Indexed by:
Abstract:
Scarless wound healing represents a formidable clinical challenge, primarily due to the complex pathophysiology of scar formation and the limited availability of therapeutic strategies. Here, we developed an injectable dynamic hydrogel co-loaded with adipose-derived mesenchymal stem cells (ADMSCs) and verteporfin (VP) for enhanced scarless wound healing. The hydrogel matrix was prepared through dopamine-grafted oxidation of hyaluronic acid and carbohydrazide-modified gelatin via Schiff base reaction and catechol-mediated chemical bondings, exhibiting good injectability and self-healing properties. Moreover, the dynamic reversible cross-linked network of hydrogels mimics extracellular matrix conditions to provide an adaptable microenvironment for ADMSCs. Additionally, the encapsulated ADMSCs exert angiogenesis and wound closure effects by releasing various cytokines during the early stage of wound healing, while secreting antifibrotic factors to reduce scar formation in later stages. Notably, the sustained release of VP from the hydrogel matrix effectively inhibits scar formation through Yes-associated protein signaling pathway modulation. In vivo evaluation using both rat full-thickness skin defect and rabbit ear hypertrophic scar models demonstrated the hydrogel's high efficacy in promoting scarless tissue regeneration. The presented multifunctional hydrogel platform, which integrates stem cells and chemical drugs, offers a promising therapeutic strategy for scarless wound repair. © 2025 The Author(s)
Keyword:
Reprint 's Address:
Email:
Source :
Materials and Design
ISSN: 0264-1275
Year: 2025
Volume: 259
7 . 6 0 0
JCR@2023
Cited Count:
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
Affiliated Colleges: