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相关概念视频

RNA-seq03:21

RNA-seq

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RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases. 
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
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Reporter Genes02:11

Reporter Genes

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Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.
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Vibrodissociation of Neurons from Rodent Brain Slices to Study Synaptic Transmission and Image Presynaptic Terminals
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电压-Seq:全光学后突触连接体引导的单细胞转录组学.

Veronika Csillag1, Marianne Hiriart Bizzozzero1, J C Noble2

  • 1Department of Neuroscience, Karolinska Institute, Stockholm, Sweden.

Nature methods
|July 20, 2023
PubMed
概括
此摘要是机器生成的。

电压Seq通过分类 postsynaptic 响应类型 (PRTs) 来实现单细胞RNA 测序的目标神经元选择. 这种方法将神经元连接与基因表达联系起来,推进了连接组研究.

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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
  • 系统神经科学 系统神经科学

背景情况:

  • 描述神经元连接对于理解信息流动至关重要.
  • 后突触反应类型 (PRT) 多样化,但由于低通量电生理学和缺乏scRNA-seq选择标准,很难与基因表达联系起来.

研究的目的:

  • 基于特定的PRT开发一种针对神经元的方法,用于随后的单细胞RNA测序 (scRNA-seq).
  • 克服传统电生理学的局限性,并将功能反应与遗传特征进行整合.

主要方法:

  • 开发了Voltage-Seq,一种全光电压成像技术.
  • 记录了 8,347 个神经元的 PRT,这些神经元在小鼠的周周导管灰色 (PAG) 中通过光遗传学激活 ventromedial hypothalamic (VMH) 终端而引起.
  • 创建了VoltView,一个现场分析工具与分类器,用于使用VMH-PAG连接组数据库向目标PRT导航索马收获.

主要成果:

  • 在VMH-PAG连接组中分类和空间解析的PRT.
  • 通过在PAG中识别VMH驱动的γ-aminobutyric acid-ergic神经元,成功地证明了Voltage-Seq,仅基于现场VoltView分类.
  • 建立了功能神经元活动 (PRTs) 和遗传身份 (scRNA-seq) 之间的联系.

结论:

  • 电压-Seq提供了一个高通量方法,以功能性地描述神经元群体.
  • 这种技术可以为scRNA-seq进行向细胞采集,弥合神经元连接,功能和基因表达之间的差距.
  • 电压-Seq显著推进神经电路和连接学研究.