Linked Life Data

12297307

Source:http://linkedlifedata.com/resource/pubmed/id/12297307

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-3
pubmed:dateCreated
2002-9-25
pubmed:abstractText
Urokinase-type plasminogen activator (uPA) binds with high affinity to its specific cell surface receptor (uPAR) (CD87) via a well-defined sequence within the N-terminal region of uPA (uPA(19-31)). Since this uPA/uPAR-interaction plays a significant role in tumor cell invasion and metastasis, it has become an attractive therapeutic target. Two small peptidic cyclic competitive antagonists of uPA/uPAR-interaction have been developed, based on the uPAR binding site in uPA: WX-360 (cyclo(21,29)[D-Cys21]-uPA(21-30)[S21C;H29C]) and its norleucine (Nle) derivative WX-360-Nle (cyclo(21,29)[D-Cys21]-uPA(21-30)[S21C;K23Nle;H29C]). These peptides display an only five to 10-fold lower affinity to uPAR as compared to the naturally occurring uPAR-ligand uPA. In this study, WX-360 and WX-360-Nle were tested in nude mice for their potency to inhibit tumor growth and intraperitoneal spread of lacZ-tagged human ovarian cancer cells. Intraperitoneal administration of either cyclic peptide (20 mg peptide/kg; 1x daily for 37 days) into the tumor-bearing nude mice resulted in a significant reduction of tumor weight and spread within the peritoneum as compared to the untreated control group. This is the first report demonstrating effective reduction of tumor growth and spread of human ovarian cancer cells in vivo by small synthetic uPA-derived cyclic peptides competitively interfering with uPA/uPAR-interaction. Thus, both WX-360 and WX-360-Nle are promising novel compounds to reduce dissemination of human ovarian carcinoma.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0014-5793
pubmed:author
pubmed:issnType
Print
pubmed:day
25
pubmed:volume
528
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
212-6
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
High-affinity urokinase-derived cyclic peptides inhibiting urokinase/urokinase receptor-interaction: effects on tumor growth and spread.
pubmed:affiliation
Klinische Forschergruppe der Frauenklinik, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, D-81675, München, Germany
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't