布鲁塞拉效应蛋白 BspF 克罗托尼拉特 TRIM38 抑制NF-κB 和 MAPK 信号通路
Huan Zhang1, Yukai Xing1, Jinying Zhu1
1Key Laboratory of Livestock Infectious Disease, Ministry of Education, Shenyang Agricultural University, Shenyang 110866, China.
International journal of molecular sciences
|May 7, 2025
概括
布鲁塞拉病毒是什么?
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:
- 第四类分泌系统 (T4SS) 是布鲁塞拉感染的关键毒性因素.
- 布鲁塞拉T4SS效应器调节宿主细胞过程,帮助细菌的生存和复制.
- 之前发现,BspF是一种布鲁塞拉效应物,在K142.2处可对TRIM38进行克罗托尼拉.
研究的目的:
- 为了研究BSPF介导的TRIM38化在调节宿主在布鲁塞拉感染期间的炎症反应中的作用.
- 阐明BspF影响宿主天生的免疫力的分子机制.
主要方法:
- 蛋白质组学分析,以确定克罗化位点.
- 西方涂抹用于评估蛋白质无处不在和降解.
- 报告员测试测量NF-κB,MAPK和JNK通路激活.
- 通过ELISA测量促炎性细胞因子分泌量 (IL-6,IL-8).
主要成果:
- 通过BspF介导的TRIM38 K142化促进了TRAF6的无处不在和降解.
- 这一过程抑制了NF-κB,p38 MAPK和JNK MAPK信号通路.
- 抑制了促炎性细胞因子IL-6和IL-8的分泌.
- 布鲁塞拉表现出增强的细胞内生存能力.
结论:
- 通过BSPF介导的TRIM38化是一种新的机制,使得布鲁塞拉能够逃避宿主天生的免疫力.
- 这项研究揭示了布鲁塞拉的一种新的致病机制,涉及非歇斯顿缩.
- 这些发现提供了关于布鲁塞拉病原和潜在治疗点的见解.
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