Abstract
The repair of bone tumors is an urgent problem to be solved in clinical treatment. In this study, nano-hydroxyapatite (nHA), polydopamine (PDA) and carboxymethyl chitosan (CMCS) composite scaffolds loaded with stromal cell-derived factor-1α (SDF-1α) and calcitonin gene-related peptide (CGRP) were constructed by 3D printing. It was found that the chemotaxis of nHA/PDA/CMCS scaffold loaded with SDF-1α/CGRP factors to rat periosteal-derived stem cells (rPDSCs) was fivefold higher than that without factors loading, and the constructed scaffold had good biocompatibility and promoted the reactivation of bone inactivated by microwave thermal ablation.
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