Instruction of distinct CD4 T helper cell fates by different notch ligands on antigen-presenting cells

Derk Amsen, J. Magarian Blander, Gap Ryol Lee, Kenji Tanigaki, Tasuku Honjo, Richard A. Flavell

Research output: Contribution to journalArticlepeer-review

788 Scopus citations

Abstract

Antigen-presenting cells (APC) tailor immune responses to microbial encounters by stimulating differentiation of CD4 T cells into the Th1 and Th2 lineages. We demonstrate that APC use the Notch pathway to instruct T cell differentiation. Strikingly, of the two Notch ligand families, Delta induces Th1, while Jagged induces the alternate Th2 fate. Expression of these different Notch ligands on APC is induced by Th1- or Th2-promoting stimuli. Th2 differentiation has been considered a default process as APC-derived instructive signals are unknown. We demonstrate that Jagged constitutes an instructive signal for Th2 differentiation, which is independent of IL4/STAT6. Th2 differentiation induced by APC is abrogated in T cells lacking the Notch effector RBPJκ. Notch directs Th2 differentiation by inducing GATA3 and by directly regulating il4 gene transcription through RBPJκ sites in a 3′ enhancer.

Original languageEnglish
Pages (from-to)515-526
Number of pages12
JournalCell
Volume117
Issue number4
DOIs
StatePublished - 14 May 2004
Externally publishedYes

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