神经细胞的发展和自发的神经活动在工程脑状结构中进行移植
Ke Gai1, Mengliu Yang2, Wei Chen1
1Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China.
Advanced healthcare materials
|September 10, 2024
概括
这项研究使用仿生材料系统开发了3D打印的神经祖细胞结构. 这些结构显示了针对神经系统疾病的个性化干细胞疗法的潜力.
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.
- 神经科学是一个神经科学.
背景情况:
- 干细胞移植对神经系统疾病有前途,但面临着诸如细胞分布不良和瘤风险等挑战.
- 目前的细胞悬浮疗法在控制细胞命运和解决空间缺陷方面存在局限性.
研究的目的:
- 为神经前代细胞开发一个3D打印的仿生材料系统.
- 克服当前神经系统疾病干细胞疗法的局限性.
- 创建具有受控细胞分布和治愈空间缺陷的能力的结构.
主要方法:
- 设计了一个由凝,酸盐和纤维素原组成的仿生材料系统.
- 神经前代细胞被封装在物质系统中.
- 使用3D打印技术制造了充满细胞的结构.
主要成果:
- 由此产生的结构在体外显示出出色的可塑性,稳定性和发育功能.
- 在体内研究显示出良好的生物相容性和集成到海马.
- 该系统为细胞结构提供了可控性和可重复性.
结论:
- 开发的3D打印的神经原生细胞结构具有针对个性化的干细胞治疗的巨大潜力.
- 这项技术可以推进神经疾病治疗,神经发育研究和疾病建模.
- 这些结构为有机体衍生智能系统提供了一个有前途的平台.
更多相关视频
08:52Three-dimensional Tissue Engineered Aligned Astrocyte Networks to Recapitulate Developmental Mechanisms and Facilitate Nervous System Regeneration
Published on: January 10, 2018
14.3K
15:00Intraventricular Transplantation of Engineered Neuronal Precursors for In Vivo Neuroarchitecture Studies
Published on: May 11, 2019
5.7K
相关概念视频
01:15Neurogenesis and Regeneration of Nervous Tissue
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...
01:01Neuroplasticity
Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.