通过口腔干细胞揭示神经退行性变化
M Tatullo1,2, T Cocco1, A Ferretta1
1Department of Translational Biomedicine and Neuroscience, University of Bari "Aldo Moro," Bari, Italy.
Journal of dental research
|September 14, 2024
概括
人体口腔干细胞,包括周周囊介质干细胞 (hPCy-MSCs) 和牙髓干细胞 (DPSCs),可以分化为功能性多巴胺基神经元. 这些细胞还可以形成3D中脑器官,为帕金森病提供新的模型.
科学领域:
- 神经科学是一个神经科学.
- 干细胞生物学 干细胞生物学
- 再生医学是一种再生医学.
背景情况:
- 帕金森病 (PD) 涉及中脑多巴胺基 (DAergic) 神经元的损失.
- 替换这些神经元或增强神经黑色素 (NM) 可以治疗PD.
- 口腔干细胞提供了一个神经再生的潜在来源.
研究的目的:
- 为了比较人类周周囊介质干细胞 (hPCy-MSCs) 和牙纤维干细胞 (DPSCs) 的DAergic神经元分化.
- 为了在体外产生功能性的3D中脑类器官.
- 评估口腔干细胞在帕金森病建模和治疗中的潜力.
主要方法:
- 评估了hPCy-MSCs和DPSCs在神经元样细胞 (NLC) 的分化.
- 评估了DAergic神经元标记物,电活动和多巴胺产生的NLC.
- 从口腔干细胞生成和表征3D中脑样器官.
主要成果:
- 无论是hPCy-MSC还是DPSC都分化为NLC,通过乳酸的增加得到证实.
- NLCs进一步分化为功能性,DAergic,NM产生神经元.
- 成功生成了3D中脑类器官,表达神经标记物和NM类颗粒.
结论:
- 口腔干细胞可以分化为功能DAergic神经元.
- 来自口腔干细胞的3D中脑器官提供了一个新的疾病模型.
- 这些发现凸显了口腔干细胞作为帕金森病研究的宝贵工具.
相关概念视频
Neurogenesis and Regeneration of Nervous Tissue
742
In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
742
Stem Cell Niche
5.0K
The stem cell niche is the dynamic microenvironment where stem cells reside. Inside these niches, the cells may remain undifferentiated, undergo high self-renewal, or become lineage-specific progenitors. Stem cells coexist with other niche cells, such as stromal cells. They also interact closely with the ECM. Cell-cell and cell-matrix communication occur via adhesion molecules or soluble factors that signal the stem cells and determine their fate. Stromal cells also provide survival signals to...
5.0K


