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dc.contributor.authorPizzolla, A
dc.contributor.authorOh, DY
dc.contributor.authorLuong, S
dc.contributor.authorPrickett, SR
dc.contributor.authorHenstridge, DC
dc.contributor.authorFebbraio, MA
dc.contributor.authorO'Hehir, RE
dc.contributor.authorRolland, JM
dc.contributor.authorHardy, CL
dc.date.accessioned2020-12-21T03:06:43Z
dc.date.available2020-12-21T03:06:43Z
dc.date.issued2016-08-02
dc.identifierpii: PONE-D-15-45294
dc.identifier.citationPizzolla, A., Oh, D. Y., Luong, S., Prickett, S. R., Henstridge, D. C., Febbraio, M. A., O'Hehir, R. E., Rolland, J. M. & Hardy, C. L. (2016). High Fat Diet Inhibits Dendritic Cell and T Cell Response to Allergens but Does Not Impair Inhalational Respiratory Tolerance. PLOS ONE, 11 (8), https://doi.org/10.1371/journal.pone.0160407.
dc.identifier.issn1932-6203
dc.identifier.urihttp://hdl.handle.net/11343/257076
dc.description.abstractThe incidence of obesity has risen to epidemic proportions in recent decades, most commonly attributed to an increasingly sedentary lifestyle, and a 'western' diet high in fat and low in fibre. Although non-allergic asthma is a well-established co-morbidity of obesity, the influence of obesity on allergic asthma is still under debate. Allergic asthma is thought to result from impaired tolerance to airborne antigens, so-called respiratory tolerance. We sought to investigate whether a diet high in fats affects the development of respiratory tolerance. Mice fed a high fat diet (HFD) for 8 weeks showed weight gain, metabolic disease, and alteration in gut microbiota, metabolites and glucose metabolism compared to age-matched mice fed normal chow diet (ND). Respiratory tolerance was induced by repeated intranasal (i.n.) administration of ovalbumin (OVA), prior to induction of allergic airway inflammation (AAI) by sensitization with OVA in alum i.p. and subsequent i.n. OVA challenge. Surprisingly, respiratory tolerance was induced equally well in HFD and ND mice, as evidenced by decreased lung eosinophilia and serum OVA-specific IgE production. However, in a pilot study, HFD mice showed a tendency for impaired activation of airway dendritic cells and regulatory T cells compared with ND mice after induction of respiratory tolerance. Moreover, the capacity of lymph node cells to produce IL-5 and IL-13 after AAI was drastically diminished in HFD mice compared to ND mice. These results indicate that HFD does not affect the inflammatory or B cell response to an allergen, but inhibits priming of Th2 cells and possibly dendritic cell and regulatory T cell activation.
dc.languageEnglish
dc.publisherPUBLIC LIBRARY SCIENCE
dc.rights.urihttps://creativecommons.org/licenses/by/4.0
dc.titleHigh Fat Diet Inhibits Dendritic Cell and T Cell Response to Allergens but Does Not Impair Inhalational Respiratory Tolerance
dc.typeJournal Article
dc.identifier.doi10.1371/journal.pone.0160407
melbourne.affiliation.departmentSir Peter MacCallum Department of Oncology
melbourne.source.titlePLoS One
melbourne.source.volume11
melbourne.source.issue8
dc.rights.licenseCC BY
melbourne.elementsid1115453
melbourne.contributor.authorPizzolla, Angela
dc.identifier.eissn1932-6203
melbourne.accessrightsOpen Access


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