Proteomic investigation of the time course responses of RAW 264.7 macrophages to infection with Salmonella enterica

Liang Shi, Saiful M. Chowdhury, Heather S. Smallwood, Hyunjin Yoon, Heather M. Mottaz-Brewer, Angela D. Norbeck, Jason E. McDermott, Therese R W Clauss, Fred Heffron, Richard D. Smith, Joshua N. Adkins

    Research output: Contribution to journalArticle

    44 Citations (Scopus)

    Abstract

    To investigate the extent to which macrophages respond to Salmonella infection, we infected RAW 264.7 macrophages with Salmonella enterica serotype Typhimurium and analyzed macrophage proteins at various time points following infection by using a global proteomic approach. A total of 1,006 macrophage and 115 Salmonella proteins were identified with high confidence. Most of the Salmonella proteins were observed in the late stage of the infection time course, which is consistent with the fact that the bacterial cells proliferate inside RAW 264.7 macrophages. The peptide abundances of most of the identified macrophage proteins remained relatively constant over the time course of infection. Compared to those of the control, the peptide abundances of 244 macrophage proteins (i.e., 24% of the total identified macrophage proteins) changed significantly after infection. The functions of these Salmonella-affected macrophage proteins were diverse, including production of antibacterial nitric oxide (i.e., inducible nitric oxide synthase), production of prostaglandin H2 (i.e., cyclooxygenase 2), and regulation of intracellular traffic (e.g., sorting nexin 5 [SNX5], SNX6, and SNX9). Diverse functions of the Salmonella-affected macrophage proteins demonstrate a global macrophage response to Salmonella infection. Western blot analysis not only confirmed the proteomic results for a selected set of proteins but also revealed that (i) the protein abundance of mitochondrial superoxide dismutase increased following macrophage infection, indicating an infection-induced oxidative stress in mitochondria, and (ii) in contrast to infection of macrophages by wild-type Salmonella, infection by the sopB deletion mutant had no negative impact on the abundance of SNX6, suggesting a role for SopB in regulating the abundance of SNX6.

    Original languageEnglish (US)
    Pages (from-to)3227-3233
    Number of pages7
    JournalInfection and Immunity
    Volume77
    Issue number8
    DOIs
    StatePublished - Aug 2009

    Fingerprint

    Salmonella enterica
    Proteomics
    Macrophages
    Infection
    Salmonella
    Proteins
    Salmonella Infections
    Sorting Nexins
    Prostaglandin H2
    Peptides
    Mitochondrial Proteins
    Nitric Oxide Synthase Type II
    Cyclooxygenase 2
    Superoxide Dismutase
    Mitochondria
    Nitric Oxide
    Oxidative Stress

    ASJC Scopus subject areas

    • Immunology
    • Microbiology
    • Parasitology
    • Infectious Diseases

    Cite this

    Shi, L., Chowdhury, S. M., Smallwood, H. S., Yoon, H., Mottaz-Brewer, H. M., Norbeck, A. D., ... Adkins, J. N. (2009). Proteomic investigation of the time course responses of RAW 264.7 macrophages to infection with Salmonella enterica. Infection and Immunity, 77(8), 3227-3233. https://doi.org/10.1128/IAI.00063-09

    Proteomic investigation of the time course responses of RAW 264.7 macrophages to infection with Salmonella enterica. / Shi, Liang; Chowdhury, Saiful M.; Smallwood, Heather S.; Yoon, Hyunjin; Mottaz-Brewer, Heather M.; Norbeck, Angela D.; McDermott, Jason E.; Clauss, Therese R W; Heffron, Fred; Smith, Richard D.; Adkins, Joshua N.

    In: Infection and Immunity, Vol. 77, No. 8, 08.2009, p. 3227-3233.

    Research output: Contribution to journalArticle

    Shi, L, Chowdhury, SM, Smallwood, HS, Yoon, H, Mottaz-Brewer, HM, Norbeck, AD, McDermott, JE, Clauss, TRW, Heffron, F, Smith, RD & Adkins, JN 2009, 'Proteomic investigation of the time course responses of RAW 264.7 macrophages to infection with Salmonella enterica', Infection and Immunity, vol. 77, no. 8, pp. 3227-3233. https://doi.org/10.1128/IAI.00063-09
    Shi, Liang ; Chowdhury, Saiful M. ; Smallwood, Heather S. ; Yoon, Hyunjin ; Mottaz-Brewer, Heather M. ; Norbeck, Angela D. ; McDermott, Jason E. ; Clauss, Therese R W ; Heffron, Fred ; Smith, Richard D. ; Adkins, Joshua N. / Proteomic investigation of the time course responses of RAW 264.7 macrophages to infection with Salmonella enterica. In: Infection and Immunity. 2009 ; Vol. 77, No. 8. pp. 3227-3233.
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