表观遗传学和神经元分化的时间
Andrew I Aldridge1, Anne E West1
1Duke University School of Medicine, Department of Neurobiology, Durham, NC 27710, USA.
Current opinion in neurobiology
|September 15, 2024
概括
表观遗传调节通过改变色素格局来引导大脑细胞的发育. 这些过程中出现的干扰会影响神经发生的时间和大脑的组成.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 发展生物学 发展生物学
背景情况:
- 细胞类型的分化依赖于表观遗传基因组调节.
- 专门的脑细胞类型来自复杂的发育过程.
- 染色体格局的变化对于神经发育至关重要.
研究的目的:
- 审查表观遗传调节在大脑发育中的作用.
- 讨论染色体的变化如何调节神经发生和神经元成熟.
- 探索染色体调节器突变对大脑发育的影响.
主要方法:
- 关于神经发育中的染色体调节现有文献的综述.
- 在神经前体和神经元发育过程中对基因表达程序的分析.
- 检查影响染色体调节者的疾病相关突变.
主要成果:
- 渐进的染色体格局变化指导神经发生和神经元成熟的基因表达.
- 染色体调节者的突变可以破坏神经发生的时间,改变大脑的组成.
- 染色体修饰与染色体结构集成,以协调发育转录程序.
结论:
- 表观遗传机制对于精确的时间控制大脑发育至关重要.
- 了解这些机制对于解决由染色体调节器功能障碍引起的神经发育障碍至关重要.
- 进一步研究染色体结构在协调发育转录中的作用是有必要的.
相关概念视频
01:51Determination
18.3K
During embryogenesis, cells become progressively committed to different fates through a two-step process: specification followed by determination. Specification is demonstrated by removing a segment of an early embryo, “neutrally” culturing the tissue in vitro—for example, in a petri dish with simple medium—and then observing the derivatives. If the cultured region gives rise to cell types that it would normally generate in the embryo, this means that it is specified. In...
18.3K
00:57Cellular Differentiation
2.6K
How does a complex organism such as a human develop from a single cell? It all starts from a single fertilized egg which gives rise to a vast array of cell types, such as nerve cells, muscle cells, and epithelial cells that characterize the adult? Throughout development and adulthood, cellular differentiation leads cells to assume their final morphology and physiology. Differentiation is the process by which unspecialized cells become specialized to carry out distinct functions.
A zygote is a...
A zygote is a...
2.6K