Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1998-12-2
pubmed:abstractText
Ovarian cancer metastasis is associated with an increase in the urokinase-type plasminogen activator (uPA) and its receptor uPAR. We present evidence that binding of uPA to uPAR provokes a mitogenic response in the human ovarian cancer cell line OV-MZ-6 in which endogenous uPA production had been significantly reduced by stable uPA 'antisense' transfection. High molecular weight (HMW) uPA, independent of its enzymatic activity, produced an up to 95% increase in cell number concomitant with 2-fold elevated [3H]thymidine incorporation as did the catalytically inactive but uPAR binding amino-terminal fragment of uPA, ATF. uPA-induced cell proliferation was significantly decreased by blocking uPA/uPAR interaction by the monoclonal antibody IIIF10 and by soluble uPAR. The efficiency of the uPAR binding synthetic peptide cyclo19,31 uPA19-31 to enhance OV-MZ-6 cell growth proved this molecular domain to be the minimal structural determinant for uPA mitogenic activity. Dependence of uPA-provoked cell proliferation on uPAR was further demonstrated in Raji cells which do not express uPAR and were thus not induced by uPA. However, upon transfection with full-length uPAR, Raji cells acquired a significant growth response to HMW uPA and ATF.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0014-5793
pubmed:author
pubmed:issnType
Print
pubmed:day
30
pubmed:volume
438
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
101-5
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:9821967-Antibodies, Monoclonal, pubmed-meshheading:9821967-Cell Cycle, pubmed-meshheading:9821967-Cell Division, pubmed-meshheading:9821967-DNA, Antisense, pubmed-meshheading:9821967-DNA, Neoplasm, pubmed-meshheading:9821967-Female, pubmed-meshheading:9821967-Humans, pubmed-meshheading:9821967-Lymphocytes, pubmed-meshheading:9821967-Molecular Weight, pubmed-meshheading:9821967-Ovarian Neoplasms, pubmed-meshheading:9821967-Peptide Fragments, pubmed-meshheading:9821967-Plasminogen Activators, pubmed-meshheading:9821967-Protein Binding, pubmed-meshheading:9821967-Receptors, Cell Surface, pubmed-meshheading:9821967-Receptors, Urokinase Plasminogen Activator, pubmed-meshheading:9821967-Transfection, pubmed-meshheading:9821967-Tumor Cells, Cultured, pubmed-meshheading:9821967-Type C Phospholipases, pubmed-meshheading:9821967-Urokinase-Type Plasminogen Activator
pubmed:year
1998
pubmed:articleTitle
Urokinase induces proliferation of human ovarian cancer cells: characterization of structural elements required for growth factor function.
pubmed:affiliation
Frauenklinik der Technischen Universität München, Klinikum rechts der Isar, Munich, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't