在COVID-19患者中,SARS-CoV-2介导的NF-κB激活的作用
Qiaoqiao Zhou1,2, Lei Zhang1,2,3, Yanming Dong4
1School of Chemistry and Life Sciences, Hubei University of Education, Wuhan, Hubei, 430205, PR China.
概括
由核因子-kappa B (NF-κB) 激活驱动的不受控制的炎症反应显著恶化了COVID-19的结果. 抑制NF-κB有望改善预后,但需要进一步研究才能安全有效地使用.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 药理学 药理学 是一个学科.
背景情况:
- SARS-CoV-2 流行病突出了疾病易感性和死亡率的差异.
- 无法控制的炎症反应与严重的COVID-19结果有很强的相关性.
- 核因子-kappa B (NF-κB) 激活与严重的COVID-19的病原发生有关.
研究的目的:
- 阐明NF-κB激活在SARS-CoV-2感染和复制中的作用.
- 分析现有的COVID-19药物对NF-κB激活的影响.
- 评估NF-κB抑制剂的治疗潜力,以改善COVID-19的预后.
主要方法:
- 对COVID-19中NF-κB激活现有的临床和实验室数据的审查和总结.
- 分析通过血管酶转化酶2 (ACE2) 介导的NF-κB激活途径.
- 评估各种COVID-19药物对NF-κB信号通路的影响.
主要成果:
- NF-κB的激活,特别是通过ACE2,在SARS-CoV-2的入侵和复制中发挥着关键作用.
- 目前的COVID-19药物对NF-κB激活产生了可变且有时有问题的影响.
- 早期使用NF-κB抑制剂 (例如,抗TNFα,抗IL-1β,抗IL-6) 的治疗与良好的结果有关.
结论:
- 准NF-κB激活是一种有前途的治疗策略,用于管理严重的COVID-19.
- 针对炎症性细胞因子的单克隆抗体显示出改善预后的潜力.
- 进一步的临床研究是必不可少的,以确定NF-κB抑制剂的最佳使用,剂量和安全性,特别是在患有并发症的患者中.
相关概念视频
NF-κB-dependent Signaling Pathway
7.5K
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...
NF-κB-dependent Signaling Mechanism
The...
7.5K
Co-activators and Co-repressors
7.4K
Gene transcription is regulated by the synergistic action of several proteins that form a complex at a gene regulatory site. This is observed in eukaryotes, where the regulation of gene expression is a complex process. Regulatory proteins in eukaryotes can broadly be classified into two types – regulators that bind directly to specific DNA sequences and co-regulators that associate with regulatory proteins but cannot directly bind to the DNA. These co-regulators are further divided into...
7.4K
T Cell Types and Functions
1.0K
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
1.0K
The JAK-STAT Signaling Pathway
8.9K
Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...
8.9K
Master Transcription Regulators
6.9K
Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...
6.9K
Regulation of Nuclear Protein Sorting
2.4K
Nuclear protein sorting regulates nucleus composition and gene expression, crucial for determining the fate of a eukaryotic cell. Hence, the entry and exit of molecules across the nuclear envelope is a tightly controlled process. Nuclear protein sorting can be inhibited by one of the following ways: 1) masking cargo signal sequences, 2) modifying the nuclear receptor's affinity for cargo, 3) controlling the nuclear pore size, 4) retaining the cargo during its transit to the cytosol or the...
2.4K


