化物介导的免疫损伤通过细胞因子网络调节Tregs的调节
Bingshu Liu1, Siqi Zhu1,2,3, Qiong Zhang1
1Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, China.
Toxics
|February 25, 2025
概括
长期化物暴露会通过抑制关键细胞因子和增加调节性T细胞 (Tregs) 来改变免疫功能. 这些效应是累积和持久的,即使在减少化物后.
科学领域:
- 免疫学 免疫学 免疫学
- 环境健康 环境健康
- 毒理学 毒理学 毒理学
背景情况:
- 长期暴露于化物可以破坏身体的炎症微环境并影响免疫功能.
- 了解化物影响免疫平衡的机制对于公共卫生至关重要.
- 调节性T细胞 (Tregs) 在维持免疫平衡方面发挥着至关重要的作用.
研究的目的:
- 研究化物暴露对免疫功能和细胞因子网络的长期影响.
- 探索细胞因子在化物诱导的调节性T细胞 (Tregs) 变化中的作用.
- 评估化物诱导的免疫变化的可逆性.
主要方法:
- 在受影响地区的人口调查.
- 维斯塔尔的老鼠模型具有不同的化物暴露时间和恢复期.
- 通过Luminex多重测试和ELISA测量细胞因子水平.
- 相关性,回归和调解分析以确定化物,细胞因子和Tregs之间的关系.
主要成果:
- 化物暴露抑制了促炎性 (IL-2,IL-12,IFN-γ,TNF-α) 和抗炎性 (IL-4,IL-13,IL-37) 细胞因子.
- 化物暴露增加了外周血液调节性T细胞 (Tregs) 的比例,由IL-2和IFN-γ介导.
- 特雷格的增加取决于时间,甚至在减少化物暴露后也持续存在,这表明长期影响.
结论:
- 化物暴露对免疫平衡有累积和长期的有害影响.
- 化物诱导的Treg积累和迁移,在炎症环境中通过细胞因子介导,有助于免疫失调.
- 这些发现凸显了监测和管理化物暴露的必要性,以保护免疫健康.
更多相关视频
07:07Evaluation of T Follicular Helper Cells and Germinal Center Response During Influenza A Virus Infection in Mice
Published on: June 27, 2020
5.2K
08:20In Vitro Differentiation of Human CD4+FOXP3+ Induced Regulatory T Cells (iTregs) from Naïve CD4+ T Cells Using a TGF-β-containing Protocol
Published on: December 30, 2016
20.2K
相关概念视频
T Cell Types and Functions
796
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...
796
Inflammatory Response
1.7K
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,...
1.7K
TGF - β Signaling Pathway
7.2K
The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors...
7.2K
