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- W2092147875 abstract "Uncontrolled cell proliferation of a solid tumor in a confined space not only creates oxidative stress (hypoxia), but also generates mechanical compressive stress, which can influence the tumor cells and modify their interactions with neighboring cells and the extracellular matrix. Little is known about how such compressive stress affects cancer progression. Here we show, for the first time, that externally-applied compressive stress results in faster migration of mammary carcinoma cells. Compression induces migration of mammary carcinoma cells in a coordinated sheet, initiated by “leader cells” - single cells at the leading edge of the sheet, extending long filopodia. The formation of leader cells is dependent on the geometry of association with neighboring cells, but the frequency of leader-cell formation - and sheet migration speed - is increased by applying compression perpendicular to the sheet. Accompanied by redistribution of fibronectin deposition, applied compression enhances cell-matrix adhesion and stabilizes cell distension independent of actomyosin contractile machinery. Our results suggest that mechanical stress accumulated during tumor growth is sufficient to enhance cell-substrate adhesion and stimulate cancer cell migration. This mechanism opens the door to a new class of targets for blocking mechanical stress pathways. Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 101st Annual Meeting of the American Association for Cancer Research; 2010 Apr 17-21; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2010;70(8 Suppl):Abstract nr 4811." @default.
- W2092147875 created "2016-06-24" @default.
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- W2092147875 date "2010-04-15" @default.
- W2092147875 modified "2023-09-27" @default.
- W2092147875 title "Abstract 4811: Compression-induced cell distension stimulates coordinated migration of mammary carcinoma cells" @default.
- W2092147875 doi "https://doi.org/10.1158/1538-7445.am10-4811" @default.
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