Matches in SemOpenAlex for { <https://semopenalex.org/work/W2036699952> ?p ?o ?g. }
- W2036699952 endingPage "982" @default.
- W2036699952 startingPage "971" @default.
- W2036699952 abstract "Interactions between specific cell-surface molecules, which include the urokinase receptor (uPAR) and integrins, are crucial to processes of tumor invasion and metastasis. Here we demonstrate that uPAR and beta1-integrins may cluster at distinct sites at the cell surface of metastatic MDA-MB-231 breast cancer cells and form functional complexes. Attachment assays performed in the presence of a synthetic peptide (p25), which interferes with the formation of uPAR-integrin complexes, reveal that uPAR is able to regulate the adhesive function of integrins in breast cancer cells. On dissociation of the uPAR-integrin complexes by p25, tumor cell attachment to the extracellular matrix was either decreased (vitronectin) or increased (fibronectin). Moreover, the tumor cells display remarkable morphological changes when cultured on fibronectin in the continuous presence of p25, leading to increased cell spreading and attachment. In marked contrast to control conditions, increased cellular adhesion to fibronectin after p25 treatment was entirely beta1-integrin-mediated. The role of uPAR-integrin complexes in tumor progression was studied in an in vivo bone xenograft model. Stably transfected MDA-MB-231 cells that overexpress p25 showed a significant reduction in tumor progression in bone (P < or = 0.0001 versus mock-control). In line with these observations, continuous administration of p25 (25 microg/mouse/day, osmotic minipumps) for 28 days resulted in significantly reduced tumor progression of MDA-MB-231 cells in bone (P < or = 0.005) when compared to scrambled control peptide. In conclusion, our data demonstrate that uPAR can act as an adhesion receptor in breast cancer and is capable of regulating integrin function. Our findings strongly suggest that adhesive and proteolytic events are tightly associated in metastatic breast cancer cells and that functional integrin-uPAR complexes are involved in tumor progression in vivo." @default.
- W2036699952 created "2016-06-24" @default.
- W2036699952 creator A5000516339 @default.
- W2036699952 creator A5000644268 @default.
- W2036699952 creator A5021731198 @default.
- W2036699952 creator A5041173950 @default.
- W2036699952 creator A5048969184 @default.
- W2036699952 creator A5056821715 @default.
- W2036699952 creator A5057643841 @default.
- W2036699952 creator A5083709043 @default.
- W2036699952 creator A5087815642 @default.
- W2036699952 creator A5089225087 @default.
- W2036699952 date "2001-09-01" @default.
- W2036699952 modified "2023-10-03" @default.
- W2036699952 title "Urokinase-Receptor/Integrin Complexes Are Functionally Involved in Adhesion and Progression of Human Breast Cancer in Vivo" @default.
- W2036699952 cites W1490850495 @default.
- W2036699952 cites W1502432090 @default.
- W2036699952 cites W1530062964 @default.
- W2036699952 cites W1591097516 @default.
- W2036699952 cites W1594898068 @default.
- W2036699952 cites W1670322156 @default.
- W2036699952 cites W1831734000 @default.
- W2036699952 cites W1913723147 @default.
- W2036699952 cites W1966706677 @default.
- W2036699952 cites W1974106745 @default.
- W2036699952 cites W1974463772 @default.
- W2036699952 cites W1976831807 @default.
- W2036699952 cites W1977860453 @default.
- W2036699952 cites W1987614422 @default.
- W2036699952 cites W1998091511 @default.
- W2036699952 cites W2001795898 @default.
- W2036699952 cites W2003593894 @default.
- W2036699952 cites W2005113904 @default.
- W2036699952 cites W2012710893 @default.
- W2036699952 cites W2015183711 @default.
- W2036699952 cites W2027833512 @default.
- W2036699952 cites W2033272151 @default.
- W2036699952 cites W2035971911 @default.
- W2036699952 cites W2042155824 @default.
- W2036699952 cites W2042419096 @default.
- W2036699952 cites W2043396483 @default.
- W2036699952 cites W2049521693 @default.
- W2036699952 cites W2055184276 @default.
- W2036699952 cites W2064387750 @default.
- W2036699952 cites W2065444789 @default.
- W2036699952 cites W2068124694 @default.
- W2036699952 cites W2072103796 @default.
- W2036699952 cites W2077911419 @default.
- W2036699952 cites W2084330742 @default.
- W2036699952 cites W2086273837 @default.
- W2036699952 cites W2095461768 @default.
- W2036699952 cites W2096932694 @default.
- W2036699952 cites W2102577298 @default.
- W2036699952 cites W2104373491 @default.
- W2036699952 cites W2105500381 @default.
- W2036699952 cites W2121206386 @default.
- W2036699952 cites W2126749305 @default.
- W2036699952 cites W2129938127 @default.
- W2036699952 cites W2131079339 @default.
- W2036699952 cites W2131243830 @default.
- W2036699952 cites W2134812217 @default.
- W2036699952 cites W2136449652 @default.
- W2036699952 cites W2137258915 @default.
- W2036699952 cites W2145333614 @default.
- W2036699952 cites W2157803226 @default.
- W2036699952 cites W2255395527 @default.
- W2036699952 cites W2286325638 @default.
- W2036699952 cites W2319736817 @default.
- W2036699952 cites W2400319432 @default.
- W2036699952 cites W2409331082 @default.
- W2036699952 cites W2413224675 @default.
- W2036699952 cites W2434091837 @default.
- W2036699952 cites W27403974 @default.
- W2036699952 cites W4235744390 @default.
- W2036699952 cites W4294216491 @default.
- W2036699952 cites W98131353 @default.
- W2036699952 doi "https://doi.org/10.1016/s0002-9440(10)61773-7" @default.
- W2036699952 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/1850470" @default.
- W2036699952 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/11549590" @default.
- W2036699952 hasPublicationYear "2001" @default.
- W2036699952 type Work @default.
- W2036699952 sameAs 2036699952 @default.
- W2036699952 citedByCount "92" @default.
- W2036699952 countsByYear W20366999522012 @default.
- W2036699952 countsByYear W20366999522013 @default.
- W2036699952 countsByYear W20366999522014 @default.
- W2036699952 countsByYear W20366999522015 @default.
- W2036699952 countsByYear W20366999522017 @default.
- W2036699952 countsByYear W20366999522020 @default.
- W2036699952 countsByYear W20366999522021 @default.
- W2036699952 countsByYear W20366999522022 @default.
- W2036699952 crossrefType "journal-article" @default.
- W2036699952 hasAuthorship W2036699952A5000516339 @default.
- W2036699952 hasAuthorship W2036699952A5000644268 @default.
- W2036699952 hasAuthorship W2036699952A5021731198 @default.
- W2036699952 hasAuthorship W2036699952A5041173950 @default.
- W2036699952 hasAuthorship W2036699952A5048969184 @default.
- W2036699952 hasAuthorship W2036699952A5056821715 @default.