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J Exp Med. 2006 Jun 12;203(6):1435-46. Epub 2006 May 15.

Type 2 immunity is controlled by IL-4/IL-13 expression in hematopoietic non-eosinophil cells of the innate immune system.

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  • 1Howard Hughes Medical Institute, Departments of Medicine and Microbiology/Immunology, University of California San Francisco, San Francisco, CA 94143, USA.

Erratum in

  • J Exp Med. 2006 Jun 12;203(6):1617.

Abstract

Nippostrongylus brasiliensis infection and ovalbumin-induced allergic lung pathology are highly interleukin (IL)-4/IL-13 dependent, but the contributions of IL-4/IL-13 from adaptive (T helper [Th]2 cells) and innate (eosinophil, basophils, and mast cells) immune cells remain unknown. Although required for immunoglobulin (Ig)E induction, IL-4/IL-13 from Th2 cells was not required for worm expulsion, tissue inflammation, or airway hyperreactivity. In contrast, innate hematopoietic cell-derived IL-4/IL-13 was dispensable for Th2 cell differentiation in lymph nodes but required for effector cell recruitment and tissue responses. Eosinophils were not required for primary immune responses. Thus, components of type 2 immunity mediated by IL-4/IL-13 are partitioned between T cell-dependent IgE and an innate non-eosinophil tissue component, suggesting new strategies for interventions in allergic immunity.

PMID:
16702603
[PubMed - indexed for MEDLINE]
PMCID:
PMC2118302
Free PMC Article
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