Linked Life Data

7615828

Source:http://linkedlifedata.com/resource/pubmed/id/7615828

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1995-8-24
pubmed:databankReference
pubmed:abstractText
PDGF has been shown to contribute to hypertrophy in vascular smooth muscle cells (VSMC). PDGF-AA differentially promotes protein synthesis in VSMC from spontaneously hypertensive rats (SHR) but not in those from Wistar-Kyoto rats (WKY). This observation has led us to postulate a role for PDGF alpha receptor (PDGFR-alpha) in the hypertensive hypertrophy of blood vessels. Western and Northern blot analyses demonstrated a high and specific expression of the PDGFR-alpha protein and mRNA in SHR cells but not in WKY cells. To clarify the mechanism of the differential expression of the PDGFR-alpha gene, we isolated the promoter region of the gene. Studies on the promoter functions indicated that this promoter is active in SHR cells but not in WKY cells. The regulatory domain responsible for this difference was narrowed to the sequence between -246 and -139, which enhanced the promoter activity of SHR fivefold over the basal activity. DNase I footprinting and gel-shift assay indicated that this sequence specifically interact with nuclear proteins from VSMC through the binding site for CCAAT/enhancer-binding proteins, and members of the C/enhancer-binding protein family play a significant role in the strain-specific transcription of the PDGFR-alpha gene.
pubmed:grant
pubmed:commentsCorrections
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pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0021-9738
pubmed:author
pubmed:issnType
Print
pubmed:volume
96
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
558-67
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Molecular structure and transcriptional regulation of the gene for the platelet-derived growth factor alpha receptor in cultured vascular smooth muscle cells.
pubmed:affiliation
Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.