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• W2945313253 abstract "Abstract There is a need to further explore the convergence of mechanobiology and dimensionality with systematic investigations of cellular response to matrix mechanics in 2D and 3D cultures. Here, a semisynthetic hydrogel capable of supporting both 2D and 3D cell culture is applied to investigate cell response to matrix modulus and ligand density. The culture materials are fabricated from adducts of polyethylene glycol (PEG) or PluronicF127 and fibrinogen fragments, formed into hydrogels by free‐radical polymerization, and characterized by shear rheology. Control over the modulus of the materials is accomplished by changing the concentration of synthetic PEG‐diacrylate crosslinker (0.5% w/v), and by altering the molecular length of the PEG (10 and 20 kDa). Control over ligand density is accomplished by changing fibrinogen concentrations from 3 to 12 mg mL −1 . In 2D culture, cell motility parameters, including cell speed and persistence time are significantly increased with increasing modulus. In both 2D and 3D culture, cells express vinculin and there is evidence of focal adhesion formation in the high stiffness materials. The modulus‐ and ligand‐dependent morphogenesis response from the cells in 2D culture is contradictory to the same measured response in 3D culture. In 2D culture, anchorage‐dependent cells become more elongated and significantly increase their size with increasing ligand density and matrix modulus. In 3D culture, the same anchorage‐dependent cells become less spindled and significantly reduce their size in response to increasing ligand density and matrix modulus. These differences arise from dimensionality constraints, most notably the encapsulation of cells in a non‐porous hydrogel matrix. These insights underscore the importance of mechanical properties in regulating cell morphogenesis in a 3D culture milieu. The versatility of the hydrogel culture environment further highlights the significance of a modular approach when developing materials that aim to optimize the cell culture environment." @default.
• W2945313253 created "2019-05-29" @default.
• W2945313253 creator A5053162183 @default.
• W2945313253 creator A5060066912 @default.
• W2945313253 creator A5062081901 @default.
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• W2945313253 creator A5087093697 @default.
• W2945313253 date "2019-05-13" @default.
• W2945313253 modified "2023-09-23" @default.
• W2945313253 title "Fibrinogen‐Based Hydrogel Modulus and Ligand Density Effects on Cell Morphogenesis in Two‐Dimensional and Three‐Dimensional Cell Cultures" @default.
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• W2945313253 doi "https://doi.org/10.1002/adhm.201801436" @default.
• W2945313253 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31081289" @default.
• W2945313253 hasPublicationYear "2019" @default.
• W2945313253 type Work @default.
• W2945313253 sameAs 2945313253 @default.

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