Vitamin D receptor-deficient mice fail to develop experimental allergic asthma

Anja Wittke, Veronika Weaver, Brett D. Mahon, Avery August, Margherita T. Cantorna

Research output: Contribution to journalArticlepeer-review

164 Scopus citations

Abstract

The active metabolite of vitamin D (1,25-dihydroxyvitamin D3 (1,25(OH)2D3)) is known to modulate the immune response in Th1 cell-directed diseases. To investigate the role of vitamin D in Th2 cell-directed diseases, experimental allergic asthma was induced in vitamin D receptor (VDR) knockout and in wild-type (WT) mice. As expected, WT mice developed symptoms of airway inflammation with an influx of eosinophils, elevated Th2 cytokine levels, mucous production, and airway hyperresponsiveness. The administration of 1,25(OH)2D3 had no effect on asthma severity. The only discernable effect of 1,25(OH)2D3 on experimental allergic asthma in WT mice was an increased expression of two Th2-related genes (soluble CD23 and GATA-3) in lungs of BALB/c mice exposed to Ag through the nasal route only. By contrast, asthma-induced VDR knockout mice failed to develop airway inflammation, eosinophilia, or airway hyperresponsiveness, despite high IgE concentrations and elevated Th2 cytokines. The data suggest that although 1,25(OH)2D3 induced these Th2-type genes, the treatment failed to have any affect on experimental asthma severity. However, VDR-deficient mice failed to develop experimental allergic asthma, suggesting an important role for the vitamin D endocrine system in the generation of Th2-driven inflammation in the lung.

Original languageEnglish (US)
Pages (from-to)3432-3436
Number of pages5
JournalJournal of Immunology
Volume173
Issue number5
DOIs
StatePublished - Sep 1 2004

All Science Journal Classification (ASJC) codes

  • Immunology and Allergy
  • Immunology

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