Document Detail


Ah receptor and NF-kappaB interplay on the stage of epigenome.
MedLine Citation:
PMID:  19014911     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor that belongs to the basic helix-loop-helix/Per-ARNT-Sim (bHLH-PAS) family. Its ligands include many natural and synthetic compounds, some of which, such as polyhalogenated aromatic hydrocarbons and polycyclic aromatic hydrocarbons, are important environmental contaminants. NF-kappaB is a pleiotropic factor that regulates many physiological and pathophysiological processes including the immune and inflammatory responses. In the past decade, accumulating evidence suggests close interactions between AhR and NF-kappaB pathways, and these interactions are potentially important mechanisms for many pathological processes such as the chemical-induced immune dysfunctions, carcinogenesis and alteration of xenobiotic metabolism and disposition. AhR-NF-kappaB interaction has become a mechanistic linchpin linking certain pathological responses induced by environmental insults. Furthermore, the AhR-NF-kappaB interaction provides basis for therapeutic applications of certain AhR ligands to treat human diseases. The effects of AhR-NF-kappaB on the epigenome are an important area that is not well understood. In this review, I highlight current research regarding the AhR-NF-kappaB(RelA) interactions with emphasis on the epigenetic impacts of these interactions on chromatin modifications and transcription elongation control.
Authors:
Yanan Tian
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Review     Date:  2008-10-28
Journal Detail:
Title:  Biochemical pharmacology     Volume:  77     ISSN:  1873-2968     ISO Abbreviation:  Biochem. Pharmacol.     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2009-02-09     Completed Date:  2009-03-06     Revised Date:  2009-05-21    
Medline Journal Info:
Nlm Unique ID:  0101032     Medline TA:  Biochem Pharmacol     Country:  England    
Other Details:
Languages:  eng     Pagination:  670-80     Citation Subset:  IM    
Affiliation:
Interdisciplinary Graduate Program of Toxicology, Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX 77843-4466, USA. ytian@cvm.tamu.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Chromatin / genetics,  metabolism
Cytochrome P-450 CYP1A1 / genetics,  metabolism
Environmental Pollutants / toxicity
Epigenesis, Genetic*
Gene Expression Regulation / drug effects
Humans
NF-kappa B / genetics,  physiology*
Receptor Cross-Talk / physiology*
Receptors, Aryl Hydrocarbon / genetics,  physiology*
Grant Support
ID/Acronym/Agency:
ES09859/ES/NIEHS NIH HHS
Chemical
Reg. No./Substance:
0/Chromatin; 0/Environmental Pollutants; 0/NF-kappa B; 0/Receptors, Aryl Hydrocarbon; EC 1.14.14.1/Cytochrome P-450 CYP1A1

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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