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Activation of nuclear factor-kappaB.

Authors
Type
Published Article
Journal
Methods in Molecular Biology
1064-3745
Publication Date
Volume
315
Pages
141–150
Identifiers
PMID: 16110155
Source
Medline

Abstract

Nuclear factor-kappaB (NF-kappaB) is a key transcription factor that regulates the expression of genes involved in immune and inflammatory responses and in cell death and survival. This chapter describes in detail the method for measuring the NF-kappaB binding activity in the cultured human mast cell line HMC-1 using the electrophoretic mobility shift assay: the activation of NF-kappaB was illustrated by adding lipopolysaccharide to mast cells, nuclear proteins were isolated, and the NF-kappaB binding activity was determined. We also demonstrate the specificity of the NF-kappaB binding activity using a competition and supershift assay with specific antibodies that recognize NF-kappaB subunits p50 and p65. Lipopolysaccharide caused a rapid and significant increase in NF-kappaB binding activity.

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