相关实验视频

Updated: Jul 16, 2025

Analyzing Dendritic Morphology in Columns and Layers

Analyzing Dendritic Morphology in Columns and Layers

Published on: March 23, 2017

在神经元中对聚类原cadherin的跨同性相互作用的可视化

Natsumi Hoshino¹, Takashi Kanadome^2,3, Tomomi Takasugi¹

¹KOKORO-Biology Group, Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka 565-0871, Japan.

Proceedings of the National Academy of Sciences of the United States of America

|September 11, 2023

概括

科学家们使用新的Förster共振能量转移 (FRET) 探测器在神经元中可视化了聚类的protocadherin gamma B2 (PcdhγB2) 同性相互作用. 这一突破使得研究中枢神经系统中的细胞识别机制成为可能.

科学领域:

神经科学是一个神经科学.
分子生物学分子生物学
细胞生物学细胞生物学

背景情况:

集群原cadherins (Pcdhs) 对于通过同类相互作用在中枢神经系统的细胞识别至关重要.
直接在神经元中可视化这些相互作用一直是一个重大挑战.

研究的目的:

开发和验证Förster共振能量转移 (FRET) 探针,用于在培养的海马神经元中可视化PcdhγB2同性相互作用.
研究神经元结构中PcdhγB2相互作用的动态和局部.

主要方法:

单分子γB2-FRET探针的设计方法是将FRET供体和受体光蛋白融合到PcdhγB2.
这些探针在培养的海马神经元中应用.
现场成像和乙烯基醇四酸 (EGTA) 处理以分析FRET信号.

主要成果:

在培养神经元中的神经元接触点成功可视化γB2同性相互作用.
FRET信号取决于水平,由EGTA灵敏度表示.
动态成像显示移动FRET负信号和不移动FRET正信号,表明稳定的相互作用.

结论:

开发的γB2-FRET探头有效可视化神经元中的PcdhγB2同性相互作用.
PcdhγB2相互作用位于神经元接触处,与不相互作用的蛋白质相比,具有不同的动态.
这种技术为了解PCDh介导的细胞识别和神经元发育提供了强大的工具.

关键词:

费特·弗雷特 (FRET FRET) 是一家在美国的船只.聚类的原始cadherin.蛋白质蛋白质相互作用自我/非自我识别.突触突触突触是一个突触突触.

更多相关视频

Monitoring Cell-to-cell Transmission of Prion-like Protein Aggregates in Drosophila Melanogaster

Monitoring Cell-to-cell Transmission of Prion-like Protein Aggregates in Drosophila Melanogaster

Published on: March 12, 2018

Vibrodissociation of Neurons from Rodent Brain Slices to Study Synaptic Transmission and Image Presynaptic Terminals

Vibrodissociation of Neurons from Rodent Brain Slices to Study Synaptic Transmission and Image Presynaptic Terminals

Published on: May 25, 2011

相关概念视频

Structure of Cadherins

Structure of Cadherins

The cadherins were one of the first cell adhesion molecules discovered; the term “cadherins” is based on their calcium-dependent adhering properties. The first cadherins discovered on the epithelial, neuronal, and placental cells were named E-cadherin, P-cadherin, and N-cadherin, respectively. These classical cadherins share sequence and structural similarities. Other cadherins, including those involved in cell signaling, are grouped into non-classical cadherins. This...

Cadherins in Tissue Organization

Cadherins in Tissue Organization

The cadherins are a superfamily of cell adhesion molecules comprising over 180 variants, with specific tissues expressing a particular combination of cadherin types. Cadherins generally exhibit homophilic binding; i.e., cadherins on one cell bind to cadherins of the same or closely related type on another cell. Thus, cells of the same type have a specific affinity to bind to each other and sort themselves into clusters to form tissues.
Cell Sorting During Development
Cell sorting plays an...