Dynamic Stiffening Hydrogel with Instructive Stiffening Timing Modulates Stem Cell Fate In Vitro and Enhances Bone Remodeling In Vivo
© 2023 Wiley-VCH GmbH..
Biomechanical stimuli derived from the extracellular matrix (ECM) extremely tune stem cell fate through 3D and spatiotemporal changes in vivo. The matrix stiffness is a crucial factor during bone tissue development. However, most in vitro models to study the osteogenesis of mesenchymal stem cells (MSCs) are static or stiffening in a 2D environment. Here, a dynamic and controllable stiffening 3D biomimetic model is created to regulate the osteogenic differentiation of MSCs with a dual-functional gelatin macromer that can generate a double-network hydrogel by sequential enzymatic and light-triggered crosslinking reactions. The findings show that these dynamic hydrogels allowed cells to spread and expand prior to the secondary crosslinking and to sense high stiffness after stiffening. The MSCs in the dynamic hydrogels, especially the hydrogel stiffened at the late period, present significantly elevated osteogenic ECM secretion, gene expression, and nuclear localization of Yes-associated protein (YAP) and transcriptional coactivator with PDZ-binding motif (TAZ). In vivo evaluation of animal experiments further indicates that the enhancement of dynamic stiffening on osteogenesis of MSCs substantially promotes bone remodeling. Consequently, this work reveals that the 3D dynamic stiffening microenvironment as a critical biophysical cue not only mediates the stem cell fate in vitro, but also augments bone restoration in vivo.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:12 |
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| Enthalten in: |
Advanced healthcare materials - 12(2023), 29 vom: 29. Nov., Seite e2300326 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Li, Xiaomeng [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 23.11.2023 Date Revised 06.12.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1002/adhm.202300326 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Biomechanical stimuli derived from the extracellular matrix (ECM) extremely tune stem cell fate through 3D and spatiotemporal changes in vivo. The matrix stiffness is a crucial factor during bone tissue development. However, most in vitro models to study the osteogenesis of mesenchymal stem cells (MSCs) are static or stiffening in a 2D environment. Here, a dynamic and controllable stiffening 3D biomimetic model is created to regulate the osteogenic differentiation of MSCs with a dual-functional gelatin macromer that can generate a double-network hydrogel by sequential enzymatic and light-triggered crosslinking reactions. The findings show that these dynamic hydrogels allowed cells to spread and expand prior to the secondary crosslinking and to sense high stiffness after stiffening. The MSCs in the dynamic hydrogels, especially the hydrogel stiffened at the late period, present significantly elevated osteogenic ECM secretion, gene expression, and nuclear localization of Yes-associated protein (YAP) and transcriptional coactivator with PDZ-binding motif (TAZ). In vivo evaluation of animal experiments further indicates that the enhancement of dynamic stiffening on osteogenesis of MSCs substantially promotes bone remodeling. Consequently, this work reveals that the 3D dynamic stiffening microenvironment as a critical biophysical cue not only mediates the stem cell fate in vitro, but also augments bone restoration in vivo | ||
| 650 | 4 | |a Journal Article | |
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| 650 | 4 | |a controllable stiffening timing | |
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| 650 | 4 | |a dynamic stiffening | |
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| 700 | 1 | |a Liu, Shuaibing |e verfasserin |4 aut | |
| 700 | 1 | |a Han, Shanshan |e verfasserin |4 aut | |
| 700 | 1 | |a Sun, Qingqing |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Jianmin |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Yuhang |e verfasserin |4 aut | |
| 700 | 1 | |a Jiang, Yongchao |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Xiaofeng |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Qian |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Jianglin |e verfasserin |4 aut | |
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