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• W2044019708 abstract "Cells use a combination of changes in adhesion, proteolysis and motility (directed and random) during the process of migration. Proteolysis of the extracellular matrix (ECM) results in thecreation of haptotactic gradients which cells use to move in a directed fashion. The proteolytic creation of these gradients also results in the production of digested fragments of ECM. In this study we show that in the human fibrosarcoma cell line HT1080, matrix metalloproteinase–2(MMP–2)–digested fragments of fibronectin exert a chemotactic pull stronger than that of undigested fibronectin. During invasion, this gradient of ECM fragments is established in the wake of an invading cell, running counter to the direction of invasion. The resultant chemotactic pull is anti–invasive, contrary to the traditional view of the role of chemotaxis in invasion. Uncontrolled ECM degradation by high concentrations of MMP can thus result in steep gradients of ECM fragments, which run against the direction of invasion. Consequently, the invasive potential of a cell depends on MMP production in a biphasic mannerimplying that MMP inhibitors will upregulate invasion in high–MMPexpressing cells. Hence the therapeutic use of protease inhibitors against tumours expressing high levels of MMP could produce an augmentation of invasion." @default.
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• W2044019708 date "1998-12-22" @default.
• W2044019708 modified "2023-09-30" @default.
• W2044019708 title "Extracellular matrix-mediated chemotaxis can impede cell migration" @default.
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• W2044019708 doi "https://doi.org/10.1098/rspb.1998.0582" @default.
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