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Updated: Sep 18, 2025

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Hippo-YAP/β-catenin信号轴协调牙肉干细胞中的odontogenic分化:对牙肉再生的影响
Chang Chen1, Qiqi Yun1, Juanli Ran1
1Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
PloS one
|June 26, 2025
概括
协调的Hippo-YAP和β-catenin信号通路促进人类牙髓干细胞 (DPSC) 的分化,以再生牙. 这种相互作用对于增强细胞功能和牙致病标志物表达至关重要.
科学领域:
- 干细胞生物学 干细胞生物学
- 分子信号通道的分子信号通道.
- 再生医学是一种再生医学.
背景情况:
- 人类牙纸干细胞 (DPSCs) 对于牙纸再生至关重要.
- 希波-YAP和β-catenin信号通路在细胞命运决定中发挥作用.
- 了解它们的相互作用是推动再生疗法的关键.
研究的目的:
- 为了研究Hippo-YAP和β-catenin信号在DPSC的牙分化中的相互作用.
- 探索这种信号轴在牙-肉再生中的治疗潜力.
主要方法:
- 在DPSC中利用了lentivirus用于YAP操纵和siRNA用于β-catenin敲击.
- 评估了DPSC的扩散,迁移和矿化.
- 通过qRT-PCR和免疫光学分析了牙和Wnt通路标记物.
- 通过体内皮下移植模型验证的结果.
主要成果:
- YAP的激活显著提高了DPSC的扩散,迁移,入侵和差异化.
- 观察到臭性标记物 (RUNX2,DSPP,DMP1) 和Wnt通路组件的升级.
- 在分化过程中确认了协调YAP和β-catenin表达模式.
- β-catenin沉默或Wnt抑制取消了YAP诱导的效果,并抑制了YAP的表达.
- 在体内研究表明,YAP过度表达增强了牙特异性标记物和β-catenin.
结论:
- 协调的YAP和β-catenin信号是DPSC口腔形成的重要驱动因素.
- 这种相互作用对牙再生策略具有重大前景.
- 显然,YAP和β-catenin之间的相互调节是显而易见的,因此需要进一步研究直接的分子相互作用.
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