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洞察宿主-病原体在Francisella novicida感染期间的相互作用中的无处不在动态

Luyu Yang¹, Yanfeng Li¹, Qingqing Xie¹

¹Key Laboratory for Experimental Teratology of the Ministry of Education, Advanced Medical Research Institute, Cheeloo College of Medicine, Qilu Hospital, Shandong University, Jinan, Shandong, 250012, China.

Cell communication and signaling : CCS

|October 18, 2024

概括

在Francisella novicida感染期间,I型干扰素 (IFN-I) 信号显著改变宿主蛋白的泛化. 这影响了炎症反应,细胞死亡和细菌生存,揭示了关键的宿主-病原体相互作用.

科学领域:

免疫学免疫学免疫学
分子生物学分子生物学
蛋白质组学是指蛋白质组学.

背景情况:

在感染期间的免疫反应和细胞死亡中,乌比基因化是至关重要的.
致病细菌利用无处不在的机械来生存.
一种类型的干扰素 (IFN-I) 信号可能会损害宿主对Francisella novicida (F. novicida) 的防御能力.

研究的目的:

为了研究在F. novicida感染期间宿主蛋白质泛化中的动态变化.
确定IFN-I信号在调节F. novicida.反应中的泛化中的作用.
确定受F. novicida和IFN-I.影响的关键无处不在的蛋白质和通路.

主要方法:

用细胞培养 (SILAC) 中的氨基酸进行了diGly蛋白质组学和稳定同位素标记,用于定量分析.
在野生类型 (WT) 和干扰素α受体缺陷 (Ifnar^-/-) 主要骨髓衍生巨细胞 (BMDMs) 中比较了无处不在的概况.
分析了对F. novicida感染的反应中的泛素化位点变化.

主要成果:

在1077种内源性蛋白质上确定了2,491个无处不在的位.
感染F.novicida诱导了与细胞死亡,细胞分裂和炎症相关的途径中的动态泛变化.
在F. novicida感染后,IFN-I信号传递对于增加和减少无处不在都至关重要.
在糖解和囊泡运输蛋白中发现了依赖IFN-I的泛化,并在细胞死亡途径中确定了关键的泛化蛋白.

结论:

在F. novicida感染期间,IFN-I信号深刻影响宿主蛋白质的泛化.
在宿主对F. novicida的反应调节方面,化动态是至关重要的.
这些发现提供了对包括无处不在和IFN-I信号的复杂宿主-病原体相互作用的见解.

关键词:

在F.novicida中,我们发现了宿主-病原体相互作用巨细胞是一个巨细胞.在无处不在的某个地方.

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