A role for dietary selenium and selenoproteins in allergic airway inflammation

Peter R. Hoffmann, Claude Jourdan Le Saux, Fukun W. Hoffmann, Peter S. Chang, Oana Bollt, Qingping He, Elizabeth K. Tam, Marla J. Berry

Research output: Contribution to journalArticle

61 Scopus citations

Abstract

Asthma is driven by allergic airway inflammation and involves increased levels of oxidative stress. This has led to speculation that antioxidants like selenium (Se) may play important roles in preventing or treating asthma. We fed diets containing low (0.08 parts per million), medium (0.25 parts per million), or high (2.7 parts per million) Se to female C57BL/6 mice and used an established OVA challenge protocol to determine the relationship between Se intake and the development of allergic airway inflammation. Results demonstrated that mice fed medium levels of Se had robust responses to OVA challenge in the lung as measured by lung cytokine levels, airway cellular infiltrate, eosinophilia, serum anti-OVA IgE, airway hyperreactivity, goblet cell hyperplasia, and phosphorylated STAT-6 levels in the lung. In contrast, responses to OVA challenge were less robust in mice fed low or high levels of Se. In particular, mice fed low Se chow showed significantly lower responses compared with mice fed medium Se chow for nearly all readouts. We also found that within the medium Se group the expression of lung glutathione peroxidase-1 and liver selenoprotein P were increased in OVA-challenged mice compared with PBS controls. These data suggest that Se intake and allergic airway inflammation are not related in a simple dose-response manner, which may explain the inconsistent results obtained from previous descriptive studies in humans. Also, our results suggest that certain selenoproteins may be induced in response to Ag challenges within the lung.

Original languageEnglish (US)
Pages (from-to)3258-3267
Number of pages10
JournalJournal of Immunology
Volume179
Issue number5
DOIs
StatePublished - Sep 1 2007
Externally publishedYes

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

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  • Cite this

    Hoffmann, P. R., Saux, C. J. L., Hoffmann, F. W., Chang, P. S., Bollt, O., He, Q., Tam, E. K., & Berry, M. J. (2007). A role for dietary selenium and selenoproteins in allergic airway inflammation. Journal of Immunology, 179(5), 3258-3267. https://doi.org/10.4049/jimmunol.179.5.3258