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- Title
Interleukins 1beta and 6 but not transforming growth factor-beta are essential for the differentiation of interleukin 17-producing human T helper cells.
- Authors
Acosta-Rodriguez, Eva V; Napolitani, Giorgio; Lanzavecchia, Antonio; Sallusto, Federica
- Abstract
Interleukin 17 (IL-17)-producing CD4(+) helper T cells (T(H)-17 cells) have been linked to host defense and autoimmune diseases. In mice, the differentiation of T(H)-17 cells requires transforming growth factor-beta and IL-6 and the transcription factor RORgammat. We report here that for human naive CD4(+) T cells, RORgammat expression and T(H)-17 polarization were induced by IL-1beta and enhanced by IL-6 but were suppressed by transforming growth factor-beta and IL-12. Monocytes and conventional dendritic cells, but not monocyte-derived dendritic cells activated by microbial stimuli, efficiently induced T(H)-17 priming, and this function correlated with antigen-presenting cell production of IL-1beta and IL-6 but not IL-12. Our results identify cytokines, antigen-presenting cells and microbial products that promote the polarization of human T(H)-17 cells and emphasize an important difference in the requirements for the differentiation of T(H)-17 cells in humans and mice.
- Publication
Nature immunology, 2007, Vol 8, Issue 9, p942
- ISSN
1529-2908
- Publication type
Journal Article
- DOI
10.1038/ni1496