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- W1503710420 abstract "Background: Cancer research focuses increasingly on cancer stem cell study as those cells are thought to be the root of chemo and radioresistance of the most aggressive cancer types. Nevertheless, two-dimensional (2D) cell culture and even three-dimensional (3D) spheroid models, with their limited ability to reflect cell-extracellular matrix interactions, are not ideal for the study of cancer stem cells (CSCs). In this study, we establish a 3D in vitro cancer model using a synthetic and natural scaffold with tunable features and show that U87 cells cultured in this system acquire a stem-cell like phenotype. Methods: U87 astrocytoma cells were grown on polycaprolactone (PCL)−2D flat substrates (2D) and PCL-3D scaffolds (3D) eventually containing hyaluronic acid (3D-HA). Cell viability, growth patterns, morphology, and cell surface marker expression (CD44, RHAMM and CD133) were studied to assess the effect of 3D culture and presence of HA. Results: 3D scaffold, but most prominently presence of HA induced changes in cell morphology and marker expression; 3D-HA cultures showed features of aggregates; moreover, markedly increased expression of Nestin, CD44, RHAMM, and CD133 in 3D-HA scaffolds were found. Conclusions: the behavior of U87 in our 3D-HA model is more similar to tumor growth in vivo and a stem-like phenotype is promoted. Thus, the 3D-HA scaffold could provide a useful model for CSCs study and anti-cancer therapeutics research in vitro and may have preclinical application for the screening of drug candidates. © 2014 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 103B: 1249–1257, 2015." @default.
- W1503710420 created "2016-06-24" @default.
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- W1503710420 date "2014-10-28" @default.
- W1503710420 modified "2023-10-10" @default.
- W1503710420 title "Three-dimensional constructs using hyaluronan cell carrier as a tool for the study of cancer stem cells" @default.
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- W1503710420 doi "https://doi.org/10.1002/jbm.b.33304" @default.
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