Related Experiment Video
Updated: Jul 25, 2025
12:44
Identification of Key Factors Regulating Self-renewal and Differentiation in EML Hematopoietic Precursor Cells by RNA-sequencing Analysis
Published on: November 11, 2014
12.4K
A novel computational method enables RNA editome profiling during human hematopoiesis from scRNA-seq data
Yan Wu1,2,3, Shijie Hao1,2, Xiaojing Xu1,2,3
1College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
Scientific Reports
|June 26, 2023
Summary
This study introduces a computational method to detect RNA editing in single-cell RNA sequencing data, revealing its role in hematopoietic stem cell differentiation and homeostasis.
Area of Science:
- Molecular Biology
- Genomics
- Bioinformatics
Background:
- RNA editing is a crucial post-transcriptional modification occurring in a cell-specific manner.
- Single-cell RNA sequencing (scRNA-seq) is powerful for studying cellular heterogeneity but faces challenges in detecting RNA editing due to low coverage.
- Understanding RNA editing's role in cell differentiation and homeostasis is vital.
Purpose of the Study:
- To develop a computational method for systematically identifying RNA editing sites in cell types using scRNA-seq data.
- To investigate the impact of RNA editing on human hematopoietic stem and progenitor cell (HSPC) differentiation.
- To explore the functional implications of RNA editing in hematopoiesis.
Main Methods:
- Development of a novel computational approach to identify RNA editing sites from scRNA-seq data.
- Application of the method to scRNA-seq data from human HSPCs with known lineage differentiation pathways.
- Analysis of dynamic RNA editing patterns and their correlation with cellular processes.
Main Results:
- The computational method successfully identified cell-type-specific RNA editing sites in HSPC scRNA-seq data.
- Dynamic RNA editing patterns were observed, highlighting their relevance in different HSPC populations.
- Specific RNA editing events, such as those in EIF2AK2 3' UTR, were found to potentially affect miRNA-mediated inhibition and activate the integrated stress response (ISR) pathway.
- RNA editing was implicated in coordinating lineage commitment and self-renewal in hematopoietic stem cells (HSCs).
Conclusions:
- Single-cell RNA sequencing data can be effectively utilized to study RNA editing events at the cell-type level.
- RNA editing plays a significant role in regulating hematopoietic processes, including differentiation, lineage commitment, and self-renewal.
- RNA editing may function through multiple regulatory modules to influence hematopoiesis.
Related Concept Videos
03:21RNA-seq
10.1K
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...
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
10.1K
02:23RNA Editing
9.1K
RNA editing is a post-transcriptional modification where a precursor mRNA (pre-mRNA) nucleotide sequence is changed by base insertion, deletion, or modification. The extent of RNA editing varies from a few hundred bases, in mitochondrial DNA of trypanosomes, to a just single base, in nuclear genes of mammals. Even a single base change in the pre-mRNA can convert a codon for one amino acid into the codon for another amino acid or a stop codon. This type of re-coding can significantly affect the...
9.1K
02:24Ribosome Profiling
3.6K
Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
3.6K