牙真菌干细胞和内皮细胞之间的ATP1A1驱动的细胞间接触增强了血管活动
Mingqi Zhu1, Shan Jiang2, Chengfei Zhang3
1Nanfang Hospital, Southern Medical University, Guangzhou, China; School of Stomatology, Southern Medical University, Guangzhou, China.
International dental journal
|July 8, 2025
概括
牙髓干细胞 (DPSC) 和血管内皮细胞 (EC) 之间的直接接触稳定了新的血管. 这个过程涉及ATP1A1,促进平滑肌肉细胞的分化,以再生纤维组织.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 细胞生物学 细胞生物学
背景情况:
- 牙纸干细胞 (DPSC) 和血管内皮细胞 (EC) 的相互作用对于纸组织再生中的血管化至关重要.
- α1-Na+/K+-ATPase (ATP1A1) 在DPSC-EC通信和血管形成中的作用尚不清楚.
- ATP1A1对瘤血管生成的影响表明,ATP1A1可能在组织血管化中发挥作用.
研究的目的:
- 研究ATP1A1在DPSC-EC相互作用和血管网络形成中的作用.
- 阐明ATP1A1在调节血管化的基础机制.
- 为了探索ATP1A1对平滑肌肉细胞分化的影响,在纸组织工程中.
主要方法:
- 在直接和间接的共同培养系统中对容器结构形成的比较分析.
- 评估危细胞样标记物,Na+/K+-ATPase基因和蛋白质.
- 为ATP1A1定位进行免疫光染色.
- 在共同培养条件下分析信号通路 (Src/AKT) 和蛋白质表达 (FGF-2,activin A).
- 在ATP1A1抑制后对下游信号的研究.
主要成果:
- DPSC和EC的直接共同培养加速并稳定了船舶网络的形成.
- 在直接的共同培养中,ATP1A1表达和α-SMA水平显著增加,在细胞接触部位进行丰富.
- 激活了Src/AKT通路,FGF-2/activin A分泌得到了上调.
- 抑制ATP1A1降低了α-SMA表达,阻碍了光滑肌肉细胞的分化.
结论:
- 直接DPSC-EC接触通过ATP1A1介导的Src/AKT激活稳定了血管网络.
- ATP1A1驱动FGF-2/activin A的分泌,并促进平滑肌肉细胞的分化,这对于脉血管生成至关重要.
- ATP1A1对于细胞状转变和优化脉再生中的血管微环境至关重要.
- 这些发现为纸组织再生和恢复牙活力的策略提供了信息.
更多相关视频
14:52Isolation, Characterization and Comparative Differentiation of Human Dental Pulp Stem Cells Derived from Permanent Teeth by Using Two Different Methods
Published on: November 24, 2012
26.7K
09:30Mesenchymal Stem Cell Isolation from Pulp Tissue and Co-Culture with Cancer Cells to Study Their Interactions
Published on: January 7, 2019
10.5K
相关概念视频
Regulation of Angiogenesis and Blood Supply
2.7K
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
2.7K
Mechanism of Angiogenesis
5.9K
Blood vessel formation starts early during embryonic development, around day 7. In the extraembryonic yolk sac, mesodermal precursor cells called hemangioblast proliferate and differentiate into angioblast. Angioblasts express vascular endothelial growth factor receptor 2 or VEGFR2, which binds VEGF-A, a proangiogenic factor, guiding blood vessel formation. VEGF signaling promotes angioblasts to form a blood island in the developing embryo. Angioblasts further differentiate, giving rise to...
5.9K
