Better safe than sorry: TOB1 employs multiple parallel regulatory pathways to keep Th17 cells quiet

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Th17 cells are key players in antibacterial and antifungal immunity, but have also been implicated in autoimmunity. Interestingly, Th17 cells poorly proliferate upon stimulation, a phenotype that was attributed to a decreased sensitivity to T-cell receptor (TCR) stimulation, and to low IL-2 production by Th17 cells. In this issue of the European Journal of Immunology, Santarlasci et al. [Eur. J. Immunol. 2014. 44: 654-661] shed further light on the molecular mechanism that keeps Th17 cells at bay. They identify the transcriptional regulator TOB1, which not only impairs IL-2 production in Th17 cells, but also blocks the expression of cell cycle genes. Strikingly, TOB1 suppresses Th17-cell proliferation through several pathways, including impaired signal transduction, transcription, and possibly also post-transcriptional regulation
Original languageEnglish
Pages (from-to)646-649
JournalEuropean Journal of Immunology
Issue number3
Publication statusPublished - 2014

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