蛋白质素化和NET形成不会导致A20/TNFAIP3突变小鼠的病理
Karel F A Van Damme1,2, Pieter Hertens1,3, Arne Martens1,3
1VIB, Center for Inflammation Research, Technologiepark 71, 9052, Ghent, Belgium.
Scientific reports
|October 21, 2023
概括
A20突变不会通过蛋白质素化或中性粒细胞外细胞陷 (NETs) 引起自身免疫. PAD4 缺乏也未能防止A20突变小鼠的自身免疫,这表明这些途径在A20相关的自身免疫疾病中不是致病性.
科学领域:
- 免疫学 免疫学 免疫学
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- A20是NF-κB依赖性炎症的关键调节剂.
- TNFAIP3/A20基因中的多态性与SLE和RA等炎症性疾病有关.
- 在小鼠模型中,A20是SLE和RA的敏感性基因.
研究的目的:
- 调查蛋白质素化和NET形成在A20突变小鼠自身免疫病理中的作用.
- 为了确定A20的双基因酶 (DUB) 功能受损是否有助于自身免疫敏感性.
- 评估在A20相关的自身免疫中需要PAD4依赖的素和NET形成的必要性.
主要方法:
- 在A20突变小鼠中检查了自身免疫病理.
- 使用A20 C103R仿真小鼠来评估DUB功能中断.
- 评估PAD4缺乏的A20缺乏小鼠的自身免疫发育.
主要成果:
- 对A20 DUB功能的遗传破坏没有导致自身免疫病理.
- 在A20缺乏的小鼠中,PAD4缺乏并没有阻止自身免疫.
- 在A20相关的RA和SLE小鼠模型中,蛋白质素化和NET形成不是致病机制.
结论:
- 在A20突变小鼠中,对RA和SLE病理的发展不需要PAD4依赖的蛋白质素化和NET形成.
- 损伤的A20 DUB功能本身不会导致自身免疫.
- 这些发现澄清了A20相关的自身免疫性疾病中的致病机制.
更多相关视频
11:32Real-Time, High-Throughput Microscopic Quantification of Human Neutrophil Extracellular Trap Release and Assessing the Pharmacology of Antagonists
Published on: October 18, 2024
633
09:29Induction of Paralysis and Visual System Injury in Mice by T Cells Specific for Neuromyelitis Optica Autoantigen Aquaporin-4
Published on: August 21, 2017
11.5K
相关概念视频
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
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
