相关实验视频
Updated: May 30, 2025
10:01
Microfluidic Model to Mimic Initial Event of Neovascularization
Published on: April 10, 2021
4.6K
细胞通过微流体芯片中的互白素-6依赖机制促进更多的血管化,而不是 stromal 细胞
Julian Gonzalez-Rubio1, Hannah Kubiza1, Yong Xu1
1Department of Biohybrid & Medical Textiles (BioTex), AME - Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Forckenbeckstrasse 55, 52074, Aachen, Germany.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|January 31, 2025
概括
细胞增强了血管形成,主要是通过介质蛋白-6 (IL-6) 增强了血管形成. 这澄清了血管化和组织工程中的细胞作用.
科学领域:
- 血管生物学 血管生物学
- 细胞生物学 细胞生物学
- 组织工程是组织工程.
背景情况:
- 细胞对于血管化和内皮细胞支持至关重要.
- 精确的细胞体的身份和功能,特别是与介质细胞 stromal 细胞的关系,仍在争论中.
- 了解围细胞-内皮细胞相互作用对于再生医学至关重要.
研究的目的:
- 为了比较皮质细胞的血管化潜力与未被选择的树皮细胞.
- 阐明围细胞介导血管化背后的分子机制.
- 研究介质细胞在血管发育中的作用.
主要方法:
- 使用多通道微流体芯片进行共同培养实验.
- 在共同培养的细胞上进行全转录组测序.
- 量化了细胞因子水平,并使用抗体阻断剂 (西尔图西马布) 来评估IL-6功能.
主要成果:
- 与树皮细胞相比,细胞显著促进了血管生成和血管生成.
- 转录组分析揭示了不同的基因表达特征,皮质细胞调高了亲血管化基因和树皮细胞,显示代谢增加和炎症减少.
- 细胞衍生因素,特别是IL-6,被确定为增强血管生成的关键媒介.
结论:
- 细胞作为强大的壁画细胞,驱动血管网络的形成,比树皮细胞更有效.
- 洲际蛋白-6 (IL-6) 是危细胞驱动的亲血管化的关键调解者.
- 这些发现提供了对细胞体身份的新见解,并对血管生物学和组织工程应用有意义.
相关概念视频
01:24Regulation of Angiogenesis and Blood Supply
2.5K
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...
2.5K
01:10Mechanism of Angiogenesis
5.2K
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...
5.2K