Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2006-1-17
pubmed:abstractText
Activating transcription factor (ATF) 3 plays a role in determining cell fate and generates a variety of alternatively spliced isoforms in stress response. We have reported previously that splice variant ATF3deltaZip2, which lacks the leucine zipper region, is induced in response to various stress stimuli. However, its biological function has not been elucidated. By using cells treated with tumor necrosis factor-alpha and actinomycin D or cells overexpressing ATF3deltaZip2, we showed that ATF3deltaZip2 sensitizes cells to apoptotic cell death in response to tumor necrosis factor-alpha, at least in part through suppressing nuclear factor (NF)-kappaB-dependent transcription of anti-apoptotic genes such as cIAP2 and XIAP. ATF3deltaZip2 interacts with a p65 (RelA)-cofactor complex containing CBP/p300 and HDAC1 at NF-kappaB sites of the proximal promoter region of the cIAP2 gene in vivo and down-regulates the recruitment of CBP/p300. Our study revealed that ATF3deltaZip2 counteracts anti-apoptotic activity of NF-kappaB, at least in part, by displacing positive cofactor CBP/p300 and provides insight into the mechanism by which ATF3 regulates cell fate through alternative splicing in stress response.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
20
pubmed:volume
281
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1620-9
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:16291753-Activating Transcription Factor 3, pubmed-meshheading:16291753-Adenoviridae, pubmed-meshheading:16291753-Alternative Splicing, pubmed-meshheading:16291753-Animals, pubmed-meshheading:16291753-Apoptosis, pubmed-meshheading:16291753-Cell Line, pubmed-meshheading:16291753-Cell Line, Tumor, pubmed-meshheading:16291753-Dactinomycin, pubmed-meshheading:16291753-Gene Expression Regulation, pubmed-meshheading:16291753-Gene Transfer Techniques, pubmed-meshheading:16291753-Genetic Variation, pubmed-meshheading:16291753-Genetic Vectors, pubmed-meshheading:16291753-Histone Deacetylases, pubmed-meshheading:16291753-Humans, pubmed-meshheading:16291753-NF-kappa B, pubmed-meshheading:16291753-Promoter Regions, Genetic, pubmed-meshheading:16291753-Rats, pubmed-meshheading:16291753-Recombinant Proteins, pubmed-meshheading:16291753-Transfection, pubmed-meshheading:16291753-Tumor Necrosis Factor-alpha
pubmed:year
2006
pubmed:articleTitle
A splice variant of stress response gene ATF3 counteracts NF-kappaB-dependent anti-apoptosis through inhibiting recruitment of CREB-binding protein/p300 coactivator.
pubmed:affiliation
Department of Biochemical Genetics, Medical Research Institute, Tokyo Medical and Dental University, Tokyo 113-8510, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't