期刊
NATURE IMMUNOLOGY
卷 15, 期 12, 页码 1143-1151出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ni.3027
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资金
- NWO-ALW
- Landsteiner Foundation for Blood Research
- Academic Medical Center
- US National Institutes of Health [AI095245, DK072201]
- Burroughs Wellcome Trust Fund
- Leukemia and Lymphoma Society
- Irma-Hirschl Charitable Trust
- Monique Weill-Caulier Charitable Trust
Activated CD8(+) T cells choose between terminal effector cell (TEC) or memory precursor cell (MPC) fates. We found that the signaling receptor Notch controls this 'choice'. Notch promoted the differentiation of immediately protective TECs and was correspondingly required for the clearance of acute infection with influenza virus. Notch activated a major portion of the TEC-specific gene-expression program and suppressed the MPC-specific program. Expression of Notch was induced on naive CD8(+) T cells by inflammatory mediators and interleukin 2 (IL-2) via pathways dependent on the metabolic checkpoint kinase mTOR and the transcription factor T-bet. These pathways were subsequently amplified downstream of Notch, creating a positive feedback loop. Notch thus functions as a central hub where information from different sources converges to match effector T cell differentiation to the demands of an infection.
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