alexa T-bet in disease.


Journal of Clinical & Cellular Immunology

Author(s): Lazarevic V, Glimcher LH

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Abstract 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-γ (IFN-γ) 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. This article was published in Nat Immunol and referenced in Journal of Clinical & Cellular Immunology

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