相关实验视频
Updated: Feb 6, 2026

11:34
Single-cell RNA Sequencing and Analysis of Human Pancreatic Islets
Published on: July 18, 2019
17.1K
单细胞RNA测序揭示了沙吉塔 mesenchyme 中的细胞异质性
Chengyan Ren1, Kai Sun2, Ran Wu3
1Department of Oral and Maxillofacial Surgery, Fujian Medical University Union Hospital, Fuzhou, China.
Frontiers in cell and developmental biology
|February 5, 2026
概括
研究人员在部 sutures中确定了短暂放大细胞 (TACs),揭示了它们作为干/干细胞 (MSCs) 的直接后裔的作用,这对部发育和平衡至关重要.
科学领域:
- 发展生物学 发展生物学
- 干细胞生物学 干细胞生物学
- 基因组学就是基因组学.
背景情况:
- 部部的形成和维护取决于部介质细胞活动.
- 介质干细胞/脑干细胞 (MSCs) 对和头骨发育的确切贡献尚未完全理解.
研究的目的:
- 为了识别和特征的细胞子群体在sagittal mesenchyme.
- 阐明特定细胞类型和调节基因在部部发育和平衡中的作用.
主要方法:
- 集成的单细胞转录基因组测序 (10x基因组学和智能-seq3).
- 用于差异化状态评估的CytoTRACE2分析.
- 5-乙烯基-2'-脱氧氨 (EdU) 试验,现场杂交和血统追踪 (Ki67CreERT2;td番茄小鼠) 以表征原始细胞.
- 生物信息学分析以确定关键的转录因素.
主要成果:
- 鉴定了一种繁殖的原始细胞群体,在形部具有暂时放大细胞 (TAC) 特性.
- TACs 是一个致力于增殖的针介酶干细胞/干细胞 (SuSCs) 血统,对于快速的头骨发育至关重要.
- 发现差异性基因表达:SuSC中的Erg和TAC中的E2f7/8,在MSC生物学和细胞循环调节中具有明显的下游目标功能.
结论:
- 在正在发展的部位中,首次确定了TAC.
- 在SUSC和TAC中阐明了关键调节基因 (Erg,E2f7/8) 和信号网络.
- 提供了一个框架,以了解骨的形成和平衡机制.
更多相关视频
相关概念视频
Mesenchymal Stem Cells
5.6K
Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...
5.6K
RNA Interference
28.1K
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
28.1K
RNA Stability
35.7K
Intact DNA strands can be found in fossils, while scientists sometimes struggle to keep RNA intact under laboratory conditions. The structural variations between RNA and DNA underlie the differences in their stability and longevity. Because DNA is double-stranded, it is inherently more stable. The single-stranded structure of RNA is less stable but also more flexible and can form weak internal bonds. Additionally, most RNAs in the cell are relatively short, while DNA can be up to 250 million...
35.7K
Alternative RNA Splicing
25.2K
Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
25.2K
Types of RNA
72.9K
Overview
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
72.9K
RNA Splicing
60.7K
Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
60.7K

