Journal
NATURE IMMUNOLOGY
Volume 12, Issue 7, Pages 597-606Publisher
NATURE PORTFOLIO
DOI: 10.1038/ni.2059
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Funding
- US National Institutes of Health [P01 NS038037, CA112663]
- Danone Group
- Cancer Research Institute
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The activation of immune-defense mechanisms in response to a microbial attack must be robust and appropriately tailored to fight particular types of pathogens. Infection with intracellular microorganisms elicits a type 1 inflammatory response characterized by mobilization of T helper type 1 (T(H)1) cells to the site of infection, where they are responsible for the recruitment and activation of macrophages. At the center of the type 1 inflammatory response is the transcription factor T-bet, a critical regulator of the T(H)1 differentiation program. T-bet induces the production of interferon-gamma ( IFN-gamma) and orchestrates the T(H)1 cell-migratory program by regulating the expression of chemokines and chemokine receptors. However, tight regulation of the type 1 inflammatory response is essential for the prevention of immunopathology and the development of organ-specific autoimmunity. In this review, we discuss how T-bet expression drives autoaggressive and inflammatory processes and how its function in vivo must be delicately balanced to avoid disease.
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