Linked Life Data

10428482

Source:http://linkedlifedata.com/resource/pubmed/id/10428482

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1999-8-16
pubmed:abstractText
Transforming growth factor-alpha (TGF-alpha) increased the expression of 12-lipoxygenase activity in a time-dependent manner in human epidermoid carcinoma A431 cells. The increase of 12-lipoxygenase activity was accompanied by an increase in 12-lipoxygenase mRNA. The effect of TGF-alpha on the promoter activation of 12-lipoxygenase gene was analyzed by using the luciferase fusion vectors. A dose-dependent effect of TGF-alpha on the reporter activity was observed, which paralleled with its effect on enzyme activity. Transient transfection with a series of 5'-deleted constructs showed that the 5'-flanking region spanning from -224 to -100 bp from translation starting site played an important role for TGF-alpha response. Site-directed mutagenesis and gel mobility shift assay indicated that two Sp1 binding sequences residing at -158 to -150 bp and 123 to -114 bp were responsible for the TGF-alpha in activation of human 12-lipoxygenase gene transcription. Expression of Sp1, but not Sp3, stimulated the promoter activity of 12-lipoxygenase in SL2 cells, indicating that the binding of Sp1 with Sp1 binding sequences played a significant role in the regulation of 12-lipoxygenase gene.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0014-5793
pubmed:author
pubmed:issnType
Print
pubmed:day
16
pubmed:volume
455
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
105-10
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Induction of 12-lipoxygenase expression by transforming growth factor-alpha in human epidermoid carcinoma A431 cells.
pubmed:affiliation
Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't