阶段分离作为干细胞组织和功能在发育过程中的驱动器
Amalia S Parra1, Christopher A Johnston1
1Department of Biology, University of New Mexico, Albuquerque, NM 87131, USA.
Journal of developmental biology
|December 22, 2023
概括
液-液相分离 (LLPS) 组织了没有膜的干细胞,影响了发育. 异常的LLPS可能导致发育性疾病.
科学领域:
- 细胞生物学 细胞生物学
- 发展生物学 发展生物学
- 生物化学 生物化学
背景情况:
- 细胞组织依赖于与膜结合的细胞器官,但这并不能完全解释细胞复杂性.
- 非膜结合的结构,包括由液-液相分离 (LLPS) 形成的结构,对于细胞功能至关重要.
- LLPS是一种无处不在的细胞组织机制,在没有脂质膜的情况下运作,涉及各种蛋白质和RNA复合体.
研究的目的:
- 审查LLPS在发育过程中对干细胞组织和功能的影响.
- 详细介绍LLPS在关键发育过程中的作用,如信号传递,染色体组织,基因表达和不对称的细胞分裂.
- 探索LLPS如何促进干细胞适应性,细胞命运控制以及与发育性疾病的潜在联系.
主要方法:
- 文献综述侧重于LLPS在干细胞生物学和发育中的作用.
- 对LLPS机制现有研究的分析,包括蛋白质和RNA复合物的参与.
- 在发育信号,染色体,基因表达和细胞分裂中与LLPS相关的发现的综合.
主要成果:
- LLPS为干细胞提供了一个动态和适应性的细胞组织模式.
- 这种LLPS会影响发育信号通路,染色体组织和基因表达.
- 在不对称的细胞分裂和细胞命运决定中,LLPS起着至关重要的作用.
结论:
- 在整个发育过程中,LLPS是干细胞组织和功能的一个基本过程.
- 在LLPS的动态性质允许干细胞适应和控制细胞命运.
- LLPS的失调与发育缺陷和疾病有关.
更多相关视频
09:56Mapping the Emergent Spatial Organization of Mammalian Cells using Micropatterns and Quantitative Imaging
Published on: April 30, 2019
6.6K
11:37Generation of Aggregates of Mouse Embryonic Stem Cells that Show Symmetry Breaking, Polarization and Emergent Collective Behaviour In Vitro
Published on: November 24, 2015
17.9K
相关概念视频
02:13Determining the Plane of Cell Division
3.3K
Positioning the cell division plane is a critical step during development and cell differentiation, particularly during mitosis when the plane is essential for determining the size of the two daughter cells. The cell division plane is perpendicular to the plane of chromosome segregation, but different types of organisms have different cell division mechanisms to suit their morphology and function.
Animal cells
In animal cells, the cleavage furrow forms along the plane of cell division...
Animal cells
In animal cells, the cleavage furrow forms along the plane of cell division...
3.3K
01:10Zygotic Development And Stem Cell Formation
5.2K
The development of all multicellular organisms starts with the fusion of haploid cells called sperm and egg to form a diploid zygote. A zygote is a totipotent cell that can develop into a complete organism. The zygote undergoes cell division or cleavage to form an 8-cell mass. Until this stage, the cells are spherical, loosely attached, and remain totipotent. Totipotent cells are capable of developing both the embryonic and the extraembryonic tissues. However, as they continue to divide, they...
5.2K
01:14Maintenance of the ES Cell State
2.2K
The cells of the blastocyst inner cell mass only remain pluripotent for a short time. This state of pluripotency and self-renewal can be maintained in embryonic stem (ES) cell culture by adding specific chemicals or growth factors to ensure the cells can continue dividing and later differentiate into different cell types. In some cases, the cells are grown on a feeder layer of differentiated cells, which provides the growth factors and extracellular matrix components necessary for stem cell...
2.2K