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Review
. 2006 Apr:210:171-86.
doi: 10.1111/j.0105-2896.2006.00375.x.

Circuitry of nuclear factor kappaB signaling

Affiliations
Review

Circuitry of nuclear factor kappaB signaling

Alexander Hoffmann et al. Immunol Rev. 2006 Apr.

Abstract

Over the past few years, the transcription factor nuclear factor (NF)-kappaB and the proteins that regulate it have emerged as a signaling system of pre-eminent importance in human physiology and in an increasing number of pathologies. While NF-kappaB is present in all differentiated cell types, its discovery and early characterization were rooted in understanding B-cell biology. Significant research efforts over two decades have yielded a large body of literature devoted to understanding NF-kappaB's functioning in the immune system. NF-kappaB has been found to play roles in many different compartments of the immune system during differentiation of immune cells and development of lymphoid organs and during immune activation. NF-kappaB is the nuclear effector of signaling pathways emanating from many receptors, including those of the inflammatory tumor necrosis factor and Toll-like receptor superfamilies. With this review, we hope to provide historical context and summarize the diverse physiological functions of NF-kappaB in the immune system before focusing on recent advances in elucidating the molecular mechanisms that mediate cell type-specific and stimulus-specific functions of this pleiotropic signaling system. Understanding the genetic regulatory circuitry of NF-kappaB functionalities involves system-wide measurements, biophysical studies, and computational modeling.

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