甲状腺瘤 T3SS 效应器 CT622 诱导 THP-1 细胞中通过 TLR2/TLR4-介导的 MAPK/NF-κB 途径诱导益炎性细胞因子
Wenbo Lei1,2, Yating Wen1, Yewei Yang1
1School of Nursing, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang Medical School, Institute of Pathogenic Biology.
The Journal of infectious diseases
|December 26, 2023
概括
克拉米迪亚形虫病因子CT622通过激活通道类似受体2/4和MAPK/NF-κB通路,引发炎症,从而导致互白素-6和-8的产生.
科学领域:
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 克拉米迪亚形虫病原体涉及宿主炎症反应,但潜在的分子机制尚不清楚.
- 目前尚不清楚T3SS效应器CT622在诱导炎症中的作用.
研究的目的:
- 为了调查CT622是否诱导宿主炎症反应.
- 为了阐明参与CT622介导炎症的分子途径.
主要方法:
- 评估CT622对IL-6 (IL-6) 和IL-8表达的作用.
- 研究了基激活蛋白激酶 (MAPK) /核因子 κB (NF-κB) 信号通路的参与.
- 利用小干扰RNA抑制收费类受体4 (TLR4) 和破坏收费类受体2 (TLR2).
主要成果:
- CT622通过MAPK/NF-κB激活诱导IL-6和IL-8的表达.
- 抑制TLR4降低了ERK,p38,JNK和IκBα的酸化,降低了IL-6和IL-8.
- TLR2中断减少了CT622诱导的IL-8和ERK激活,但没有影响IL-6,p38,JNK或IκBα.
结论:
- CT622通过TLR2/4介导的MAPK/NF-κB通路促进炎症.
- 这些发现提供了对Chlamydia trachomatis感染分子病理学的见解.
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
Sexually Transmitted Infections
317
Sexually transmitted infections (STIs) are diseases transmitted primarily through unsafe sexual interactions. Bacteria, viruses, or parasites cause them and can result in severe health complications if untreated.ChlamydiaThe bacterium Chlamydia trachomatis is responsible for the disease Chlamydia, the most common STI in the United States. This peculiar pathogen requires human cells to reproduce, residing intracellularly. The initial infection often goes unnoticed because it typically does not...
317


