scholarly journals Chondrogenic differentiation of human mesenchymal stem cell aggregates via controlled release of TGF-β1 from incorporated polymer microspheres

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Vol 9999A ◽  
pp. NA-NA ◽  
Author(s):  
Loran D. Solorio ◽  
Andrew S. Fu ◽  
Roberto Hernández-Irizarry ◽  
Eben Alsberg
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2013 ◽  
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pp. 025009 ◽  
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2019 ◽  
Vol 18 ◽  
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Jing-Yu Zhao ◽  
Jia-Jia Xu ◽  
Jing Li ◽  
Yi-Fu Zhuang ◽  
...  

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Samuel Herberg ◽  
Daniel Varghai ◽  
Daniel S. Alt ◽  
Phuong N. Dang ◽  
Honghyun Park ◽  
...  

AbstractBiomimetic bone tissue engineering strategies partially recapitulate development. We recently showed functional restoration of femoral defects using scaffold-free human mesenchymal stem cell (hMSC) condensates featuring localized morphogen presentation with delayed in vivo mechanical loading. Possible effects of construct geometry on healing outcome remain unclear. Here, we hypothesized that localized presentation of transforming growth factor (TGF)-β1 and bone morphogenetic protein (BMP)-2 to engineered hMSC tubes mimicking femoral diaphyses induces endochondral ossification, and that TGF-β1 + BMP-2-presenting hMSC tubes enhance defect healing with delayed in vivo loading vs. loosely packed hMSC sheets. Localized morphogen presentation stimulated chondrogenic priming/endochondral differentiation in vitro. Subcutaneously, hMSC tubes formed cartilage templates that underwent bony remodeling. Orthotopically, hMSC tubes stimulated more robust endochondral defect healing vs. hMSC sheets. Tissue resembling normal growth plate was observed with negligible ectopic bone. This study demonstrates interactions between hMSC condensation geometry, morphogen bioavailability, and mechanical cues to recapitulate development for biomimetic bone tissue engineering.


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