Impact of Influenza A Virus Infection on the Proteomes of Human Bronchoepithelial Cells from Different Donors

5 years ago

Impact of Influenza A Virus Infection on the Proteomes of Human Bronchoepithelial Cells from Different Donors

Natalia A. Ilyushina, Samuel T. Mindaye, Maryna C. Eichelberger, Michail A. Alterman, Giovanna Fantoni, Raymond P. Donnelly

Susceptibility to influenza A virus is determined by a balance of viral and host factors. The genetic background of the host contributes to the severity of disease, but the influenza-related proteomes of cells from different individuals have not been compared. We used high-resolution mass spectrometry to identify proteins in normal human bronchial epithelial (NHBE) cells isolated from three different donors. Infection of each NHBE cell culture with influenza A/California/07/2009 (H1N1) resulted in expression of viral proteins and a variety of host proteins, including interferons, interferon-stimulated genes, and secreted chemokines/cytokines. The expression level of viral proteins corresponded to the level of host proteins that support influenza infection (i.e., pro-viral proteins); however, production of infectious virus was inversely related to the levels of antiviral proteins, suggesting that a balance of pro-viral proteins and the antiviral response controls virus replication. In summary, our results demonstrate that expression levels of pro-viral as well as antiviral factors are different for each donor and suggest that relative quantitation of these factors may provide a way to identify individuals or population groups who are susceptible to severe influenza disease.

Publisher URL: http://dx.doi.org/10.1021/acs.jproteome.7b00286

DOI: 10.1021/acs.jproteome.7b00286