were clearly increased in infected cells compared to mock-infected cells. At the same time (12 h pi) intracellular metabolite concentrations of the upper part of glycolysis were significantly increased. On the contrary, nucleoside triphosphate concentrations of infected cells dropped clearly after 12 h pi. This behaviour was observed for two different human influenza A/PR/8/34 strains at slightly different time points.Conclusions: Comparing these results with literature values for the time course of infection with same influenza strains, underline the hypothesis that influenza infection only represents a minor additional burden for host cell metabolism. The metabolic changes observed after12 h pi are most probably caused by the onset of apoptosis in infected cells. The comparison of experimental data from two variants of the A/PR/8/34 virus strain (RKI versus NIBSC) with different productivities and infection dynamics showed comparable metabolic patterns but a clearly different timely behavior. Thus, infection dynamics are obviously reflected in host cell metabolism. © 2010 Ritter et al; licensee BioMed Central Ltd.
Authors with CRIS profile
Involved external institutions
Delft University of Technology (TU Delft)
Netherlands (NL)
Max-Planck-Institut für Dynamik komplexer technischer Systeme / Max Planck Institute for Dynamics of Complex Technical Systems
Germany (DE)
Netherlands (NL)
Max-Planck-Institut für Dynamik komplexer technischer Systeme / Max Planck Institute for Dynamics of Complex Technical Systems
Germany (DE)
How to cite
APA:
Ritter, J.B., Freund, S., Genzel, Y., Reichl, U., & Wahl, S.A. (2010). Metabolic effects of influenza virus infection in cultured animal cells: Intra- and extracellular metabolite profiling. BMC Systems Biology, 4. https://dx.doi.org/10.1186/1752-0509-4-61
MLA:
Ritter, Joachim B., et al. "Metabolic effects of influenza virus infection in cultured animal cells: Intra- and extracellular metabolite profiling." BMC Systems Biology 4 (2010).
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