Interleukins 1beta and 6 but not transforming growth factor-beta are essential for the differentiation of interleukin 17-producing human T helper cells.
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.
Institute for Research in Biomedicine, CH-6500 Bellinzona, Switzerland. eva.acosta@irb.unisi.ch
Eva V
EV
Acosta-Rodriguez
Giorgio
G
Napolitani
Antonio
A
Lanzavecchia
Federica
F
Sallusto
D000938:Antigen-Presenting Cells / Q000276:immunology; D002454:Cell Differentiation / Q000276:immunology*; D019070:Cell Lineage / Q000276:immunology; D002478:Cells, Cultured; D016207:Cytokines / Q000276:immunology / Q000378:metabolism; D004797:Enzyme-Linked Immunosorbent Assay; D005434:Flow Cytometry; D006801:Humans; D018664:Interleukin-12 / Q000378:metabolism; D020381:Interleukin-17 / Q000096:biosynthesis; D053583:Interleukin-1beta / Q000378:metabolism*; D015850:Interleukin-6 / Q000378:metabolism*; D057132:Nuclear Receptor Subfamily 1, Group F, Member 3; D018168:Receptors, Retinoic Acid / Q000378:metabolism; D011988:Receptors, Thyroid Hormone / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D016176:T-Lymphocyte Subsets / Q000166:cytology* / Q000378:metabolism; D006377:T-Lymphocytes, Helper-Inducer / Q000166:cytology* / Q000276:immunology; D016212:Transforming Growth Factor beta / Q000378:metabolism*
D016207:Cytokines; D020381:Interleukin-17; D053583:Interleukin-1beta; D015850:Interleukin-6; D057132:Nuclear Receptor Subfamily 1, Group F, Member 3; C539900:RORC protein, human; D018168:Receptors, Retinoic Acid; D011988:Receptors, Thyroid Hormone; C539901:Rorc protein, mouse; D016212:Transforming Growth Factor beta; D018664:Interleukin-12