Surface Hydrophobicity Modulates the Key Characteristics of Cancer Spheroids through the Interaction with the Adsorbed Proteins

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Three-dimensional in vitro cancer models have emerged as a promising tool for various cancer-related applications. However, the limited availability of the in vitro model capable of adequately recapitulating the active interactions between the cancer cells and the surrounding tumor microenvironment (TME) hampers their use for therapeutic applications. Here, it is demonstrated that the proteins adsorbed on the culture substrate significantly influence the characteristics of the cancer cells, thereby suggesting that the modulation of cell-protein interaction can be a powerful tool to construct an advanced cancer model. A series of polymers are prepared for the precise control of the surface hydrophobicity of the culture plate. Cancer cells cultured on the polymers exhibit distinct morphological transitions ranging from monolayer to spheroids with entirely different characteristics depending on the surface hydrophobicity. The poly (cyclohexyl methacrylate) surface of the highest hydrophobicity tested in this study strongly attracts albumin from the media for enhanced adsorption and induces conformational changes in albumin upon binding, leading to the formation of spheroid with the most enriched tumorigenic properties. It is believed that this finding can provide new insights when selecting the experimental strategy to appropriately mimic the complex interplay between the cancer cells and the TME.
Publisher
WILEY-V C H VERLAG GMBH
Issue Date
2021-08
Language
English
Article Type
Article
Citation

ADVANCED FUNCTIONAL MATERIALS, v.31, no.31, pp.2100775

ISSN
1616-301X
DOI
10.1002/adfm.202100775
URI
http://hdl.handle.net/10203/287165
Appears in Collection
ME-Journal Papers(저널논문)CBE-Journal Papers(저널논문)
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