Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2003-10-21
pubmed:abstractText
Placenta growth factor (PlGF), a homodimeric glycoprotein that is homologous to vascular endothelial growth factor (VEGF), is mitogenic to endothelial cells and protects trophoblast from apoptosis. Alternative splicing of mature mRNA gives rise to three known isoforms of PlGF. PlGF is expressed by human trophoblast during normal pregnancy, however, it is not known which isoforms are produced. We have utilized RT-PCR to characterize PlGF isoform expression in normal human trophoblast and umbilical vein endothelial cells (HUVEC). Our results show that PlGF-1, PlGF-2, and PlGF-3 isoforms are expressed by trophoblast and HUVECs. In addition, both cell types also express a novel variant of PlGF, tentatively termed PlGF-4, which has not been previously reported. PlGF-4 consists of the same sequence of PlGF-3, plus the heparin binding domain previously thought to be present only in PlGF-2. Presence of the heparin binding domain in PlGF-4 suggests that this variant would remain cell membrane-associated and thus could influence trophoblast and endothelial cells in an autocrine manner.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0165-0378
pubmed:author
pubmed:issnType
Print
pubmed:volume
60
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
53-60
pubmed:dateRevised
2009-11-25
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Evidence of a novel isoform of placenta growth factor (PlGF-4) expressed in human trophoblast and endothelial cells.
pubmed:affiliation
Department of Obstetrics and Gynecology, University of Tennessee Graduate School of Medicine, 1924 Alcoa Highway, Knoxville, TN 37920, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't