系统的基因表达映射集群核受体根据它们在大脑中的功能
Françoise Gofflot1, Nathalie Chartoire, Laurent Vasseur
1Institut Clinique de la Souris, 67404 Illkirch, France.
Cell
|October 25, 2007
概括
这项研究绘制了成年老鼠大脑中的核受体 (NR),揭示了控制食和记忆的网络. MousePat数据库提供细胞分辨率表达数据,以了解大脑功能和平衡.
科学领域:
- 神经科学是一个神经科学.
- 基因组学就是基因组学.
- 分子生物学分子生物学
背景情况:
- 核受体 (NR) 是关键的转录因子,将环境线索与基因表达联系起来.
- 了解复杂大脑中的NR功能对于破译其调节作用至关重要.
研究的目的:
- 在成年小鼠大脑中创建所有49个核受体基因的综合表达图谱.
- 建立一个资源来研究NR在大脑功能和平衡中的作用.
主要方法:
- 在成年老鼠大脑的104个区域中,对49个NR基因进行了系统的定量和解剖表达分析.
- 开发交互式MousePat数据库,以可视化NR表达模式的细胞分辨率.
主要成果:
- 在小鼠大脑中生成了NR基因的详细表达图谱.
- 将NR表达模式聚合到解剖和调节网络中.
- 确定了参与控制养行为和学习/记忆的NR网络.
结论:
- MousePat数据库为大脑中NRs的功能基因组研究提供了宝贵的资源.
- NR网络在调节复杂的大脑功能和维持全身平衡中发挥着重要作用.
- 进一步挖掘MousePat数据将提高对NR介导的行为控制的理解.
相关概念视频
Chromatin Position Affects Gene Expression
Chromatin is the massive complex of DNA and proteins packaged inside the nucleus. The complexity of chromatin folding and how it is packaged inside the nucleus greatly influences access to genetic information. Generally, the nucleus' periphery is considered transcriptionally repressive, while the cell's interior is considered a transcriptionally active area.
Topologically Associated Domains (TADs)
The 3-dimensional positioning of chromatin in the nucleus influences the timing and level of...
Topologically Associated Domains (TADs)
The 3-dimensional positioning of chromatin in the nucleus influences the timing and level of...
DNA Microarrays
Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...
RNA-seq
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 microarray-based...
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while microarray-based...
Signal Transduction: Overview
Cells respond to many types of information, often through receptor proteins positioned on the membrane. They respond to chemical signals, such as hormones, neurotransmitters, and other signaling molecules, initiating a series of molecular reactions to produce an appropriate response. This is called signal transduction. Cells also coordinate different responses elicited by the same signaling molecule via mediators, allowing molecular cross-talk.
Typically, signal transduction involves three...
Typically, signal transduction involves three...
Transducer Mechanism: Nuclear Receptors
Nuclear receptors, or NRs, are unique transcription factors that regulate gene transcription and affect the cellular pathways involved in reproduction, development, or metabolism. Their ability to be stimulated by small lipophilic ligands and control vital cellular processes makes them ideal drug targets. Nearly 10-15% of currently prescribed drugs target these receptors.
About 48 different soluble family members of nuclear receptors are identified that can be divided into two main classes:
About 48 different soluble family members of nuclear receptors are identified that can be divided into two main classes:


