人牙髓干细胞(hDPSC)和乳牙牙髓干细胞(SHED)均属于间充质干细胞,具有多向分化潜能.Wnt信号通路包括经典Wnt/β-catenin信号通路和非经典Wnt信号通路,参与牙齿的生长发育过程,能促进牙损伤的修复.在炎症状态下,激活的Wnt信号通路可加快牙损伤修复,参与hDPSC的增殖与成牙本质向分化过程.在非炎症状态下,Wnt信号通路参与调控hDPSC和SHED成骨、成牙本质方向分化,抑制其成脂向分化.%Human dental pulp stem cell (hDPSC) and stem cells from human exfoliated deciduous teeth (SHED) are human mesenchymal stem cells demonstrating multipotential differentiation capabilities. The Wnt signaling pathway consists of canonical Wnt/β-catenin and noncanonical Wnt signal pathways, which are activated during tooth morphogenesis. These pathways also play key roles in the dental pulp repair process. During inflammation, an activated Wnt signal pathway plays a significant role in the process involved in the repair of a damaged tooth. This pathway also participates in hDPSC proliferation and odontoblastic differentiation. In non-inflammatory conditions, hDPSC and SHED differentiate into osteoblasts and odontoblasts, respectively, which suppress adipogenic differentiation through the Wnt signaling pathway.
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