Journal Highlight: Metabolic machinery encrypted in the Raman spectrum of influenza A virus‐inoculated mammalian cells

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  • Published: Dec 3, 2019
  • Author: spectroscopyNOW
  • Channels: Raman
thumbnail image: Journal Highlight: Metabolic machinery encrypted in the Raman spectrum of influenza A virus‐inoculated mammalian cells

Raman spectroscopy has been applied at high spectral resolution to study how the metabolic reactions of Madin–Darby canine kidney cells are affected by influenza type A inoculation.

Image: US CDC

Pezzotti, G., Zhu, W., Adachi, T. et al. (2019). Metabolic machinery encrypted in the Raman spectrum of influenza A virus‐inoculated mammalian cells. Journal of Cellular Physiology online

Abstract: Raman spectroscopy was applied with a high spectral resolution to a structural study of Influenza (type A) virus before and after its inoculation into Madin–Darby canine kidney cells. This study exploits the fact that the major virus and cell constituents, namely DNA/RNA, lipid, and protein molecules, exhibit peculiar fingerprints in the Raman spectrum, which clearly differed between cells and viruses, as well as before and after virus inoculation into cells. These vibrational features, which allowed us to discuss viral assembly, membrane lipid evolution, and nucleoprotein interactions of the virus with the host cells, reflected the ability of the virus to alter host cells' pathways to enhance its replication efficiency. Upon comparing Raman signals from the host cells before and after virus inoculation, we were also able to discuss in detail cell metabolic reactions against the presence of the virus in terms of compositional variations of lipid species, the formation of fatty acids, dephosphorylation of high‐energy adenosine triphosphate molecules, and enzymatic hydrolysis of the hemagglutinin glycoprotein.

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