RGD Reference Report - Lead induces COX-2 expression in glial cells in a NFAT-dependent, AP-1/NF¿B-independent manner. - Rat Genome Database

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Lead induces COX-2 expression in glial cells in a NFAT-dependent, AP-1/NF¿B-independent manner.

Authors: Wei, Jinlong  Du, Kejun  Cai, Qinzhen  Ma, Lisha  Jiao, Zhenzhen  Tan, Jinrong  Xu, Zhou  Li, Jingxia  Luo, Wenjin  Chen, Jingyuan  Gao, Jimin  Zhang, Dongyun  Huang, Chuanshu 
Citation: Wei J, etal., Toxicology. 2014 Nov 5;325:67-73. doi: 10.1016/j.tox.2014.08.012. Epub 2014 Sep 2.
RGD ID: 13207490
Pubmed: PMID:25193092   (View Abstract at PubMed)
PMCID: PMC4238429   (View Article at PubMed Central)
DOI: DOI:10.1016/j.tox.2014.08.012   (Journal Full-text)

Epidemiologic studies have provided solid evidence for the neurotoxic effect of lead for decades of years. In view of the fact that children are more vulnerable to the neurotoxicity of lead, lead exposure has been an urgent public health concern. The modes of action of lead neurotoxic effects include disturbance of neurotransmitter storage and release, damage of mitochondria, as well as induction of apoptosis in neurons, cerebrovascular endothelial cells, astroglia and oligodendroglia. Our studies here, from a novel point of view, demonstrates that lead specifically caused induction of COX-2, a well known inflammatory mediator in neurons and glia cells. Furthermore, we revealed that COX-2 was induced by lead in a transcription-dependent manner, which relayed on transcription factor NFAT, rather than AP-1 and NFκB, in glial cells. Considering the important functions of COX-2 in mediation of inflammation reaction and oxidative stress, our studies here provide a mechanistic insight into the understanding of lead-associated inflammatory neurotoxicity effect via activation of pro-inflammatory NFAT3/COX-2 axis.

Gene Ontology Annotations    Click to see Annotation Detail View

Biological Process
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
cellular response to lead ion  IEP 13207490 RGD 

Objects Annotated

Genes (Rattus norvegicus)
Ptgs2  (prostaglandin-endoperoxide synthase 2)


Additional Information