疹病毒激活的NF-κB介导抗原的处理和呈现加剧了三乙烯诱导的过敏性皮肤炎
Mengnan Yi1, Yong Niu1, Shuai Liu1
1Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
Toxicology letters
|January 19, 2024
概括
三乙烯诱导的过敏性皮肤炎 (TIHD) 被爱斯坦-巴尔病毒 (EBV) 感染恶化. 收费类受体 (TLR) 调解这种相互作用,突出显示了TIHD中化学和病毒触发者的共同途径.
科学领域:
- 免疫学 免疫学 免疫学
- 皮肤病学 皮肤病学
- 毒理学 毒理学 毒理学
背景情况:
- 三乙烯引起的过敏性皮肤炎 (TIHD) 涉及遗传和环境因素.
- 职业TCE暴露和HLA-B*13:01等位基因与过敏性有关.
- 在TIHD中观察到爱斯坦-巴尔病毒 (EBV) 激活,但机制尚不清楚.
研究的目的:
- 研究托尔类受体 (TLRs) 作为TIHD病变发生的共享机制.
- 探索EBV和三乙烯 (TCE) 对抗原呈现的协同作用.
- 阐明TLRs在TIHD病毒感染和化学物质暴露之间的相互作用中的作用.
主要方法:
- 构建了一个HLA-B*13:01转移的Hmy2.A C1R细胞模型.
- 用三乙烯 (TCOH) 和EBV处理细胞以研究抗原呈现.
- 建立了皮肤炎的小鼠模型,并使用TLR4激动剂来评估TIHD对病毒的影响.
主要成果:
- 通过TLR2/NF-κB轴,EBV和TCOH协同增强了抗原的处理和呈现.
- 一个TLR4激动剂通过TLR4/NF-κB轴在TCE敏感小鼠中加剧了皮肤病变和肝损伤.
- 病毒感染通过环境基因相互作用加剧TIHD的炎症反应.
结论:
- 在TIHD中,TLRs充当病毒感染和化学物质暴露之间的关键联系.
- TLR2/NF-κB和TLR4/NF-κB通路参与了观察到的协同效应.
- 了解这些机制可以为在遗传敏感个体中管理TIHD的策略提供信息.
相关概念视频
02:26NF-κB-dependent Signaling Pathway
7.4K
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...
7.4K
01:29Immune Response Against Viral Pathogens
789
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...
789
01:30Hypersensitivities
661
Hypersensitivity, also known as a hypersensitivity reaction or allergic reaction, is a condition where the body's immune system reacts abnormally to a foreign substance. Such substances, that cause hypersensitivity are referred to as an allergen, could be something typically harmless to most people, like pollen or certain foods.
Types of Hypersensitivities
Hypersensitivity reactions are categorized into four types: Type 1, Type 2, Type 3, and Type 4. Each type has a distinct mechanism...
Types of Hypersensitivities
Hypersensitivity reactions are categorized into four types: Type 1, Type 2, Type 3, and Type 4. Each type has a distinct mechanism...
661