A novel strategy for bone defect repair: Stromal cell-derived factor 1α sustained-release acellular fish scale scaffolds combined with injection of bone marrow mesenchymal stem cells promote bone regeneration.

ABSTRACT: Patients with bone defects often have weak cell vitality and differentiation ability of endogenous bone marrow mesenchymal stem cells (BMSCs), which makes bone regeneration face challenges. At present, the bone tissue engineering strategies are mainly to build grafts by loading cells on scaffolds in vitro. These strategies face many difficulties that limit their clinical application. To this end, we developed a new strategy for bone defect repair, namely chemotactic cell-free scaffolds combined with BMSCs injection. We first prepared a polydopamine-functionalized acellular fish scale scaffold that can continuously release stromal cell-derived factor 1α (SDF-1α) (termed as SDF-1α/PAFS) in vivo for at least 10 days. The study results showed that the scaffold not only has excellent mechanical

SUBMITTER: Su S 

PROVIDER: S-EPMC12017916 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature