机体发生DB:一个全面的数据库探索细胞类型的身份和基因表达动态在机体发生过程中
Xinshuai Zhang1,2, Jiacheng Ma3, Hongchao Li1,4
1State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, 102206, China.
Small methods
|July 5, 2024
概括
机体发育DB是一个新的数据库,为超过140万个细胞提供单细胞RNA测序数据,帮助研究胚胎发育和机体发育. 它提供了在器官发育期间用于细胞类型识别和基因表达分析的工具.
科学领域:
- 发育生物学 发展生物学
- 基因组学就是基因组学.
- 生物信息学是一种生物信息学.
背景情况:
- 机体生成对于理解胚胎发育过程中的细胞分化和成熟至关重要.
- 单细胞转录组学已经产生了大量的数据集,用于研究器官生成.
- 需要一个集中资源来整合和分析这些数据.
研究的目的:
- 开发OrganogenesisDB,这是一个全面的数据库,用于探索细胞类型识别和基因表达动态在机体发生过程中.
- 为分析来自各种器官生成研究的单细胞RNA测序数据提供一个平台.
- 促进对细胞系确定和器官发育中的调控机制的理解.
主要方法:
- 从49个已发表的数据集中收集和策划的单细胞RNA测序数据,总计超过140万个细胞.
- 在9个人类器官和4个小鼠器官中,手工精选了3324个细胞标记物,用于1120种细胞类型.
- 集成了各种用于细胞类型注释,基因表达动态和模式挖掘的分析工具.
主要成果:
- 机体生成DB托管了广泛的单细胞RNA测序数据,涵盖了各种发育阶段.
- 该数据库包括手动策划的细胞标记物和多个人类和小鼠器官的细胞类型.
- 在OrganogenesisDB中的分析工具有助于了解细胞种群和识别关键调节基因.
结论:
- 机体发生DB是研究器官发生和胚胎发育的研究人员的关键资源.
- 该数据库有助于细胞类型识别,基因表达分析和对器官发育的机械洞察.
- 这种资源有助于破译细胞谱系的确定,并揭示基底有机体发生的分子机制.
相关概念视频
Cell Specific Gene Expression
13.6K
Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...
13.6K
Cellular Differentiation
2.6K
How does a complex organism such as a human develop from a single cell? It all starts from a single fertilized egg which gives rise to a vast array of cell types, such as nerve cells, muscle cells, and epithelial cells that characterize the adult? Throughout development and adulthood, cellular differentiation leads cells to assume their final morphology and physiology. Differentiation is the process by which unspecialized cells become specialized to carry out distinct functions.
A zygote is a...
A zygote is a...
2.6K
Zygotic Development And Stem Cell Formation
5.1K
The development of all multicellular organisms starts with the fusion of haploid cells called sperm and egg to form a diploid zygote. A zygote is a totipotent cell that can develop into a complete organism. The zygote undergoes cell division or cleavage to form an 8-cell mass. Until this stage, the cells are spherical, loosely attached, and remain totipotent. Totipotent cells are capable of developing both the embryonic and the extraembryonic tissues. However, as they continue to divide, they...
5.1K
Regulation of Expression Occurs at Multiple Steps
3.0K
3.0K
General Transcription Factors
5.2K
Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
5.2K
Regulation of Expression at Multiple Steps
888
The gene expression in cells is regulated at different stages: (i) transcription, (ii) RNA processing, (iii) RNA localization, and (iv) translation. Transcriptional regulation is mediated by regulatory proteins such as transcription factors, activators, or repressors—these control gene expression by initiating or inhibiting the transcription of genes. Once a precursor or pre-mRNA is produced, it undergoes post-transcriptional modification, including 5' capping, splicing, and the...
888


