Tunable Mesoscopic Collagen Island Architectures Modulate Stem Cell Behavior

© 2023 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 35(2023), 16 vom: 01. Apr., Seite e2207882
1. Verfasser: Nguyen, Ryan Y (VerfasserIn)
Weitere Verfasser: Cabral, Aidan T, Rossello-Martinez, Alejandro, Zulli, Alessandro, Gong, Xiangyu, Zhang, Qiuting, Yan, Jing, Mak, Michael
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article biomaterials cell-extracellular matrix interactions collagen tissue engineering Collagen 9007-34-5 Hydrogels
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520 |a The extracellular matrix is the biophysical environment that scaffolds mammalian cells in the body. The main constituent is collagen. In physiological tissues, collagen network topology is diverse with complex mesoscopic features. While studies have explored the roles of collagen density and stiffness, the impact of complex architectures remains not well-understood. Developing in vitro systems that recapitulate these diverse collagen architectures is critical for understanding physiologically relevant cell behaviors. Here, methods are developed to induce the formation of heterogeneous mesoscopic architectures, referred to as collagen islands, in collagen hydrogels. These island-containing gels have highly tunable inclusions and mechanical properties. Although these gels are globally soft, there is regional enrichment in the collagen concentration at the cell-scale. Collagen-island architectures are utilized to study mesenchymal stem cell behavior, and it is demonstrated that cell migration and osteogenic differentiation are altered. Finally, induced pluripotent stem cells are cultured in island-containing gels, and it is shown that the architecture is sufficient to induce mesodermal differentiation. Overall, this work highlights complex mesoscopic tissue architectures as bioactive cues in regulating cell behavior and presents a novel collagen-based hydrogel that captures these features for tissue engineering applications 
650 4 |a Journal Article 
650 4 |a biomaterials 
650 4 |a cell-extracellular matrix interactions 
650 4 |a collagen 
650 4 |a tissue engineering 
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650 7 |a 9007-34-5  |2 NLM 
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700 1 |a Cabral, Aidan T  |e verfasserin  |4 aut 
700 1 |a Rossello-Martinez, Alejandro  |e verfasserin  |4 aut 
700 1 |a Zulli, Alessandro  |e verfasserin  |4 aut 
700 1 |a Gong, Xiangyu  |e verfasserin  |4 aut 
700 1 |a Zhang, Qiuting  |e verfasserin  |4 aut 
700 1 |a Yan, Jing  |e verfasserin  |4 aut 
700 1 |a Mak, Michael  |e verfasserin  |4 aut 
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