相关实验视频
Updated: Jun 23, 2025

07:04
Genotyping of Sea Anemone during Early Development
Published on: May 13, 2019
5.5K
双丁类激酶是尼马托斯泰拉vectensis中cnidocyte发展所需的
Johanna E M Kraus1, Henriette Busengdal1, Yulia Kraus2
1Michael Sars Centre, University of Bergen, Thormøhlensgt 55, Bergen, 5006, Norway.
Neural development
|June 22, 2024
概括
研究人员使用海Nematostella vectensis研究了神经元中的微管调节. 他们发现双丁类激酶 (Dclk1) 对于发育刺痛细胞至关重要,这表明神经微管控制的早期进化.
科学领域:
- 进化发育生物学 进化发育生物学
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
背景情况:
- 神经元结构依赖于由微管相关蛋白 (MAPs) 调节微管细胞骨架.
- 一些MAP是神经元特异性的,表明神经微管子动态中的特殊作用.
- 类动物Nematostella vectensis提供了关于神经系统早期演变的见解.
研究的目的:
- 为了研究神经微管调节的早期演变.
- 为了识别和表征神经元特异的MAPs在内马托斯特拉vectensis.
- 了解双丁类激酶 (Dclk1) 在鱼神经发育中的功能.
主要方法:
- 遗传学分析以确定Dclk1的正统学.
- 转基因记者线的生成以可视化NvDclk1表达.
- 在CRISPR/Cas9基因编辑中创建NvDclk1突变.
- 显微镜检查细胞形态和蛋白质定位.
主要成果:
- NvDclk1主要表达在神经元和核细胞中,这些细胞是尼马托斯特拉神经系的细胞.
- NvDclk1定位在微管中,作为一个微管结合蛋白.
- NvDclk1突变体在核细胞成熟过程中表现出缺陷,表明其至关重要的作用.
结论:
- 这项研究提供了神经系统中微管调节程序早期演变的证据.
- 在类动物中,NvDclk1在神经系特种细胞的发展中起着至关重要的作用.
- 尼马托斯泰拉 (Nematostella vectensis) 是一个有价值的模型,用于研究神经发育的保存机制.
相关概念视频
Role Of Notch Signalling In Intestinal Stem Cell Renewal
2.1K
Notch signaling was first discovered in Drosophila melanogaster, where it is involved in cell lineage differentiation. Notch signaling regulates the maintenance and differentiation of intestinal stem cells or ISCs by controlling the expression of atonal homolog 1 or Atoh1. Atoh1 directs cells to differentiate into secretory cells.
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
2.1K
Cell Motility through Blebbing
1.9K
Blebs are a type of membrane protrusion formed by the internal hydrostatic pressure of the cytoplasm. Blebs are observed in several cell types, including fibroblasts, immune cells, and single-celled organisms like the amoeba. The primary function of blebs is cell locomotion and apoptosis, but they are also found during necrosis and cell division. The life cycle of a bleb comprises an initiation phase followed by the expansion and retraction phases.
Blebbing Through the Matrix
In multicellular...
Blebbing Through the Matrix
In multicellular...
1.9K
Notch Signaling Pathway
4.2K
The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not...
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not...
4.2K
Catenins
2.3K
Catenins are characterized by multiple binding domains and dynamic structures that allow them to function as linker proteins in cell junction complexes. All catenins, except α-catenin, contain a characteristic protein sequence called the armadillo repeat and are therefore also called armadillo proteins.
Catenins in Cell Junctions
Catenins bind to cell adhesion molecules such as cadherins and link them to different cytoskeletal proteins depending on the type of cell junction. At the...
Catenins in Cell Junctions
Catenins bind to cell adhesion molecules such as cadherins and link them to different cytoskeletal proteins depending on the type of cell junction. At the...
2.3K
Microtubules in Signaling
1.7K
The primary cilium, made up of microtubules, acts as antennae on the cell surfaces for relaying external stimuli into the cells. These fine hair-like structures are present, generally one per cell. These are non-motile cilia in a 9+0 microtubules arrangement, where the central pair of microtubules are absent. The primary cilia arise from the basal body embedded in the cell membrane. Intraflagellar transport (IFT) carries requisite proteins from the cytoplasm to the cilium because the primary...
1.7K
Role of Septins
1.7K
Septins are the recently discovered fourth major protein component of the cytoskeleton, along with microfilaments, microtubules, and intermediate filaments. These proteins can associate with other cytoskeletal filaments and carry out varied roles or can be free-floating in the cytoplasm.
Cellular Functions of Septins
Recent studies have revealed the multifaceted roles of septins in various cellular processes such as cytokinesis, ciliogenesis, and neurogenesis. Septins act as scaffolds and...
Cellular Functions of Septins
Recent studies have revealed the multifaceted roles of septins in various cellular processes such as cytokinesis, ciliogenesis, and neurogenesis. Septins act as scaffolds and...
1.7K

