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- W4289731657 abstract "Abstract Bioengineered bone designed to heal large defects requires concomitant development of osseous and vascular tissue to ensure engraftment and survival. Adult human mesenchymal stromal cells (MSC) are promising in this application because they have demonstrated both osteogenic and vasculogenic potential. This study employed a modular approach in which cells were encapsulated in biomaterial carriers (microtissues) designed to support tissue‐specific function. Osteogenic microtissues consisting of MSC embedded in a collagen‐chitosan matrix; vasculogenic (VAS) microtissues consisted of endothelial cells and MSC in a fibrin matrix. Microtissues were precultured under differentiation conditions to induce appropriate MSC lineage commitment, and were then combined in a surrounding fibrin hydrogel to create a multimodular construct. Results demonstrated the ability of microtissues to support lineage commitment, and that preculture primes the microtissues for the desired function. Combination of osteogenic and vasculogenic microtissues into multimodular constructs demonstrated that osteogenic priming resulted in sustained osteogenic activity even when cultured in vasculogenic medium, and that vasculogenic priming induced a pericyte‐like phenotype that resulted in development of a primitive vessel network in the constructs. The modular approach allows microtissues to be separately precultured to harness the dual differentiation potential of MSC to support both bone and blood vessel formation in a unified construct." @default.
- W4289731657 created "2022-08-04" @default.
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- W4289731657 date "2022-08-12" @default.
- W4289731657 modified "2023-09-26" @default.
- W4289731657 title "Multimodular vascularized bone construct comprised of vasculogenic and osteogenic microtissues" @default.
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- W4289731657 doi "https://doi.org/10.1002/bit.28201" @default.
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