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Nat Rev Immunol. 2010 Apr;10(4):225-35. doi: 10.1038/nri2735.

How are T(H)2-type immune responses initiated and amplified?

Author information

1
Laboratory of Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA. wpaul@niaid.nih.gov

Abstract

CD4(+) T helper (T(H)) cells have crucial roles in orchestrating adaptive immune responses. T(H)2 cells control immunity to extracellular parasites and all forms of allergic inflammatory responses. Although we understand the initiation of the T(H)2-type response in tissue culture in great detail, much less is known about T(H)2 cell induction in vivo. Here we discuss the involvement of allergen- and parasite product-mediated activation of epithelial cells, basophils and dendritic cells and the functions of the cytokines interleukin-4 (IL-4), IL-25, IL-33 and thymic stromal lymphopoietin in the initiation and amplification of T(H)2-type immune responses in vivo.

PMID:
20336151
PMCID:
PMC3496776
DOI:
10.1038/nri2735
[Indexed for MEDLINE]
Free PMC Article
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