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- W1970920307 abstract "Interaction of cell integrins with the ECM (extracellular matrix) proteins is commonly assumed to be associated with cell dissemination and tumour metastases. Since these processes depend on the mechanism of cell—protein interaction, we have attempted to show the contribution of α5β1 and αvβ3 integrins of the prostate cancer PC-3 cells in in vitro interaction with FN (fibronectin) adsorbed on defined polystyrene surfaces. Cell adhesion, spreading and cytoskeleton organization were studied using antibodies against integrins or a GRGDSP (Gly-Arg-Gly-Asp-Ser-Pro) peptide. The results show that blocking the α5β1 integrin causes: (i) a decrease in the number of the adherent cells in the early phase of adhesion and (ii) a decrease in the dynamics of cell spreading and cell shape changes, and weaker reorganization of cytoskeletal proteins than in the control cells. Conversely, the blocking of the αvβ3 integrin: (i) causes no observable effect on the number of the adhered cells; however, (ii) causes an increase in the dynamics of cell spreading and cell shape changes, and stronger reorganization of cytoskeletal proteins than in the control cells. Interestingly, the blocking of integrins with a GRGDSP peptide strongly decreases the number of the adhered cells, and a complete inhibition of cell spreading. Our results strongly suggest that the α5β1 integrin plays the main role in the adhesion and spreading of PC-3 cells interacting with FN, whereas the αvβ3 integrin seems to regulate other receptors in the spreading process. Moreover, integrin—FN interaction through the RGD sequence evidently curbed the cell adhesion and spreading." @default.
- W1970920307 created "2016-06-24" @default.
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- W1970920307 date "2012-08-09" @default.
- W1970920307 modified "2023-10-03" @default.
- W1970920307 title "Role of α5β1 and αvβ3 integrins in relation to adhesion and spreading dynamics of prostate cancer cells interacting with fibronectin under<i>in vitro</i>conditions" @default.
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- W1970920307 doi "https://doi.org/10.1042/cbi20110522" @default.
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