Abstract
Craniofacial bone defects cause significant problems to patients with harmful consequences. Mesenchymal stem cells (MSCs) can self-renew and exhibit multilineage differentiation, which could be applied to bone regeneration. However, craniofacial bone tissue MSCs have unique properties, differing in their characteristics to MSCs derived from long bones. CDC20 promotes osteogenic differentiation in long bones; however, its role in craniofacial bone tissues remains unknown. In this study, we found that Cdc20 conditional knockout in mice triggered distinctive cranial and mandibular bone loss. Moreover, the osteogenic differentiation potential of cranial suture-derived MSCs and mandibular bone marrow-derived MSCs was impaired in Cdc20 conditional knockout mice. The conditional knockout of Cdc20 impaired osteogenesis in craniofacial bones. Our findings provide new insights into craniofacial bone regeneration and the treatments of craniofacial bone-related diseases.
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