Abstract
T cell antigen receptor (TCR) signaling drives distinct responses depending on the differentiation state and context of CD8 + T cells. We hypothesized that access of signal-dependent transcription factors (TFs) to enhancers is dynamically regulated to shape transcriptional responses to TCR signaling. We found that the TF BACH2 restrains terminal differentiation to enable generation of long-lived memory cells and protective immunity after viral infection. BACH2 was recruited to enhancers, where it limited expression of TCR-driven genes by attenuating the availability of activator protein-1 (AP-1) sites to Jun family signal-dependent TFs. In naive cells, this prevented TCR-driven induction of genes associated with terminal differentiation. Upon effector differentiation, reduced expression of BACH2 and its phosphorylation enabled unrestrained induction of TCR-driven effector programs.
Original language | English |
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Pages (from-to) | 851-860 |
Number of pages | 10 |
Journal | Nature Immunology |
Volume | 17 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2016 Jun 21 |
ASJC Scopus subject areas
- Immunology and Allergy
- Immunology