학술논문
MHC class II–dependent basophil–CD4+ T cell interactions promote TH 2 cytokine–dependent immunity.
Document Type
Article
Author
Source
Subject
*MAJOR histocompatibility complex
*DENDRITIC cells
*BASOPHILS
*T cells
*IMMUNITY
*HELMINTHIASIS
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*
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Language
ISSN
1529-2908
Abstract
Dendritic cells can prime naive CD4+ T cells; however, here we demonstrate that dendritic cell–mediated priming was insufficient for the development of T helper type 2 cell–dependent immunity. We identify basophils as a dominant cell population that coexpressed major histocompatibility complex class II and interleukin 4 message after helminth infection. Basophilia was promoted by thymic stromal lymphopoietin, and depletion of basophils impaired immunity to helminth infection. Basophils promoted antigen-specific CD4+ T cell proliferation and interleukin 4 production in vitro, and transfer of basophils augmented the population expansion of helminth-responsive CD4+ T cells in vivo. Collectively, our studies suggest that major histocompatibility complex class II–dependent interactions between basophils and CD4+ T cells promote T helper type 2 cytokine responses and immunity to helminth infection. [ABSTRACT FROM AUTHOR]