针对COVID-19疫苗的RNA编辑:揭示了宿主免疫力的动态表观遗传调节
Yun-Yun Jin1,2,3, Ya-Ping Liang1,2,3, Jia-Qi Pan1,2,3
1Laboratory of Genomic and Precision Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China.
Frontiers in immunology
|September 23, 2024
概括
接种COVID-19疫苗会在血液中引发广泛的RNA编辑变化,影响免疫基因表达和功能. 这些动态变化是剂量依赖的,突出显示RNA编辑.
科学领域:
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
- 基因组学就是基因组学.
背景情况:
- COVID-19疫苗对于大流行控制至关重要.
- COVID-19疫苗对RNA编辑的影响尚不清楚.
- 表观遗传修饰,特别是RNA编辑,需要进一步研究.
研究的目的:
- 为了调查COVID-19疫苗接种后转录组范围内的RNA编辑变化.
- 为了分析RNA编辑对疫苗的反应的功能影响.
- 探索疫苗剂量与RNA编辑动态之间的关系.
主要方法:
- 从260个血液样本中获取的RNA-Seq数据的表谱分析.
- 分析了来自102名健康的SARS-CoV-2原始个体的样本.
- 不同的COVID-19疫苗剂量之间的比较.
主要成果:
- 在1820个基因中确定了5592个差异性RNA编辑位点 (DRE).
- 大多数DRE网站显示上调编辑,与增加的基因表达相关.
- 编辑的基因主要参与免疫和病毒反应途径,包括APOL6,IFI30和GBP1.1的显著变化.
- 不同的ADAR表达可能有助于疫苗诱导的RNA编辑.
- 编辑RNA的变化和功能取决于剂量.
结论:
- 接种COVID-19疫苗诱导了动态的,转录组范围内的RNA编辑.
- 血液RNA编辑显著影响宿主的分子免疫系统.
- 编辑RNA的改变是接种疫苗的关键反应,受到剂量的影响.
相关概念视频
Epigenetic Regulation
3.0K
Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
X-chromosome...
3.0K
Immune Response Against Viral Pathogens
764
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
764
CRISPR
49.8K
Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...
49.8K
RNA Editing
8.9K
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...
8.9K
Nucleotide Excision Repair
3.5K
DNA Distortion and Damage
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
3.5K
Inflammatory Response
1.9K
An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
1.9K


