Spatiotemporally Programming Microenvironment to Recapitulate Endochondral Ossification via Greenhouse-Inspired Bionic Niche
© 2025 Wiley‐VCH GmbH.
| Publié dans: | Advanced materials (Deerfield Beach, Fla.). - 1998. - (2025) vom: 02. Mai, Seite e2504057 |
|---|---|
| Auteur principal: | |
| Autres auteurs: | , , , , , , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2025
|
| Accès à la collection: | Advanced materials (Deerfield Beach, Fla.) |
| Sujets: | Journal Article 3D microchannel scaffolds biomineralization bone tissue engineering endochondral ossification mesoporous silica nanoparticles pseudo‐hypoxia |
| Résumé: | © 2025 Wiley‐VCH GmbH. Various biomaterials have been developed to address challenging critical-sized bone defects. However, most of them focus on intramembranous ossification (IMO) rather than endochondral ossification (ECO), often resulting in suboptimal therapeutic outcomes. Drawing inspiration from the functionality of the greenhouse ecosystem, herein a bionic niche is innovatively crafted to recapitulate the ECO process. This niche consists of three hierarchical components: an embedded microchannel network that facilitates cell infiltration and matter exchange, a polydopamine surface modification layer with immunomodulatory functions, and an ECO-targeted delivery system based on mesoporous silica nanoparticles. Through spatiotemporally programming of the microenvironment, the bionic niche effectively recapitulates the key stages of ECO. Notably, even in the rat calvaria, a region well-known for IMO, the bionic niche is capable of initiating ECO, evident by cartilage template formation, leading to efficient bone regeneration. Taken together, this study introduces prospective concepts for designing next-generation ECO-driven biomaterials for bone tissue engineering |
|---|---|
| Description: | Date Revised 03.05.2025 published: Print-Electronic Citation Status Publisher |
| ISSN: | 1521-4095 |
| DOI: | 10.1002/adma.202504057 |