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牙介质干细胞的上皮分化增强了全厚皮肤伤口愈合的重新上皮分化

Yongzheng Li¹, Lingling Dong¹, Yani Chen¹

¹Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310000, China.

Stem cell research & therapy

|November 28, 2024

概括

牙组织衍生的介质干细胞 (GMSCs) 可以分化成类似上皮细胞的细胞. 这种GMSCs的上皮分化通过改善再上皮化来增强皮肤伤口愈合.

科学领域:

干细胞生物学干细胞生物学
再生医学是一种再生医学.
皮肤病学皮肤病学

背景情况:

已知介质干细胞 (MSCs) 通过膜信号传递和分化进行组织修复.
在皮肤伤口愈合中,MSC上皮分化的作用在很大程度上仍未被探索.
这项研究研究了牙组织衍生MSCs (GMSCs) 的上皮分化潜力.

研究的目的:

为了确定GMSC是否可以经历表皮分化.
阐明控制GMSC上皮质分化的机制.
评估差异化GMSCs在促进伤口愈合方面的有效性.

主要方法:

GMSCs是在上皮细胞生长介质中培养的.
通过扫描电子显微镜,qPCR,西部斑点和免疫光学来评估表皮分化.
转录组测序确定了关键的信号通路.
在全厚皮肤缺陷模型中评估了伤口愈合.

主要成果:

在上皮质培养基中培养的GMSC采用了类似上皮质的形态和表达上皮质标记物 (KRT12,KRT15,KRT19,E-cadherin).
中酶体和干性标记物 (N-cadherin,Vimentin,KLF4,SOX2) 的下调.
转录组分析显示,在分化过程中抑制了Wnt和TGF-β信号通路.
抑制Wnt信号传递促进了上皮细胞的分化.
分化GMSCs (Epi-GMSCs) 在伤口模型中显著改善了重新上皮质化.

结论:

牙组织衍生的MSC具有表皮分化的能力.
抑制Wnt和TGF-β信号通路对于这种差异化至关重要.
表皮分化的GMSCs代表了增强皮肤伤口愈合的有希望的治疗策略.

关键词:

表皮分化的表皮分化.牙半细胞干细胞牙半细胞干细胞重新上皮质化的发生.没有信号发送.伤口愈合伤口愈合

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