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Cold Spring Harb Perspect Biol. 2010 Apr;2(4):a000257. doi: 10.1101/cshperspect.a000257. Epub 2009 Oct 14.

Selectivity of the NF-{kappa}B response.

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  • 1Laboratory of Cellular and Molecular Biology, National Institute on Aging, National Institutes of Health, Baltimore, Maryland 21225, USA. ranjan.sen@nih.gov <ranjan.sen@nih.gov>

Abstract

NF-kappaB is activated by many stimuli and NF-kappaB binding sites have been identified in a wide variety of genes. Yet, NF-kappaB-dependent gene expression must be stimulus- and cell-type-specific. In others words, the cellular response to different NF-kappaB activating stimuli, such as TNFalpha, IL-1, and LPS, must be different; and the response of different cell types, such as lymphocytes, fibroblasts, or epithelial cells, to the same NF-kappaB-inducing stimulus must also be different. Finally, kinetics of gene expression must be accounted for, so that all NF-kappaB-dependent genes are not activated simultaneously even if cell type and stimulus are constant. Here, we explore the mechanistic framework in which such regulatory aspects of NF-kappaB-dependent gene expression have been analyzed because they are likely to form the basis for physiological responses.

PMID:
20452937
[PubMed - indexed for MEDLINE]
PMCID:
PMC2845200
Free PMC Article
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